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480424 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

480424: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: ALUMINUM ALLOY, design_type: SOLID, end_diameter: 0.4800 INCHES MINIMUM AND 0.4900 INCHES MAXIMUM IN, bore_diameter: 0.3670 INCHES MINIMUM AND 0.3710 INCHES MAXIMUM IN, overall_height: 0.6300 INCHES MINIMUM AND 0.6700 INCHES MAXIMUM IN, special_features: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-940-9954, 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
480424
NSN: 5340-00-940-9954
FSC: 5340 — Hardware, Commercial
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
design_typeSOLID
end_diameter0.4800 INCHES MINIMUM AND 0.4900 INCHES MAXIMUM IN
bore_diameter0.3670 INCHES MINIMUM AND 0.3710 INCHES MAXIMUM IN
overall_height0.6300 INCHES MINIMUM AND 0.6700 INCHES MAXIMUM IN
special_featuresNOT CASEHARDENED
style_designatorSEAT
first_step_length0.0400 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM IN
first_step_diameter0.8200 INCHES MINIMUM AND 0.8400 INCHES MAXIMUM IN
second_end_diameter0.5900 INCHES MINIMUM AND 0.6100 INCHES MAXIMUM IN
fsc_application_dataENGINE,FUEL SYSTEM,ACFT
distance_from_end_to_first_step0.3100 INCHES MINIMUM AND 0.3300 INCHES MAXIMUM IN
NSN5340-00-940-9954
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 480424 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
•
FSC APPLICATION DATA: ENGINE,FUEL SYSTEM,ACFT
•
FIRST STEP DIAMETER: 0.8200 INCHES MINIMUM AND 0.8400 INCHES MAXIMUM IN
•
END DIAMETER: 0.4800 INCHES MINIMUM AND 0.4900 INCHES MAXIMUM IN
•
SECOND END DIAMETER: 0.5900 INCHES MINIMUM AND 0.6100 INCHES MAXIMUM IN
•
DISTANCE FROM END TO FIRST STEP: 0.3100 INCHES MINIMUM AND 0.3300 INCHES MAXIMUM IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.6300 INCHES MINIMUM AND 0.6700 INCHES MAXIMUM IN
FSC APPLICATION DATAENGINE,FUEL SYSTEM,ACFT
FIRST STEP DIAMETER0.8200 INCHES MINIMUM AND 0.8400 INCHES MAXIMUM IN
END DIAMETER0.4800 INCHES MINIMUM AND 0.4900 INCHES MAXIMUM IN
SECOND END DIAMETER0.5900 INCHES MINIMUM AND 0.6100 INCHES MAXIMUM IN
DISTANCE FROM END TO FIRST STEP0.3100 INCHES MINIMUM AND 0.3300 INCHES MAXIMUM IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
FIRST STEP LENGTH0.0400 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM IN
SPECIAL FEATURESNOT CASEHARDENED
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

No substitute or cross-reference records for this part.

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 480424?
480424 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 480424?
480424 is cataloged in the U.S. Government catalog under NSN 5340-00-940-9954. 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.