The O-Ring, cataloged under National Stock Number 5331-01-533-9368, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Service Filtration Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-533-9368 |
| Primary Part Number | 22-0340 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Service Filtration Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 22-0340 | Service Filtration Corp (USA) |
| Reference | Meaning |
|---|---|
| 22-0340 | 5/9 Secondary reference Lutz Sales Company Inc. |
| 2-437 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 22-0340 | 3/9 Design control — primary reference Serfilco |
NSN 5331-01-533-9368 is a O-Ring, manufactured by Service Filtration Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-533-9368 has 1 manufacturer part number on file: 22-0340 (Service Filtration Corp).
Key specifications for 22-0340: Part Name Assigned by Controlling Agency: INDUSTRIAL O-RING STATIC SEALS, 103.5 BAR (1500 PSI) MAX; End Item Identification: 3501-01-527-2209. 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.
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.