The O-Ring, cataloged under National Stock Number 5331-01-633-4770, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Michigan Wheel Operations, Llc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-633-4770 |
| Primary Part Number | 950746 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Michigan Wheel Operations, Llc |
| Status | ACTIVE |
| Material Document and Classification | BUNA-N MFR REF SINGLE MATERIAL RESPONSE |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 950746 PRIMARY | Michigan Wheel Operations, Llc (USA) |
NSN 5331-01-633-4770 is a O-Ring, manufactured by Michigan Wheel Operations, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-633-4770 has 1 manufacturer part number on file: 950746 (Michigan Wheel Operations, Llc).
Key specifications for 950746: Material Document and Classification: BUNA-N MFR REF SINGLE MATERIAL RESPONSE; Special Features: PDCN SE0953; NEXT HIGHER ASSEMBLY 2010-01-627-9761, PROPELLER, MARINE, P/N 531914; Part Name Assigned by Controlling Agency: O-RING FORWARD END FAIRWATER CAP; End Item Identification: SENTINEL CLASS FAST RESPONSE CUTTER B (FRC-B). 2 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.