The O-Ring, cataloged under National Stock Number 5331-01-318-1905, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Imi Cash Valve Inc. The record lists 2 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 | Imi Cash Valve Inc (CAGE 71342) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-318-1905 |
| Primary Part Number | 18278 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Imi Cash Valve 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 |
|---|---|
| 18278 PRIMARY | Imi Cash Valve Inc (USA) |
| 17862 ITEM 13 | Imi Cash Valve Inc (USA) |
NSN 5331-01-318-1905 is a O-Ring, manufactured by Imi Cash Valve Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-318-1905 has 2 manufacturer part numbers on file: 18278 (Imi Cash Valve Inc), 17862 ITEM 13 (Imi Cash Valve Inc).
1 possible match (shared part number, not a government interchangeability claim): 2040-01-333-1826. 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.