The O-Ring, cataloged under National Stock Number 5331-01-321-2049, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Leslie Controls, Inc. Dba Leslie Controls Inc (CAGE 35795) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-321-2049 |
| Primary Part Number | NC408666 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Leslie Controls, Inc. Dba Leslie Controls 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 |
|---|---|
| NC408666 PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 408666 | 5/9 Secondary reference Circor Intl Inc |
| 2498-00-257-12 | 5/9 Secondary reference Circor Intl Inc |
| 408666 | 5/9 Secondary reference Leslie Controls, Inc. Dba Leslie Controls Inc |
NSN 5331-01-321-2049 is a O-Ring, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-321-2049 has 1 manufacturer part number on file: NC408666 (Leslie Controls, Inc. Dba Leslie Controls Inc).
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.