The Bulkhead Seal Assy, cataloged under National Stock Number 2040-01-394-9639, 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.. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2040-01-394-9639 |
| Primary Part Number | H70300/130 |
| Item Name | Bulkhead Seal Assy |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Defense Maritime Solutions, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| 243-6736967-ITEM-106 | Bollinger Shipyards Lockport, L.l.c. (USA) |
| H70300/130 PRIMARY | Defense Maritime Solutions, Inc. (USA) |
| Reference | Meaning |
|---|---|
| H70300/130 | 5/9 Secondary reference John Crane, Inc |
| 5568789 | 5/1 Secondary reference Naval Sea Systems Command |
| US72404-01 | C/1 Advisory reference — outside the item-of-supply concept John Crane, Inc |
NSN 2040-01-394-9639 is a Bulkhead Seal Assy, manufactured by Defense Maritime Solutions, Inc., classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-394-9639 has 2 manufacturer part numbers on file: 243-6736967-ITEM-106 (Bollinger Shipyards Lockport, L.l.c.), H70300/130 (Defense Maritime Solutions, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 2040-01-397-7807. Verify interchangeability with system specifications before substitution.
Key specifications for H70300/130: End Item Identification: NPC SSRS. 0 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.