NSN 5331-01-450-1271 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-450-1271. Manufacturer of record part number: 400A-28.
Also searched as5331-01-450-1271 ·
5331014501271 ·
NIIN 014501271 ·
01-450-1271 ·
FSC 5331 O-ring · CAGE 55242 · 400A-28
Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
1 manufacturer part number on file
Manufacturer of record: Isometrics Inc
Identification
NSN: 5331-01-450-1271
NIIN: 014501271
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: 400A-28
Manufacturer: Isometrics Inc
General Description
The O-Ring, cataloged under National Stock Number 5331-01-450-1271, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Isometrics Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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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 5331-01-450-1271?
NSN 5331-01-450-1271 is a O-Ring, manufactured by Isometrics Inc, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-01-450-1271?
NSN 5331-01-450-1271 has 1 manufacturer part number on file: 400A-28 (Isometrics Inc).
What are the specifications of 400A-28?
Key specifications for 400A-28: Cross-Sectional Height: 0.375 INCHES NOMINAL IN; Center Hole Diameter: 25.000 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 3 specifications are documented in the U.S. Government catalog.
Is NSN 5331-01-450-1271 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.