The O-Ring, cataloged under National Stock Number 5331-01-659-5668, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hutchinson Industries, Inc Div Defense and Industry. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Hutchinson Industries, Inc Div Defense and Industry (CAGE 62161); Oshkosh Defense Llc (CAGE 75Q65) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-659-5668 |
| Primary Part Number | 50060 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hutchinson Industries, Inc Div Defense and Industry |
| 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 |
|---|---|
| 50060 PRIMARY | Hutchinson Industries, Inc Div Defense and Industry (USA) |
| 4143125 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 12604120 | 5/9 Secondary reference Oshkosh Defense Llc |
| 12604120 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 4004567 | 5/9 Secondary reference Oshkosh Defense Llc |
NSN 5331-01-659-5668 is a O-Ring, manufactured by Hutchinson Industries, Inc Div Defense and Industry, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-659-5668 has 2 manufacturer part numbers on file: 50060 (Hutchinson Industries, Inc Div Defense and Industry), 4143125 (Oshkosh Defense Llc).
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.