The O-Ring, cataloged under National Stock Number 5331-01-181-9336, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Parker-Hannifin Corp Div O-Ring Division (CAGE 02697); Federal-Mogul Corp Government Sales Dept (CAGE 01212); Parco, Llc (CAGE 77308); Parker Hannifin Corporation Div O-Ring Division (CAGE 25184) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-181-9336 |
| Primary Part Number | S8990-033 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| 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 |
|---|---|
| S8990-033 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| S8990-033 | Federal-Mogul Corp Government Sales Dept (USA) |
| S8990-033 | Parco, Llc (USA) |
| S8990-033 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| S8990-033 | 5/2 Secondary reference U.S. Government activity |
| S8990-033 | 3/2 Design control — primary reference U.S. Government activity |
| S8990-033 | 5/2 Secondary reference U.S. Government activity |
| S8990-033 | 5/9 Secondary reference Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp |
NSN 5331-01-181-9336 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-181-9336 has 4 manufacturer part numbers on file: S8990-033 (Parker-Hannifin Corp Div O-Ring Division), S8990-033 (Federal-Mogul Corp Government Sales Dept), S8990-033 (Parco, Llc), S8990-033 (Parker Hannifin Corporation Div O-Ring Division).
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.