The Back-Up Ring,preformed Packing, cataloged under National Stock Number 5330-01-722-7003, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Back-Up Ring,preformed Packing |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-722-7003 |
| Item Name | Back-Up Ring,preformed Packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| BACR12BM | D/9 Drawing number reference only U.S. Government activity |
| BACR12BM125 | 5/1 Secondary reference Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo |
| BACR12BM125 | 3/1 Design control — primary reference U.S. Government activity |
| BACR12BM125 | 5/1 Secondary reference Trelleborg Sealing Solutions Us, Inc. |
| BACR12BM125 | 5/1 Secondary reference Coronado Manufacturing, Inc. |
NSN 5330-01-722-7003 is a Back-Up Ring,preformed Packing, classified under FSC 5330, Packing and Gasket Materials. Status: active.
Possible hazard — SDS may be required (DLA HMIC P). 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.