Featured Categories

  • Tools & Machining
  • Shipping, Packaging & Office Supplies
  • Plumbing
  • Safety

Shop Categories

  • Abrasives & Polishers
  • Adhesives & Tapes
  • Electrical Supplies
  • Electronics
  • Fasteners
  • Food Service & Restaurant Supplies
  • Furniture, Linens & Decor
  • Grounds & Outdoor
  • Hardware & Building Materials
  • Heating & Cooling
  • Janitorial & Cleaning Supplies
  • Lab Equipment & Supplies
  • Lighting
  • Material Handling
  • Medical & Personal Care
  • Paint, Coatings & Supplies
  • Plumbing
  • Power Transmission
  • Pumps
  • Raw Materials
  • Safety
  • Shipping, Packaging & Office Supplies
  • Storage & Workspace
  • Test Instruments & Gauges
  • Tools & Machining
  • Vehicle Maintenance
  • Welding, Soldering & Brazing
  • About Us
  • Promo Codes
  • Contact Us
Added to Cart
Skip to Main Content
FREE Shipping on orders over $50 after you .
Zoro Homepage
Close icon
Clipboard Icon Clipboard Icon Quick Order
Cart Icon
0
Cart Icon
0
Cart
  • Low prices on everyday needs. Shop Zoro Select
  • Don't miss these limited time offers. Shop All Deals
  • Get 30 days to pay with Net 30. Apply Now
  1. Home
  2. /
  3. Power Transmission
  4. /
  5. Hydraulic Cylinders & Equipment
  6. /
  7. Parts & Accessories
  8. /
  9. Sight Plugs
Search Feedback

Sight Plugs (305 items) - Page 8

Enerpac Plug DA9841009
Enerpac

Plug

Zoro # G0752495
Mfr # DA9841009
product price: $138.99
/ea
Free-Angle Plug, Free Angle, Tru-Flate, 1/4" Body Size, 1/4" Male NPT NFAP-N2M-TRUFL
Free-Angle

Plug, Free Angle, Tru-Flate, 1/4" Body Size, 1/4" Male NPT

Zoro # G3638812
Mfr # NFAP-N2M-TRUFL
product price: $33.75
/ea
Sold in mult. of 2 for $67.50
No Product Image Available
Jw Winco

Sight Glass, SS, 23 mm Hex Thick

Zoro # G816518017
Mfr # 743.4-14-G1/2-B
product price: $36.29
/ea
Elesa Oil level indicators, HGFT.21/PR-1 NPT HGFT-PR (inch sizes)
Elesa

Oil level indicators, HGFT.21/PR-1 NPT

Zoro # G2379792
Mfr # HGFT-PR (inch sizes)
product price: $8.75
/ea
Elesa SS screws, AISI 304 SS nuts and washers, HCX.127-PT-SST-M12 HCX-PT-SST
Elesa

SS screws, AISI 304 SS nuts and washers, HCX.127-PT-SST-M12

Zoro # G2273471
Mfr # HCX-PT-SST
product price: $68.45
/ea
Kipp Oil Level Sight Glass D1=G1/4, D=20, 5, Form:A Without Reflector, Thermoplastic K0445.120014
Kipp

Oil Level Sight Glass D1=G1/4, D=20, 5, Form:A Without Reflector, Thermoplastic

Zoro # G702083162
Mfr # K0445.120014
product price: $1.39
/ea
Sold in mult. of 6 for $8.34
Elesa Oil level sight glass, HGFT.21/SL-1 HGFT.
Elesa

Oil level sight glass, HGFT.21/SL-1

Zoro # G2257076
Mfr # HGFT.
product price: $7.99
/ea
Sold in mult. of 2 for $15.98
No Product Image Available
Elesa

Sight Gauge, 87/100 in, 87/100 in Hex W

Zoro # G221673318
Mfr # 14441
product price: $7.89
/ea
Sold in mult. of 2 for $15.78
Kipp Oil Level Sight Glass D1=M20X1, 5, D=28, Form:B With Reflector, Thermoplastic K0445.2282015
Kipp

Oil Level Sight Glass D1=M20X1, 5, D=28, Form:B With Reflector, Thermoplastic

Zoro # G102083403
Mfr # K0445.2282015
product price: $2.29
/ea
Sold in mult. of 4 for $9.16
No Product Image Available
Jw Winco

Sight Glass, Brass, 46 mm Hex Thick

Zoro # G116518601
Mfr # 12CTK4
product price: $69.79
/ea
No Product Image Available
Jw Winco

Sight Glass, SS, 23 mm Hex Thick

Zoro # G616518002
Mfr # 7440-14-G1/2-A-2
product price: $77.89
/ea
Kipp Oil Level Sight Glass D1=G1/2, D=28, Form:B With Reflector, Thermoplastic K0445.228012
Kipp

