The O-Ring, cataloged under National Stock Number 5331-00-104-7960, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-104-7960 |
| Primary Part Number | 6864643 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.103 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.238 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| KB16204 | Rolls-Royce Airlines (GBR) |
| 6864643 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 6864643 | Rolls-Royce Airlines (GBR) |
| Reference | Meaning |
|---|---|
| 99-101-6163 | 6/9 Informative reference only U.S. Government activity |
| 99-101-6163 | 6/9 Informative reference only Nato Stock Number Potential Interchangeability Link |
NSN 5331-00-104-7960 is a O-Ring, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-104-7960 has 3 manufacturer part numbers on file: KB16204 (Rolls-Royce Airlines), 6864643 (Allison Transmission Inc Dba Allison Transmission, Inc), 6864643 (Rolls-Royce Airlines).
Key specifications for 6864643: Cross-Sectional Height: 0.103 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Center Hole Diameter: 0.238 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.