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Technical Data Sheet
YA287-1020SUB2PT1 ✓ 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 SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL SPRING, seal_width: 0.312 INCHES NOMINAL IN, construction: SOLID, housing_bore_diameter: 3.250 INCHES NOMINAL IN, accommodated_shaft_diameter: 2.625 INCHES NOMINAL IN, cross-sectional_shape_style: SINGLE LIP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-298-0534, 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
YA287-1020SUB2PT1
NSN: 5330-00-298-0534
FSC: 5330
CAGE: 94144 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
materialSTEEL SPRING
seal_width0.312 INCHES NOMINAL IN
constructionSOLID
housing_bore_diameter3.250 INCHES NOMINAL IN
accommodated_shaft_diameter2.625 INCHES NOMINAL IN
cross-sectional_shape_styleSINGLE LIP
NSN5330-00-298-0534
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: YA287-1020SUB2PT1 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
HOUSING BORE DIAMETER: 3.250 INCHES NOMINAL IN
CONSTRUCTION: SOLID
MATERIAL: STEEL SPRING
CROSS-SECTIONAL SHAPE STYLE: SINGLE LIP
SEAL WIDTH: 0.312 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER: 2.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER3.250 INCHES NOMINAL IN
CONSTRUCTIONSOLID
MATERIALSTEEL SPRING
CROSS-SECTIONAL SHAPE STYLESINGLE LIP
SEAL WIDTH0.312 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER2.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
T57766Interchangeable
interchangeable cross-reference
interchangeable
4374Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-26/4Interchangeable
interchangeable cross-reference
interchangeable
28160-033Interchangeable
interchangeable cross-reference
interchangeable
68338Interchangeable
interchangeable cross-reference
interchangeable
67540Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is YA287-1020SUB2PT1?
YA287-1020SUB2PT1 is a SEAL,PLAIN.
What parts can replace YA287-1020SUB2PT1?
There are 11 known substitutes for YA287-1020SUB2PT1: T57766, 4374, MIL-PRF-26/4 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for YA287-1020SUB2PT1?
YA287-1020SUB2PT1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-298-0534. This indicates validated use in U.S. government and defense supply chains.
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