The O-Ring, cataloged under National Stock Number 5331-00-538-7971, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Wintec Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-538-7971 |
| Primary Part Number | 0201-2028 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Wintec Llc |
| Status | ACTIVE |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 0201-2028 PRIMARY | Wintec Llc (USA) |
| Reference | Meaning |
|---|---|
| 8026-3050PC46 | 5/9 Secondary reference Wintec Llc |
| 0201-2028 | 5/2 Secondary reference U.S. Government activity |
NSN 5331-00-538-7971 is a O-Ring, manufactured by Wintec Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-538-7971 has 1 manufacturer part number on file: 0201-2028 (Wintec Llc).
Key specifications for 0201-2028: Material: RUBBER SYNTHETIC. 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.