NSN 5331-00-251-4401 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-251-4401. Manufacturer of record part number: A2916BT.
The O-Ring, cataloged under National Stock Number 5331-00-251-4401, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
C/1Advisory reference — outside the item-of-supply concept
Zf Industrieantriebe Witten Gmbh
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 5331-00-251-4401?
NSN 5331-00-251-4401 is a O-Ring, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-00-251-4401?
NSN 5331-00-251-4401 has 2 manufacturer part numbers on file: A2916BT (Twin Disc (pacific) Pty Ltd), A2916BT (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
What are the specifications of A2916BT?
Key specifications for A2916BT: Cross-Sectional Height: 0.094 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN; Center Hole Diameter: 0.750 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC. 3 specifications are documented in the U.S. Government catalog.
Is NSN 5331-00-251-4401 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.