The Retainer,packing, cataloged under National Stock Number 5330-00-591-4540, 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 Us, Inc.. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-591-4540 |
| Primary Part Number | BACR12BM111 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Trelleborg Sealing Solutions Us, Inc. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.058 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| Material Document and Classification | BMS 8-121 TY 1 CL 1 GR B FSCM 81205 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR |
| Peripheral Diameter | 0.604 INCHES MINIMUM AND 0.611 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.434 INCHES MINIMUM AND 0.436 INCHES MAXIMUM IN |
| Material | PLASTIC OVERALL |
| Joint Type | SCARF-PERIPHERAL RETAINER |
| 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 |
|---|---|
| BACR12BM111 | Trelleborg Sealing Solutions Us, Inc. (USA) |
| C11236-111B | Coronado Manufacturing, Inc. (USA) |
| Reference | Meaning |
|---|---|
| BACR12BM111 | 5/9 Secondary reference Greene Tweed and Co Advantec Div |
| BACR12BM111 | 3/2 Design control — primary reference U.S. Government activity |
| BACR12BM111 | 5/9 Secondary reference Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo |
NSN 5330-00-591-4540 is a Retainer,packing, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-591-4540 has 2 manufacturer part numbers on file: BACR12BM111 (Trelleborg Sealing Solutions Us, Inc.), C11236-111B (Coronado Manufacturing, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-669-6928. Verify interchangeability with system specifications before substitution.
Key specifications for BACR12BM111: Cross-Sectional Height: 0.058 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN; Material Document and Classification: BMS 8-121 TY 1 CL 1 GR B FSCM 81205 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: SQUARE/RECTANGULAR; Peripheral Diameter: 0.604 INCHES MINIMUM AND 0.611 INCHES MAXIMUM IN. 7 specifications are 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.