Oil Level Sight Glass D1=G1/2, D=28, Form:B With Reflector, Thermoplastic

Zoro # G802083628
Mfr # K0445.228012
product price: $2.29
/ea
Sold in mult. of 4 for $9.16
Advanced Technology Products Plug, Steel, ARO, 1/4" Body Size, 1/4" Female NPT 14PA-N2F
Advanced Technology Products

Plug, Steel, ARO, 1/4" Body Size, 1/4" Female NPT

Zoro # G3635769
Mfr # 14PA-N2F
product price: $2.15
/ea
Sold in mult. of 30 for $64.50
Elesa Oil level sight glass, HGFT.40-2 C9 HGFT.
Elesa

Oil level sight glass, HGFT.40-2 C9

Zoro # G2257828
Mfr # HGFT.
product price: $11.65
/ea
Elesa sensor, HCK.127-ZN-M12-FKM-PC-P-E-HT-NC-ST80-NC HCK-E-ST
Elesa

sensor, HCK.127-ZN-M12-FKM-PC-P-E-HT-NC-ST80-NC

Zoro # G2053349
Mfr # HCK-E-ST
product price: $158.99
/ea
Elesa Oil level sight glass, HGFT.21-1 C6 HGFT.
Elesa

Oil level sight glass, HGFT.21-1 C6

Zoro # G2255527
Mfr # HGFT.
product price: $8.75
/ea
No Product Image Available
Jw Winco

Sight Glass, SS, 30 mm Hex Thick

Zoro # G416518103
Mfr # 743.4-18-M27X1.5-A
product price: $53.75
/ea
No Product Image Available
Jw Winco

Sight Glass, Aluminum, 18 mm Hex Thick

Zoro # G116518113
Mfr # 743.1-7-M14X1.5-B
product price: $29.99
/ea
No Product Image Available
Jw Winco

Sight Glass, SS, 46 mm Hex Thick

Zoro # G916518078
Mfr # 743.4-32-M42X1.5-B
product price: $80.95
/ea
Enerpac Plug M592006
Enerpac

Plug

Zoro # G0752477
Mfr # M592006
product price: $118.99
/ea
Advanced Technology Products Plug, Chrome-Plated, Industrial, 3/8" Body Size, 1/2" Male NPT 38PIC-N4M
Advanced Technology Products

Plug, Chrome-Plated, Industrial, 3/8" Body Size, 1/2" Male NPT

Zoro # G3638602
Mfr # 38PIC-N4M
product price: $4.65
/ea
Sold in mult. of 12 for $55.80
Elesa Oil level sight glass, HFTX.21-M26x1.5 HFTX.
Elesa

Oil level sight glass, HFTX.21-M26x1.5

Zoro # G2306907
Mfr # HFTX.
product price: $4.15
/ea
Sold in mult. of 2 for $8.30
Enerpac Adj.Plug DA4995006
Enerpac

Adj.Plug

Zoro # G0747577
Mfr # DA4995006
product price: $217.99
/ea
Elesa Oil level sight glass, HFTR.20/PR-3/4 HFTR-PR
Elesa

Oil level sight glass, HFTR.20/PR-3/4

Zoro # G2257557
Mfr # HFTR-PR
product price: $5.15
/ea
Sold in mult. of 2 for $10.30
No Product Image Available
Jw Winco

Sight Glass, Aluminum, 36 mm Hex Thick

Zoro # G816518543
Mfr # 744-24-G1-A
product price: $21.55
/ea
Kipp Oil Level Sight Glass D1=G3/4, D=36, Form:A Without Reflector, Thermoplastic K0445.135034
Kipp

Oil Level Sight Glass D1=G3/4, D=36, Form:A Without Reflector, Thermoplastic

Zoro # G802083857
Mfr # K0445.135034
product price: $2.55
/ea
Sold in mult. of 4 for $10.20
No Product Image Available
Jw Winco

Sight Glass, SS, 30 mm Hex Thick

Zoro # G416518066
Mfr # 743.4-18-M26X1.5-A
product price: $53.75
/ea
No Product Image Available
Jw Winco

Sight Glass, SS, 30 mm Hex Thick

Zoro # G516517952
Mfr # 7440-18-M26X1.5-A-2
product price: $79.49
/ea
Elesa Zinc-plated steel screws, nuts and washers, HCX.127-PT-M12 HCX-PT
Elesa

Zinc-plated steel screws, nuts and washers, HCX.127-PT-M12

Zoro # G2274409
Mfr # HCX-PT
product price: $35.75
/ea
Kipp Oil Level Sight Glass D1=M16X1, 5, D=22, Form:B With Reflector, Thermoplastic K0445.2221615
Kipp

