The O-Ring, cataloged under National Stock Number 5331-01-563-7628, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Casappa Corp. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Casappa Corp (CAGE 027P6) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-563-7628 |
| Primary Part Number | 37990000 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Casappa Corp |
| Status | ACTIVE |
| 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 |
|---|---|
| 799139AF P0S 19 | Casappa Corp (USA) |
| 37990000 PRIMARY | Casappa Corp (USA) |
NSN 5331-01-563-7628 is a O-Ring, manufactured by Casappa Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-563-7628 has 2 manufacturer part numbers on file: 799139AF P0S 19 (Casappa Corp), 37990000 (Casappa Corp).
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.