The O-Ring, cataloged under National Stock Number 5331-01-190-0188, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is English Electric Corp. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-190-0188 |
| Primary Part Number | RW1/820405 ITEM 13 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | English Electric Corp |
| Status | ACTIVE |
| Material | RUBBER CHLOROPRENE CLASS CR |
| 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 |
|---|---|
| RW1/820405 ITEM 13 PRIMARY | English Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| RW-820405-A1 FIND 13 | C/1 Advisory reference — outside the item-of-supply concept David Brown Gear Systems Limited |
| RW-820405-A1 FIND 13 | 5/9 Secondary reference David Brown Special Products Ltd |
| RW-820405-A1 FIND 13 | 5/9 Secondary reference Brown David Vehicle Products Ltd |
NSN 5331-01-190-0188 is a O-Ring, manufactured by English Electric Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-190-0188 has 1 manufacturer part number on file: RW1/820405 ITEM 13 (English Electric Corp).
Key specifications for RW1/820405 ITEM 13: Material: RUBBER CHLOROPRENE CLASS CR. 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.