Oil Level Sight Glass D1=M16X1, 5, D=22, Form:B With Reflector, Thermoplastic

Zoro # G802083581
Mfr # K0445.2221615
product price: $2.15
/ea
Sold in mult. of 5 for $10.75
Advanced Technology Products Plug, Chrome-Plated, Industrial, 3/8" Body Size, 3/8" Hose Barb 38PIC-3B
Advanced Technology Products

Plug, Chrome-Plated, Industrial, 3/8" Body Size, 3/8" Hose Barb

Zoro # G3636259
Mfr # 38PIC-3B
product price: $3.19
/ea
Sold in mult. of 16 for $51.04
Elesa Oil level sight glass, HFTX.15/PR-1/2 HFTX-PR
Elesa

Oil level sight glass, HFTX.15/PR-1/2

Zoro # G2307239
Mfr # HFTX-PR
product price: $3.15
/ea
Sold in mult. of 3 for $9.45
Enerpac Plug DD1722006
Enerpac

Plug

Zoro # G0752501
Mfr # DD1722006
product price: $134.99
/ea
Free-Angle Plug, Free Angle, Industrial, 1/4" Body Size, 3/8" Male NPT NFAP-N3M-UA
Free-Angle

Plug, Free Angle, Industrial, 1/4" Body Size, 3/8" Male NPT

Zoro # G3639549
Mfr # NFAP-N3M-UA
product price: $22.19
/ea
Sold in mult. of 2 for $44.38
No Product Image Available
Jw Winco

Sight Glass, SS, 36 mm Hex Thick

Zoro # G416518028
Mfr # 7440-24-M33X1.5-A-2
product price: $95.45
/ea
Technifit Plug, Stainless Steel, Industrial, 1/4" Body Size, 1/4" Female NPT SS14PI-N2F
Technifit

Plug, Stainless Steel, Industrial, 1/4" Body Size, 1/4" Female NPT

Zoro # G3639838
Mfr # SS14PI-N2F
product price: $5.15
/ea
Sold in mult. of 12 for $61.80
Sight Plugs (305 items) - Page 8
  • First
  • Previous
  • 8
    of 9 pages
  • Next
  • Last

About Sight Plugs

Sight Plugs are a type of device used to monitor oil levels, check the pressure or temperature of an enclosed system, and visually inspect a process or operation. They are designed to provide a safe, reliable way to view into systems without compromising safety or reliability.

Types of Sight Plugs

Sight Plugs come in many different shapes and sizes. Hydraulic sight plugs allow for quick identification of fluid levels in hydraulic systems. Oil level sight glass plug is specifically designed for monitoring oil levels. Sight gages are typically used for visual inspections and can be used with a variety of fluids and gases. Sight glass plugs are available in both threaded and flanged connections, making them suitable for most applications.

How Sight Plugs are Made

Sight Plugs are typically made from steel, stainless steel, aluminum alloy, brass alloy, or plastic material. Different types may also feature materials such as borosilicate glass or acrylic depending on the application they’re being used for. These materials make the sight plug durable enough to withstand high temperatures and pressures.

Industries that use Sight Plugs

Sight Plugs have many applications across industries such as automotive, manufacturing, aerospace engineering, chemical processing plants, food processing plants and more. Professionals in these industries rely on sight plugs to accurately monitor their operations while ensuring safety regulations are met.

Find the Sight Plugs You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of sight plugs, along with other tools or equipment to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time.

Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

Related Categories

Hydraulic Filtration PartsHydraulic Hose Adapters & PlugsHydraulic Quick CouplersHydraulic Check ValvesHydraulic Hose Fittings
Hydraulic Control ValvesHydraulic Pressure Line FiltersBreathersHydraulic Bulk HosesHydraulic High Pressure Hoses
level sight glassoil level indicatorlubesite sight plugsbreather plugnpt thread gauge
ldi industries sight plugs1/4 bsppliquid level sight glassgage glassnpt thread gage

Sign Up & Save

Take 10% off your next order when you sign up for Zoro emails. Subscribe now to receive your promo code via email.

Follow Us

  • Facebook
  • YouTube
  • LinkedIn
  • Instagram
Every Part Plays a Part

Information

  • About Us
  • Accessibility
  • Careers
  • Inclusion
  • Giving Back
  • Resource Hub
  • Returns
  • Shipping

Shopping

  • Brands
  • Collections
  • My Account
  • Payments
  • Promo Codes
  • Sitemap
  • Track My Order

Services

  • Customer Service
  • FAQs
  • Net 30 Terms
  • Reseller Program
  • Sell on Zoro
  • Participate in Research

Zoro, Inc

Connect

Customer Service From Real People

  • Phone: (855) 289-9676
  • Contact Us

© 2011-2026 Zoro Tools, Inc. All rights reserved.
  • Terms & Conditions
  • Terms of Access
  • Privacy Policy
Zoro, Inc