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471763 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

471763: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: STEEL CASE, seal_width: 0.250 INCHES NOMINAL IN, housing_bore_diameter: 2.000 INCHES NOMINAL IN, end_item_identification: B-52 AIRCRAFT, accommodated_shaft_diameter: 1.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-478-4143, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
471763
NSN: 5330-01-478-4143
FSC: 5330 — Packing and Gasket Materials
CAGE: 5H683 — FLECK BEARING CO (USA)
SPECIFICATIONS
materialSTEEL CASE
seal_width0.250 INCHES NOMINAL IN
housing_bore_diameter2.000 INCHES NOMINAL IN
end_item_identificationB-52 AIRCRAFT
accommodated_shaft_diameter1.125 INCHES NOMINAL IN
NSN5330-01-478-4143
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 471763 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SEAL WIDTH: 0.250 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 2.000 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 1.125 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.250 INCHES NOMINAL IN
HOUSING BORE DIAMETER2.000 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER1.125 INCHES NOMINAL IN
END ITEM IDENTIFICATIONB-52 AIRCRAFT
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
MATERIALSTEEL CASE
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 1
40160SReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 471763?
471763 is a SEAL,PLAIN ENCASED.
What parts can replace 471763?
There is 1 known substitute for 471763: 40160S. Substitute compatibility should be verified for your specific system.
What is the NSN for 471763?
471763 is cataloged in the U.S. Government catalog under NSN 5330-01-478-4143. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.