The Retainer,packing, cataloged under National Stock Number 5330-01-520-9201, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-520-9201 |
| Primary Part Number | BACR12BM121 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | ITEM IS FAA CERTIFIED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| BACR12BM121 | Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo (USA) |
| BACR12BM121 | Coronado Manufacturing, Inc. (USA) |
| BACR12BM121 | Trelleborg Sealing Solutions Us, Inc. (USA) |
| Reference | Meaning |
|---|---|
| BACR12BM121 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5330-01-520-9201 is a Retainer,packing, manufactured by Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-520-9201 has 3 manufacturer part numbers on file: BACR12BM121 (Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo), BACR12BM121 (Coronado Manufacturing, Inc.), BACR12BM121 (Trelleborg Sealing Solutions Us, Inc.).
Key specifications for BACR12BM121: Part Name Assigned by Controlling Agency: RING; End Item Identification: KC-46A TANKER A; Reference Number Differentiating Characteristics: ITEM IS FAA CERTIFIED. 1 specification is documented in the U.S. Government catalog.
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.