The Gear Assembly,speed Decreaser, cataloged under National Stock Number 3010-01-345-1570, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is John Crane, Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-345-1570 |
| Primary Part Number | H47952 |
| Item Name | Gear Assembly,speed Decreaser |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | John Crane, 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 |
|---|---|
| H71686-4-1 | John Crane, Inc (USA) |
| US71686 ITEM 4-1 | Defense Maritime Solutions, Inc. (USA) |
| H47952 PRIMARY | John Crane, Inc (USA) |
| Reference | Meaning |
|---|---|
| US71686 ITEM 4-1 | 5/9 Secondary reference Wartsila Lips Inc |
| US71686 ITEM 4-1 | 5/9 Secondary reference John Crane, Inc |
NSN 3010-01-345-1570 is a Gear Assembly,speed Decreaser, manufactured by John Crane, Inc, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-345-1570 has 3 manufacturer part numbers on file: H71686-4-1 (John Crane, Inc), US71686 ITEM 4-1 (Defense Maritime Solutions, Inc.), H47952 (John Crane, Inc).
Key specifications for H47952: End Item Identification: STERN TUBE SEAL ASSY. 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.