The O-Ring, cataloged under National Stock Number 5331-01-212-0123, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Chase Supply, Inc. Dba Chase Defense Partners. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Chase Supply, Inc. Dba Chase Defense Partners (CAGE 1RZM1) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-212-0123 |
| Primary Part Number | DEA-00339 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Chase Supply, Inc. Dba Chase Defense Partners |
| Status | ACTIVE |
| 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 |
|---|---|
| DEA-00339 PRIMARY | Chase Supply, Inc. Dba Chase Defense Partners (USA) |
| Reference | Meaning |
|---|---|
| DEA-00339 | 5/9 Secondary reference Flexfab Llc |
| 9167526-1 | 5/9 Secondary reference U.S. Government activity |
| D-21455 | 7/9 Vendor item drawing reference Drs Environmental Systems Inc |
| D-21455 | 7/9 Vendor item drawing reference U.S. Government activity |
| D-21455 | 7/2 Vendor item drawing reference U.S. Government activity |
| D-21455 | 5/9 Secondary reference Flexfab Llc |
NSN 5331-01-212-0123 is a O-Ring, manufactured by Chase Supply, Inc. Dba Chase Defense Partners, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-212-0123 has 1 manufacturer part number on file: DEA-00339 (Chase Supply, Inc. Dba Chase Defense Partners).
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.