NSN 5331-00-202-3976 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-202-3976. Manufacturer of record part number: 557S2.
Also searched as5331-00-202-3976 ·
5331002023976 ·
NIIN 002023976 ·
00-202-3976 ·
FSC 5331 O-ring · CAGE 2A659 · 557S2
The O-Ring, cataloged under National Stock Number 5331-00-202-3976, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Airmotive Carburetor. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
No interchangeability data on file.
Other items in FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971
O-RING
5331-00-001-1979
O-RING
5331-00-001-3904
O-RING
5331-00-001-3905
O-RING
5331-00-001-3906
O-RING
5331-00-001-3908
O-RING
5331-00-001-3923
O-RING
5331-00-001-3924
O-RING
Frequently Asked Questions
What is NSN 5331-00-202-3976?
NSN 5331-00-202-3976 is a O-Ring, manufactured by Airmotive Carburetor, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-00-202-3976?
NSN 5331-00-202-3976 has 2 manufacturer part numbers on file: 557S2 (Airmotive Carburetor), 557S2 (Aviall Services, Inc.).
What are the specifications of 557S2?
Key specifications for 557S2: Cross-Sectional Height: 0.064 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC. 2 specifications are documented in the U.S. Government catalog.
Is NSN 5331-00-202-3976 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.