The O-Ring, cataloged under National Stock Number 5331-01-214-7720, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Buck & Knobby Equipment Co Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Buck & Knobby Equipment Co Inc (CAGE 451M4) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-214-7720 |
| Primary Part Number | 4700814139 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Buck & Knobby Equipment Co Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 4700814139 PRIMARY | Buck & Knobby Equipment Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 00520861 | 3/9 Design control — primary reference U.S. Government activity |
| T10-0164 | 5/9 Secondary reference U.S. Government activity |
NSN 5331-01-214-7720 is a O-Ring, manufactured by Buck & Knobby Equipment Co Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-214-7720 has 1 manufacturer part number on file: 4700814139 (Buck & Knobby Equipment Co Inc).
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.