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  9. Sight Plugs

Sight Plugs (287 items) - Page 4

Elesa Oil level sight glass, HFTX.14-M20x1.5 HFTX.
Elesa

Oil level sight glass, HFTX.14-M20x1.5

Zoro # G2305111
Mfr # HFTX.
product price:  $3.59
/ea
Sold in mult. of 3 for $10.77
Kipp Oil Level Sight Glass D1=G1, D=42, Form:B With Reflector, Thermoplastic K0445.243100
Kipp

Oil Level Sight Glass D1=G1, D=42, Form:B With Reflector, Thermoplastic

Zoro # G502083690
Mfr # K0445.243100
product price:  $3.89
/ea
Sold in mult. of 2 for $7.78
Elesa Oil level sight glass, HFTX.18-M25x1.5 HFTX.
Elesa

Oil level sight glass, HFTX.18-M25x1.5

Zoro # G2307458
Mfr # HFTX.
product price:  $5.55
/ea
Sold in mult. of 2 for $11.10
Lubesite Oil Level Sight Plug, 1/2" NPT LSPB 50
Lubesite

Oil Level Sight Plug, 1/2" NPT

Zoro # G1530772
Mfr # LSPB 50
product price:  $15.99
/ea
Sold in mult. of 9 for $143.91
Elesa Oil level sight glass HGFT.
Elesa

Oil level sight glass

Zoro # G2256227
Mfr # HGFT.
product price:  $9.95
/ea
Elesa Oil electrical level indicators, HCV.254-E-NO-M12 HCV-E
Elesa

Oil electrical level indicators, HCV.254-E-NO-M12

Zoro # G2260101
Mfr # HCV-E
product price:  $116.99
/ea
No Product Image Available
Jw Winco

Sight Glass, SS, 23 mm Hex Thick

Zoro # G116518090
Mfr # 743.4-14-G1/2-A
product price:  $36.45
/ea
Advanced Technology Products Plug, Steel, Industrial, 1/4" Body Size, 3/8" Male NPT 14PI-N3M
Advanced Technology Products

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

Zoro # G3636590
Mfr # 14PI-N3M
product price:  $2.15
/ea
Sold in mult. of 30 for $64.50
Advanced Technology Products Plug, Chrome-Plated, Industrial, 3/8" Body Size, 1/2" Female NPT 38PIC-N4F
Advanced Technology Products

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

Zoro # G3637528
Mfr # 38PIC-N4F
product price:  $5.15
/ea
Sold in mult. of 12 for $61.80
Free-Angle Plug, Free Angle, Industrial, 1/4" Body Size, 1/8" Male NPT NFAP-N1M-UA
Free-Angle

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

Zoro # G3637047
Mfr # NFAP-N1M-UA
product price:  $26.89
/ea
Sold in mult. of 2 for $53.78
Free-Angle Plug, Free Angle, Japanese, 1/4" Body Size, 1/4" Male NPT NFAP-N2M-JIS
Free-Angle

Plug, Free Angle, Japanese, 1/4" Body Size, 1/4" Male NPT

Zoro # G3637832
Mfr # NFAP-N2M-JIS
product price:  $31.15
/ea
Sold in mult. of 2 for $62.30
Free-Angle Plug, Free Angle, ISO 6150C, 1/4" Body Size, 1/4" Male NPT NFAP-N2M-C84
Free-Angle

Plug, Free Angle, ISO 6150C, 1/4" Body Size, 1/4" Male NPT

Zoro # G3638672
Mfr # NFAP-N2M-C84
product price:  $26.49
/ea
Sold in mult. of 2 for $52.98
Oil-Rite Fused Window Sights - 1/4in. NPT, 5/8in. , None, Aluminum Ball, 5/16in. A2890-1
Oil-Rite

Fused Window Sights - 1/4in. NPT, 5/8in. , None, Aluminum Ball, 5/16in.

Zoro # G416478834
Mfr # A2890-1
product price:  $6.25
/ea
Sold in mult. of 2 for $12.50
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
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:  $24.39
/ea
Sold in mult. of 2 for $48.78
Free-Angle Plug, Free Angle, Industrial, 3/8" Body Size, 3/8" Male NPT NFAP-N3M-UB
Free-Angle

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

Zoro # G3640136
Mfr # NFAP-N3M-UB
product price:  $27.99
/ea
Sold in mult. of 2 for $55.98
Free-Angle Plug, Free Angle, Japanese, 1/4" Body Size, 1/4" BSPT Male NFAP-2M-JIS
Free-Angle

Plug, Free Angle, Japanese, 1/4" Body Size, 1/4" BSPT Male

Zoro # G3638849
Mfr # NFAP-2M-JIS
product price:  $28.55
/ea
Sold in mult. of 2 for $57.10
No Product Image Available
Jw Winco

Sight Glass, Brass, 30 mm Hex Thick

Zoro # G116518144
Mfr # 743.2-18-M26X1.5-A
product price:  $24.55
/ea
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
J.W. Winco Aluminum Fluid Level Sight Glass w/ Prismatic Reflector - G 1/2 " Pipe Thread - J.W. Winco R54 744-14-G1/2-A
J.W. Winco

