The O-Ring, cataloged under National Stock Number 5331-01-428-3355, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Warren Rupp, Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5331-01-428-3355 |
| Primary Part Number | 560.033.360 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Warren Rupp, Inc |
| Status | ACTIVE |
| Material | RUBBER BUTADIENE NITRILE |
| 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 |
|---|---|
| 560.033.360 PRIMARY | Warren Rupp, Inc (USA) |
| 560.033.360 | Axflow Sa (FRA) |
| Reference | Meaning |
|---|---|
| 560-033-360 | 5/9 Secondary reference Warren Rupp-Houdaille Inc Sub of Houdaille Industries Inc |
NSN 5331-01-428-3355 is a O-Ring, manufactured by Warren Rupp, Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-428-3355 has 2 manufacturer part numbers on file: 560.033.360 (Warren Rupp, Inc), 560.033.360 (Axflow Sa).
Key specifications for 560.033.360: End Item Identification: USED ON ALL MODEL WARREN-RUPP PUMPS; Material: RUBBER BUTADIENE NITRILE. 1 specification is 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.