The O-Ring, cataloged under National Stock Number 5331-01-358-8212, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hampton Hydraulics, Llc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Hampton Hydraulics, Llc (CAGE 62410) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-358-8212 |
| Primary Part Number | 129371 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hampton Hydraulics, Llc |
| 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 |
|---|---|
| 129371 PRIMARY | Hampton Hydraulics, Llc (USA) |
| Reference | Meaning |
|---|---|
| 912135 ITEM 0026 | 5/9 Secondary reference Hampton Hydraulics, Llc |
| 190178 | 5/9 Secondary reference Hampton Hydraulics, Llc |
| 912135 ITEM 0026 | 5/9 Secondary reference Victor Fluid Power Inc |
| 190178 | 3/9 Design control — primary reference Victor Fluid Power Inc |
NSN 5331-01-358-8212 is a O-Ring, manufactured by Hampton Hydraulics, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-358-8212 has 1 manufacturer part number on file: 129371 (Hampton Hydraulics, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5945-01-607-6394. Verify interchangeability with system specifications before substitution.
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.