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Technical Data Sheet
YB287-1020P5 ✓ 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: 0.500 INCHES NOMINAL IN, temp_rating: -40.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF, construction: SOLID, fsc_application_data: RADAR SET,NONAIRBORNE,EXCEPT FIRE CONTROL AND GUIDED MISSILE, housing_bore_diameter: 3.938 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-297-0625, 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
YB287-1020P5
NSN: 5330-00-297-0625
FSC: 5330
CAGE: 3B150 — RAYTHEON COMPANY DBA RAYTHEON CO (USA)
SPECIFICATIONS
materialSTEEL SPRING
seal_width0.500 INCHES NOMINAL IN
temp_rating-40.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
constructionSOLID
fsc_application_dataRADAR SET,NONAIRBORNE,EXCEPT FIRE CONTROL AND GUIDED MISSILE
housing_bore_diameter3.938 INCHES NOMINAL IN
accommodated_shaft_diameter2.938 INCHES NOMINAL IN
cross-sectional_shape_styleSINGLE LIP
material_document_and_classificationMIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT
NSN5330-00-297-0625
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: YB287-1020P5 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: 0.500 INCHES NOMINAL IN
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT
CROSS-SECTIONAL SHAPE STYLE: SINGLE LIP
ACCOMMODATED SHAFT DIAMETER: 2.938 INCHES NOMINAL IN
FSC APPLICATION DATA: RADAR SET,NONAIRBORNE,EXCEPT FIRE CONTROL AND GUIDED MISSILE
CONSTRUCTION: SOLID
TECHNICAL CHARACTERISTICS (FLIS)
SEAL WIDTH0.500 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
MATERIALSTEEL SPRING
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT
CROSS-SECTIONAL SHAPE STYLESINGLE LIP
ACCOMMODATED SHAFT DIAMETER2.938 INCHES NOMINAL IN
FSC APPLICATION DATARADAR SET,NONAIRBORNE,EXCEPT FIRE CONTROL AND GUIDED MISSILE
CONSTRUCTIONSOLID
TEMP RATING-40.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
HOUSING BORE DIAMETER3.938 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
60AT45Interchangeable
interchangeable cross-reference
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S443QInterchangeable
interchangeable cross-reference
interchangeable
V4350XInterchangeable
interchangeable cross-reference
interchangeable
25954-1-42Interchangeable
interchangeable cross-reference
interchangeable
418-3Interchangeable
interchangeable cross-reference
interchangeable
2A219TVIT750HMT25T25T25Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is YB287-1020P5?
YB287-1020P5 is a SEAL,PLAIN.
What parts can replace YB287-1020P5?
There are 10 known substitutes for YB287-1020P5: 60AT45, S443Q, V4350X and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for YB287-1020P5?
YB287-1020P5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-297-0625. This indicates validated use in U.S. government and defense supply chains.
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