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Technical Data Sheet
PartsTable / COMPONENT / 5X287
5X287 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The FELT,MECHANICAL,PREFORMED is a the manufacturer industrial component. Key specifications include material: WOOL AND RUBBER OVERALL, outside_diameter: 1.888 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 0.850 INCHES MINIMUM AND 0.855 INCHES MAXIMUM IN, cross-sectional_thickness: 0.438 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-285-5121, 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
5X287
NSN: 5330-00-285-5121
FSC: 5330
CAGE: 65282 — WHITE MOTOR CORP (USA)
SPECIFICATIONS
materialWOOL AND RUBBER OVERALL
outside_diameter1.888 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter0.850 INCHES MINIMUM AND 0.855 INCHES MAXIMUM IN
cross-sectional_thickness0.438 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-285-5121
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5X287 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
•
MATERIAL: WOOL OVERALL
•
OUTSIDE DIAMETER: 1.188 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.163 INCHES NOMINAL IN
•
CROSS-SECTIONAL WIDTH: 0.438 INCHES NOMINAL IN
•
APERTURE DIAMETER: 0.873 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALWOOL OVERALL
OUTSIDE DIAMETER1.188 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.163 INCHES NOMINAL IN
CROSS-SECTIONAL WIDTH0.438 INCHES NOMINAL IN
APERTURE DIAMETER0.873 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
MILT7928Interchangeable
interchangeable cross-reference
interchangeable
205019-57Interchangeable
interchangeable cross-reference
interchangeable
10630025-33Interchangeable
interchangeable cross-reference
interchangeable
50210Interchangeable
interchangeable cross-reference
interchangeable
322125Interchangeable
interchangeable cross-reference
interchangeable
M175Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5X287?
5X287 is a FELT,MECHANICAL,PREFORMED.
What parts can replace 5X287?
There are 18 known substitutes for 5X287: MILT7928, 205019-57, 10630025-33 and 15 more. Substitute compatibility should be verified for your specific system.
Is 5X287 still available?
5X287 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026