The O-Ring, cataloged under National Stock Number 5331-01-354-0831, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Ministry of Defence, Directorate of Standardization, Stan 1,. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Ministry of Defence, Directorate of Standardization, Stan 1, (CAGE K0851) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-354-0831 |
| Primary Part Number | UWEC3710/23 PIECE 13 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Ministry of Defence, Directorate of Standardization, Stan 1, |
| 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 |
|---|---|
| UWEC3710/23 PIECE 13 | Ministry of Defence, Directorate of Standardization, Stan 1, (GBR) |
| Reference | Meaning |
|---|---|
| UWEC3710/23 PC1 | C/1 Advisory reference — outside the item-of-supply concept Code Used in Reporting NSN Relations Ps Only for Codes Reporting Govt Spe S or Stds See K0195 K0346 K0794 K085 K1368 K62 |
| K0851 | 3/9 Design control — primary reference Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
NSN 5331-01-354-0831 is a O-Ring, manufactured by Ministry of Defence, Directorate of Standardization, Stan 1,, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-354-0831 has 1 manufacturer part number on file: UWEC3710/23 PIECE 13 (Ministry of Defence, Directorate of Standardization, Stan 1,).
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.