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1280847 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1280847: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include design_type: SOLID, end_diameter: 0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN, overall_height: 0.6200 INCHES MINIMUM AND 0.6300 INCHES MAXIMUM IN, first_step_diameter: 0.7130 INCHES MINIMUM AND 0.7290 INCHES MAXIMUM IN, distance_from_end_to_first_step: 0.3650 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-162-9329, 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
1280847
NSN: 5340-00-162-9329
FSC: 5340 — Hardware, Commercial
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
design_typeSOLID
end_diameter0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
overall_height0.6200 INCHES MINIMUM AND 0.6300 INCHES MAXIMUM IN
special_features0.062 IN. BY 45 DEG CHAMFER AT SMALL END,0.062 IN. CORNER RADIUS AT STEP,0.375 IN. DRILL POINT INDENTATION CTR OF BOTTOM;NOT CASEHARDENED IN
first_step_diameter0.7130 INCHES MINIMUM AND 0.7290 INCHES MAXIMUM IN
distance_from_end_to_first_step0.3650 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN
NSN5340-00-162-9329
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1280847 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
•
FIRST STEP DIAMETER: 0.7130 INCHES MINIMUM AND 0.7290 INCHES MAXIMUM IN
•
END DIAMETER: 0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
•
DISTANCE FROM END TO FIRST STEP: 0.3650 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN
•
DESIGN TYPE: SOLID
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.6200 INCHES MINIMUM AND 0.6300 INCHES MAXIMUM IN
FIRST STEP DIAMETER0.7130 INCHES MINIMUM AND 0.7290 INCHES MAXIMUM IN
END DIAMETER0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
DISTANCE FROM END TO FIRST STEP0.3650 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN
DESIGN TYPESOLID
SPECIAL FEATURES0.062 IN. BY 45 DEG CHAMFER AT SMALL END,0.062 IN. CORNER RADIUS AT STEP,0.375 IN. DRILL POINT INDENTATION CTR OF BOTTOM;NOT CASEHARDENED IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 2
416X5Reference document
Same NSN cross-reference
Reference document — Secondary reference
RENG416X5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 1280847?
1280847 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace 1280847?
There are 2 known substitutes for 1280847: 416X5, RENG416X5. Substitute compatibility should be verified for your specific system.
What is the NSN for 1280847?
1280847 is cataloged in the U.S. Government catalog under NSN 5340-00-162-9329. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.