Aluminum Fluid Level Sight Glass w/ Prismatic Reflector - G 1/2 " Pipe Thread - J.W. Winco R54

Zoro # G104875679
Mfr # 744-14-G1/2-A
product price:  $17.75
/ea
Sold in mult. of 2 for $35.50
Elesa Column level indicators, HCZ.127-1/2-13 HCZ. (inch sizes)
Elesa

Column level indicators, HCZ.127-1/2-13

Zoro # G2376496
Mfr # HCZ. (inch sizes)
product price:  $27.79
/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
Elesa Oil level sight glass, HFTX.19-M27x1.5 HFTX.
Elesa

Oil level sight glass, HFTX.19-M27x1.5

Zoro # G2306520
Mfr # HFTX.
product price:  $4.79
/ea
Sold in mult. of 2 for $9.58
Kipp Oil Level Sight Glass D1=G1_1/4, D=51, Form:B With Reflector, Thermoplastic K0445.251114
Kipp

Oil Level Sight Glass D1=G1_1/4, D=51, Form:B With Reflector, Thermoplastic

Zoro # G802083727
Mfr # K0445.251114
product price:  $6.15
/ea
Sold in mult. of 2 for $12.30
Elesa Oil level sight glass, HFTX.12/PR-3/8 HFTX-PR
Elesa

Oil level sight glass, HFTX.12/PR-3/8

Zoro # G2306356
Mfr # HFTX-PR
product price:  $2.75
/ea
Sold in mult. of 3 for $8.25
Elesa Column level indicators, HCZ.76-P-1/2-13 HCZ. (inch sizes)
Elesa

Column level indicators, HCZ.76-P-1/2-13

Zoro # G2376222
Mfr # HCZ. (inch sizes)
product price:  $30.79
/ea
Kipp Oil Level Sight Glass D1=G1_1/4, D=51, Form:A Without Reflector, Thermoplastic K0445.151114
Kipp

Oil Level Sight Glass D1=G1_1/4, D=51, Form:A Without Reflector, Thermoplastic

Zoro # G202083402
Mfr # K0445.151114
product price:  $5.95
/ea
Sold in mult. of 2 for $11.90
Elesa Oil level indicators, HCX.76-BW-SST-M10 HCX-BW-SST
Elesa

Oil level indicators, HCX.76-BW-SST-M10

Zoro # G2270750
Mfr # HCX-BW-SST
product price:  $60.85
/ea
Kipp Oil Level Sight Glass D1=M40X1, 5, D=51, Form:B With Reflector, Thermoplastic K0445.2514015
Kipp

Oil Level Sight Glass D1=M40X1, 5, D=51, Form:B With Reflector, Thermoplastic

Zoro # G202083709
Mfr # K0445.2514015
product price:  $6.45
/ea
Sold in mult. of 2 for $12.90
Kipp Oil Level Sight Glass With Reflector, D1=G1_1/4, D=55, Aluminum K0448.52114
Kipp

Oil Level Sight Glass With Reflector, D1=G1_1/4, D=55, Aluminum

Zoro # G102204105
Mfr # K0448.52114
product price:  $16.69
/ea
Kipp Oil Level Sight Glass D1=G1_1/2, D=58, Form:B With Reflector, Thermoplastic K0445.258112
Kipp

Oil Level Sight Glass D1=G1_1/2, D=58, Form:B With Reflector, Thermoplastic

Zoro # G702083551
Mfr # K0445.258112
product price:  $7.65
/ea
Pai Glass Site Connector Mack Multiple Application 1/2In-14 Npt With Thread Tape 803867
Pai

Glass Site Connector Mack Multiple Application 1/2In-14 Npt With Thread Tape

Zoro # G615231070
Mfr # 803867
product price:  $65.25
/ea
Elesa Oil level sight glass, HFTX.18-M25x1.5-EX HFTX-EX
Elesa

Oil level sight glass, HFTX.18-M25x1.5-EX

Zoro # G2067909
Mfr # HFTX-EX
product price:  $13.69
/ea
Elesa Oil level sight glass, HFTX.24-1 HFTX.
Elesa

Oil level sight glass, HFTX.24-1

Zoro # G2309707
Mfr # HFTX.
product price:  $5.19
/ea
Sold in mult. of 2 for $10.38
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 Oil level sight glass, HFTX.11-M16x1.5 HFTX.
Elesa

Oil level sight glass, HFTX.11-M16x1.5

Zoro # G2306417
Mfr # HFTX.
product price:  $3.29
/ea
Sold in mult. of 3 for $9.87
Sight Plugs (287 items) - Page 4
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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 Cylinder PartsMaintenance SetsHydraulic Filtration PartsHydraulic Quick CouplersBreathers
Hydraulic Hose Adapters & PlugsHydraulic Control ValvesHydraulic Check ValvesHydraulic Return Line FiltersHydraulic Hand Pumps
sight plug gaugeoil level sightsight glassesnpt thread gaugeliquid level sight glass
oil level indicatorspress fit sight glassbreather plugsight plug gage1/4 bspp

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