The O-Ring, cataloged under National Stock Number 5331-01-357-7212, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Lexair Inc. The record lists 7 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Critical Maritime Systems & Support Limited (CAGE K7739); Lexair Inc (CAGE 56607); Wellman Group (CAGE K7018) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-357-7212 |
| Primary Part Number | P49666-916 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Lexair Inc |
| 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 |
|---|---|
| X5433-30-001 ITEM 19 | Critical Maritime Systems & Support Limited (GBR) |
| P90073 ITEM 32 | Lexair Inc (USA) |
| X5433-30-001/19 | Critical Maritime Systems & Support Limited (GBR) |
| P49666-916 PRIMARY | Lexair Inc (USA) |
| P90073/32 | Lexair Inc (USA) |
| AP49666-916 | Wellman Group (GBR) |
| P49666-916 | Wellman Group (GBR) |
| Reference | Meaning |
|---|---|
| AP49666 | 5/1 Secondary reference Wellman Group |
| P49666 | 5/1 Secondary reference Wellman Group |
NSN 5331-01-357-7212 is a O-Ring, manufactured by Lexair Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-357-7212 has 7 manufacturer part numbers on file: X5433-30-001 ITEM 19 (Critical Maritime Systems & Support Limited), P90073 ITEM 32 (Lexair Inc), X5433-30-001/19 (Critical Maritime Systems & Support Limited), P49666-916 (Lexair Inc), P90073/32 (Lexair Inc) and 2 more.
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.