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303 Stainless Steel Gasketed Window Sights allow visual observation of liquid levels and their condition. Stainless steel is resistant to corrosion, rust, and staining.  It maintains its appearance over long periods and minimizes unwanted bonding between parts.  These window sights may be mounted into any corresponding pipe thread. They can be used to display fluid motion or mechanical movements, as well as to view and perform tests in a safe enclosure. Specific uses include fluid sighting on hydraulic tanks, pressure vessels, reservoirs, packaged power equipment, hydraulic lines and dipping. Their use can be applied to any application where oil or fluid inspection is essential.

SS Gasketed Window Site NPT Thread Category
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Item #

Thread Type

Thread Size

Hex Size

Sight

Seals

Reflector

Max Pressure

Body

B4763-01B N/A Tapered N/A 1/4" NPT N/A 5/8" Hex N/A 5/16" dia N/A Buna-N N/A None N/A 125 PSI N/A 303 Stainless Steel
B4763-02B N/A Tapered N/A 3/8" NPT N/A 3/4" Hex N/A 15/32" dia N/A Buna-N N/A None N/A 125 PSI N/A 303 Stainless Steel
B4763-03B N/A Tapered N/A 1/2" NPT N/A 15/16" Hex N/A 19/32" dia N/A Buna-N N/A None N/A 125 PSI N/A 303 Stainless Steel
B4763-04B N/A Tapered N/A 3/4" NPT N/A 1 1/16" Hex N/A 25/32" dia N/A Buna-N N/A None N/A 125 PSI N/A 303 Stainless Steel
B4763-05B N/A Tapered N/A 1" NPT N/A 1 3/8" Hex N/A 1" dia N/A Buna-N N/A None N/A 100 PSI N/A 303 Stainless Steel
B4763-06B N/A Tapered N/A 1 1/4" NPT N/A 1 3/4" Hex N/A 1 19/64" dia N/A Buna-N N/A None N/A 50 PSI N/A 303 Stainless Steel
B4763-07B N/A Tapered N/A 1 1/2" NPT N/A 2" Hex N/A 1 17/32" dia N/A Buna-N N/A None N/A 50 PSI N/A 303 Stainless Steel
B4763-08B N/A Tapered N/A 2" NPT N/A 2 1/2" Hex N/A 1 31/32" dia N/A Buna-N N/A None N/A 50 PSI N/A 303 Stainless Steel
B4763-12B N/A Tapered N/A 3/8" NPT N/A 3/4" Hex N/A 15/32" dia N/A Buna-N N/A Stainless Steel N/A 125 PSI N/A 303 Stainless Steel
B4763-13B N/A Tapered N/A 1/2" NPT N/A 15/16" Hex N/A 19/32" dia N/A Buna-N N/A Stainless Steel N/A 125 PSI N/A 303 Stainless Steel
B4763-14B N/A Tapered N/A 3/4" NPT N/A 1 1/16" Hex N/A 25/32" dia N/A Buna-N N/A Stainless Steel N/A 125 PSI N/A 303 Stainless Steel
B4763-15B N/A Tapered N/A 1" NPT N/A 1 3/8" Hex N/A 1" dia N/A Buna-N N/A Stainless Steel N/A 100 PSI N/A 303 Stainless Steel
B4763-16B N/A Tapered N/A 1 1/4" NPT N/A 1 3/4" Hex N/A 1 19/64" dia N/A Buna-N N/A Stainless Steel N/A 50 PSI N/A 303 Stainless Steel
B4763-17B N/A Tapered N/A 1 1/2" NPT N/A 2" Hex N/A 1 17/32" dia N/A Buna-N N/A Stainless Steel N/A 50 PSI N/A 303 Stainless Steel
B4763-18B N/A Tapered N/A 2" NPT N/A 2 1/2" Hex N/A 1 31/32" dia N/A Buna-N N/A Stainless Steel N/A 50 PSI N/A 303 Stainless Steel
B4763-01V N/A Tapered N/A 1/4" NPT N/A 5/8" Hex N/A 5/16" dia N/A Viton N/A None N/A 125 PSI N/A 303 Stainless Steel
B4763-02V N/A Tapered N/A 3/8" NPT N/A 3/4" Hex N/A 15/32" dia N/A Viton N/A None N/A 125 PSI N/A 303 Stainless Steel
B4763-03V N/A Tapered N/A 1/2" NPT N/A 15/16" Hex N/A 19/32" dia N/A Viton N/A None N/A 125 PSI N/A 303 Stainless Steel
B4763-04V N/A Tapered N/A 3/4" NPT N/A 1 1/16" Hex N/A 25/32" dia N/A Viton N/A None N/A 125 PSI N/A 303 Stainless Steel
B4763-05V N/A Tapered N/A 1" NPT N/A 1 3/8" Hex N/A 1" dia N/A Viton N/A None N/A 100 PSI N/A 303 Stainless Steel
B4763-06V N/A Tapered N/A 1 1/4" NPT N/A 1 3/4" Hex N/A 1 19/64" dia N/A Viton N/A None N/A 50 PSI N/A 303 Stainless Steel
B4763-07V N/A Tapered N/A 1 1/2" NPT N/A 2" Hex N/A 1 17/32" dia N/A Viton N/A None N/A 50 PSI N/A 303 Stainless Steel
B4763-08V N/A Tapered N/A 2" NPT N/A 2 1/2" Hex N/A 1 31/32" dia N/A Viton N/A None N/A 50 PSI N/A 303 Stainless Steel
B4763-12V N/A Tapered N/A 3/8" NPT N/A 3/4" Hex N/A 15/32" dia N/A Viton N/A Stainless Steel N/A 125 PSI N/A 303 Stainless Steel
B4763-13V N/A Tapered N/A 1/2" NPT N/A 15/16" Hex N/A 19/32" dia N/A Viton N/A Stainless Steel N/A 125 PSI N/A 303 Stainless Steel
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