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28877N ITEM 12 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

28877N ITEM 12: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. This part is cataloged in the U.S. Government catalog under NSN 5340-01-215-1890, 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
28877N ITEM 12
NSN: 5340-01-215-1890
FSC: 5340 — Hardware, Commercial
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
Part Number28877N ITEM 12
NSN5340-01-215-1890
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 28877N ITEM 12 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 1
42239Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 28877N ITEM 12?
28877N ITEM 12 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace 28877N ITEM 12?
There is 1 known substitute for 28877N ITEM 12: 42239. Substitute compatibility should be verified for your specific system.
What is the NSN for 28877N ITEM 12?
28877N ITEM 12 is cataloged in the U.S. Government catalog under NSN 5340-01-215-1890. This indicates validated use in U.S. government and defense supply chains.
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