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21953-3 — FASTENER,POSITIVE LOCK

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

21953-3: FASTENER,POSITIVE LOCK.

The FASTENER,POSITIVE LOCK is a the manufacturer industrial component. Key specifications include material: UNABLE TO DECODE, material_document_and_classification: UNABLE TO DECODE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-067-6899, 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
21953-3
NSN: 5340-01-067-6899
NIINs: 010676899, 011846220
FSC: 5340 — Hardware, Commercial
CAGE: 81860 — HUTCHINSON AEROSPACE & INDUSTRY, INC. DBA BARRY WRIGHT CORP (USA)
SPECIFICATIONS
materialUNABLE TO DECODE
material_document_and_classificationUNABLE TO DECODE
NSN5340-01-067-6899
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21953-3 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 DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
MATERIAL: UNABLE TO DECODE
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
MATERIALUNABLE TO DECODE
SUBSTITUTES & CROSS-REFERENCES 1
HY000196-002Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21953-3?
21953-3 is a FASTENER,POSITIVE LOCK.
What parts can replace 21953-3?
There is 1 known substitute for 21953-3: HY000196-002. Substitute compatibility should be verified for your specific system.
What is the NSN for 21953-3?
21953-3 is cataloged in the U.S. Government catalog under NSN 5340-01-067-6899. This indicates validated use in U.S. government and defense supply chains.
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