The Seal Bellows, cataloged under National Stock Number 5330-00-548-6180, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Defense Maritime Solutions, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-548-6180 |
| Primary Part Number | HSP-7135 |
| Item Name | Seal Bellows |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Defense Maritime Solutions, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | RUBBER SYNTHETIC,2.062 IN. OD,1.375 IN. ID IN |
| 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 |
|---|---|
| HSP-7135 PRIMARY | Defense Maritime Solutions, Inc. (USA) |
| M00825 | John Crane, Inc (USA) |
| 925-7523 | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| 6957675PC18 | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| Reference | Meaning |
|---|---|
| HSP-7135 | 5/9 Secondary reference Wartsila Lips Inc |
| A21-1375-37 | 5/9 Secondary reference John Crane, Inc |
| 925-7523 | 5/9 Secondary reference Aqua-Chem, Inc. |
| 6957675PC18 | 5/9 Secondary reference Aqua-Chem, Inc. |
NSN 5330-00-548-6180 is a Seal Bellows, manufactured by Defense Maritime Solutions, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-548-6180 has 4 manufacturer part numbers on file: HSP-7135 (Defense Maritime Solutions, Inc.), M00825 (John Crane, Inc), 925-7523 (Aqua-Chem, Inc. Dba Aqua-Chem Inc), 6957675PC18 (Aqua-Chem, Inc. Dba Aqua-Chem Inc).
Key specifications for HSP-7135: General Characteristics Item Description: RUBBER SYNTHETIC,2.062 IN. OD,1.375 IN. ID IN. 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.