PartsTable
Technical Data Sheet
Download PDF

406521 — PIN,SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

406521: PIN,SPRING.

The PIN,SPRING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-00-166-0054, 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
406521
NSN: 5330-00-166-0054
NIINs: 001660054, 013515468, 016548428
FSC: 5330 — Packing and Gasket Materials
CAGE: 57526 — FORD MOTOR COMPANY (USA)
SPECIFICATIONS
Part Number406521
NSN5330-00-166-0054
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 406521 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
SUBSTITUTES & CROSS-REFERENCES 2
5410MKReference document
Same NSN cross-reference
Reference document — Secondary reference
18765Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 406521?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 406521?
406521 is a PIN,SPRING.
What parts can replace 406521?
There are 2 known substitutes for 406521: 5410MK, 18765. Substitute compatibility should be verified for your specific system.
What is the NSN for 406521?
406521 is cataloged in the U.S. Government catalog under NSN 5330-00-166-0054. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 406521