The O-Ring, cataloged under National Stock Number 5331-01-378-7345, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Milwaukee Cylinder Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Milwaukee Cylinder Inc (CAGE 15515) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-378-7345 |
| Primary Part Number | SN3920389 ITEM 20 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Milwaukee Cylinder 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 |
|---|---|
| SN3920389 ITEM 20 PRIMARY | Milwaukee Cylinder Inc (USA) |
| Reference | Meaning |
|---|---|
| SN3920389 ITEM2 | C/1 Advisory reference — outside the item-of-supply concept Milwaukee Cylinder Inc |
NSN 5331-01-378-7345 is a O-Ring, manufactured by Milwaukee Cylinder Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-378-7345 has 1 manufacturer part number on file: SN3920389 ITEM 20 (Milwaukee Cylinder Inc).
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.