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503992-403 — REEL,SHOULDER HARNESS,INERTIA LO

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

503992-403: REEL,SHOULDER HARNESS,INERTIA LO.

REEL,SHOULDER HARNESS,INERTIA LO. Key specifications include special_features: FOR CRASHWORTHY PILOT AND COPILOT SEATS, part_name_assigned_by_controlling_agency: REEL EQUIPPED. This part is cataloged in the U.S.

Government catalog under NSN 1680-01-708-3548, 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
503992-403
NSN: 1680-01-708-3548
FSC: 1680 — Miscellaneous Aircraft Accessories and Components
CAGE: 35FB9 — AMSAFE, INC. DIV AMSAFE (USA)
SPECIFICATIONS
special_featuresFOR CRASHWORTHY PILOT AND COPILOT SEATS
part_name_assigned_by_controlling_agencyREEL EQUIPPED
NSN1680-01-708-3548
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available REEL,SHOULDER HARNESS,INERTIA LO TITLE COMPONENT PN 503992-403 MFR REEL,SHOULDER HARNESS,
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESFOR CRASHWORTHY PILOT AND COPILOT SEATS
PART NAME ASSIGNED BY CONTROLLING AGENCYREEL EQUIPPED
OTHER ITEMS IN FSC 1680 — Miscellaneous Aircraft Accessories and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1680-00-000-0144 1680-00-001-1401 1680-00-001-1402 1680-00-001-1403 1680-00-001-1404 1680-00-001-1730 1680-00-001-1731 1680-00-001-1736
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 503992-403?
503992-403 is a REEL,SHOULDER HARNESS,INERTIA LO.
What is the NSN for 503992-403?
503992-403 is cataloged in the U.S. Government catalog under NSN 1680-01-708-3548. 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.