The O-Ring, cataloged under National Stock Number 5331-01-276-8443, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Greenfield Compression Inc.. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Greenfield Compression Inc. (CAGE 62618) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-276-8443 |
| Primary Part Number | H9-723-74-3303 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Greenfield Compression 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 |
|---|---|
| H9-723-74-3303 PRIMARY | Greenfield Compression Inc. (USA) |
| Reference | Meaning |
|---|---|
| 9-723-74-3303 | 5/9 Secondary reference Greenfield Compression Inc. |
NSN 5331-01-276-8443 is a O-Ring, manufactured by Greenfield Compression Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-276-8443 has 1 manufacturer part number on file: H9-723-74-3303 (Greenfield Compression 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.