The Diaphragm Housing a, cataloged under National Stock Number 2040-01-454-2758, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Defense Maritime Solutions, Inc.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-01-454-2758 |
| Primary Part Number | US73380-01 ITEM H73380-01-1 |
| Item Name | Diaphragm Housing a |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Defense Maritime Solutions, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | CONSIST OF DIAPHRAGM HOUSING 1; BACKING RING 1; GUARD 1; SCREW 40; DOWEL 2 |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| US73380-01 ITEM H73380-01-1 PRIMARY | Defense Maritime Solutions, Inc. (USA) |
| Reference | Meaning |
|---|---|
| H73380-01-1 | C/1 Advisory reference — outside the item-of-supply concept Wartsila Lips Inc |
| US73380-01 ITEM H73380-01-1 | 3/9 Design control — primary reference Wartsila Lips Inc |
| US73380-01 | D/9 Drawing number reference only Wartsila Lips Inc |
NSN 2040-01-454-2758 is a Diaphragm Housing a, manufactured by Defense Maritime Solutions, Inc., classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-454-2758 has 1 manufacturer part number on file: US73380-01 ITEM H73380-01-1 (Defense Maritime Solutions, Inc.).
Key specifications for US73380-01 ITEM H73380-01-1: General Characteristics Item Description: CONSIST OF DIAPHRAGM HOUSING 1; BACKING RING 1; GUARD 1; SCREW 40; DOWEL 2; End Item Identification: USED ON WHIDBEY ISLAND CLASS LSD; Material: COPPER ALLOY. 2 specifications are documented in the U.S. Government catalog.
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.