The O-Ring, cataloged under National Stock Number 5331-01-566-5195, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Ems Technologies Inc Div Defense & Space Systems. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-566-5195 |
| Primary Part Number | 171021-3 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Ems Technologies Inc Div Defense & Space Systems |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 171021-3 PRIMARY | Ems Technologies Inc Div Defense & Space Systems (USA) |
NSN 5331-01-566-5195 is a O-Ring, manufactured by Ems Technologies Inc Div Defense & Space Systems, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-566-5195 has 1 manufacturer part number on file: 171021-3 (Ems Technologies Inc Div Defense & Space Systems).
Key specifications for 171021-3: Part Name Assigned by Controlling Agency: O-RING; End Item Identification: F-22 RAPTOR. 0 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.
NSN 5331-01-566-5195 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.