The O-Ring, cataloged under National Stock Number 5331-01-221-0556, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Us Army Aviation and Missile Command (CAGE 18876) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-221-0556 |
| Primary Part Number | 12293888-1 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Us Army Aviation and Missile Command |
| 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 |
|---|---|
| 12293888-1 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 12293888-1 | 5/1 Secondary reference U.S. Government activity |
| 12293888-1 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 12293888-1 | 5/1 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5331-01-221-0556 is a O-Ring, manufactured by Us Army Aviation and Missile Command, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-221-0556 has 1 manufacturer part number on file: 12293888-1 (Us Army Aviation and Missile Command).
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.