The O-Ring, cataloged under National Stock Number 5331-01-169-3172, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Kaydon Custom Filtration Corporation. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | General Dynamics Land Systems Canadacorp (CAGE 56161); Kaydon Custom Filtration Corporation (CAGE 53964) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-169-3172 |
| Primary Part Number | A619020 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Kaydon Custom Filtration Corporation |
| 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 |
|---|---|
| 10512516-56161 | General Dynamics Land Systems Canadacorp (CAN) |
| 10512516 | General Dynamics Land Systems Canadacorp (CAN) |
| A619020 PRIMARY | Kaydon Custom Filtration Corporation (USA) |
NSN 5331-01-169-3172 is a O-Ring, manufactured by Kaydon Custom Filtration Corporation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-169-3172 has 3 manufacturer part numbers on file: 10512516-56161 (General Dynamics Land Systems Canadacorp), 10512516 (General Dynamics Land Systems Canadacorp), A619020 (Kaydon Custom Filtration Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-288-3600. Verify interchangeability with system specifications before substitution.
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.