The O-Ring, cataloged under National Stock Number 5331-01-437-3461, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Cfm International Inc Dba Cfm International. The record lists 1 manufacturer part number 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 | Cfm International Inc Dba Cfm International (CAGE 58828) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-437-3461 |
| Primary Part Number | 1338M79P01 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Cfm International Inc Dba Cfm International |
| 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 |
|---|---|
| 1338M79P01 PRIMARY | Cfm International Inc Dba Cfm International (USA) |
NSN 5331-01-437-3461 is a O-Ring, manufactured by Cfm International Inc Dba Cfm International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-437-3461 has 1 manufacturer part number on file: 1338M79P01 (Cfm International Inc Dba Cfm International).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-494-5821. 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.