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10159621 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include end_item_identification: ENGINE MODEL F-404. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-051-0997, 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
10159621
NSN: 5340-01-051-0997
FSC: 5340
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
end_item_identificationENGINE MODEL F-404
NSN5340-01-051-0997
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 10159621 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
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD SIZE: 0.3125 INCHES IN
•
THREAD QUANTITY PER INCH: 18
•
THREAD LENGTH: 0.625 INCHES NOMINAL IN
•
SHAPE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESNYLON LOCKING ELEMENT IN THREAD; ROUND KNURLED KNOB ONE END 0.630 IN. DIA; 0.375 IN. FROM END OF KNURLED KNOB TO START OF BODY THREAD; PLUNGER SLIGHTLY TAPERED AT END IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.3125 INCHES IN
THREAD QUANTITY PER INCH18
OVERALL LENGTH1.187 INCHES NOMINAL IN
THREAD LENGTH0.625 INCHES NOMINAL IN
SHAPEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
AMS-QQ-A-200/9Interchangeable
interchangeable cross-reference
interchangeable
ASTM B221Interchangeable
interchangeable cross-reference
interchangeable
33811Interchangeable
interchangeable cross-reference
interchangeable
SL612CInterchangeable
interchangeable cross-reference
interchangeable
SL612Interchangeable
interchangeable cross-reference
interchangeable
QQA200-11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10159621?
10159621 is a SEAT,VALVE.
What parts can replace 10159621?
There are 21 known substitutes for 10159621: AMS-QQ-A-200/9, ASTM B221, 33811 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10159621?
10159621 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-051-0997. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026