The Guard,stern Tube, cataloged under National Stock Number 2010-01-325-4255, is classified within Federal Supply Class 2010 (Ship and Boat Propulsion Components) 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Guard,stern Tube |
| FSC / FSG | 2010 — Ship and Boat Propulsion Components (FSG 20) |
| Manufacturers | John Crane, Inc (CAGE 71724); Defense Maritime Solutions, Inc. (CAGE 0EYA6) |
| Parameter | Value |
|---|---|
| NSN | 2010-01-325-4255 |
| Primary Part Number | H40673173 |
| Item Name | Guard,stern Tube |
| FSC / FSG | 2010 / 20 — Ship and Boat Propulsion Components |
| 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) |
| Part Number | Manufacturer |
|---|---|
| 40673-1735 | John Crane, Inc (USA) |
| H40673173 PRIMARY | Defense Maritime Solutions, Inc. (USA) |
| Reference | Meaning |
|---|---|
| US-71407 ITEM 18 | 5/9 Secondary reference Wartsila Lips Inc |
| H40673-1735-F22 | 5/9 Secondary reference John Crane, Inc |
| H40673-1735-F22 | 5/9 Secondary reference Wartsila Lips Inc |
| H72346-4-6 | 5/9 Secondary reference John Crane, Inc |
| US-71407 ITEM 18 | 5/9 Secondary reference John Crane, Inc |
| H-40673-1735 | 5/9 Secondary reference Wartsila Lips Inc |
NSN 2010-01-325-4255 is a Guard,stern Tube, manufactured by Defense Maritime Solutions, Inc., classified under FSC 2010, Ship and Boat Propulsion Components. Status: active.
NSN 2010-01-325-4255 has 2 manufacturer part numbers on file: 40673-1735 (John Crane, Inc), H40673173 (Defense Maritime Solutions, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6625-01-326-4255. Verify interchangeability with system specifications before substitution.
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.