The O-Ring, cataloged under National Stock Number 5331-00-333-8121, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Kelly Manufacturing Company. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-333-8121 |
| Primary Part Number | C61905 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Kelly Manufacturing Company |
| Status | ACTIVE |
| Cross-Sectional Height | 0.173 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| C61905 PRIMARY | Kelly Manufacturing Company (USA) |
| Reference | Meaning |
|---|---|
| C61905 | 5/9 Secondary reference Allen R C Co Inc Cash Register Div |
| C61905 | 5/9 Secondary reference Allen R C Instruments Inc |
NSN 5331-00-333-8121 is a O-Ring, manufactured by Kelly Manufacturing Company, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-333-8121 has 1 manufacturer part number on file: C61905 (Kelly Manufacturing Company).
Key specifications for C61905: Cross-Sectional Height: 0.173 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC. 2 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.