The Clamp-Bushing Assembly,shaft-Hub, cataloged under National Stock Number 3040-01-720-7749, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Naval Sea Systems Command. This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Item Name | Clamp-Bushing Assembly,shaft-Hub |
| FSC / FSG | 3040 — No Item Name Available (FSG 30) |
| Manufacturers | Naval Sea Systems Command (CAGE 53711); Electric Boat Corporation Div General Dynamics Electric Boat (CAGE 96169) |
| Parameter | Value |
|---|---|
| NSN | 3040-01-720-7749 |
| Primary Part Number | 556-8838741-4 |
| Item Name | Clamp-Bushing Assembly,shaft-Hub |
| FSC / FSG | 3040 / 30 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 838741/PAGE 20 PN 4 | Naval Sea Systems Command (USA) |
| LSA001609-4 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 556-8838741-4 PRIMARY | Naval Sea Systems Command (USA) |
| R6426930-4 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 218033641 PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 8838741 | Naval Sea Systems Command (USA) |
NSN 3040-01-720-7749 is a Clamp-Bushing Assembly,shaft-Hub, manufactured by Naval Sea Systems Command, classified under FSC 3040 (No Item Name Available). Status: active.
NSN 3040-01-720-7749 has 6 cross-referenced part numbers: 838741/PAGE 20 PN 4 (Naval Sea Systems Command), LSA001609-4 (Electric Boat Corporation Div General Dynamics Electric Boat), 556-8838741-4 (Naval Sea Systems Command), R6426930-4 (Electric Boat Corporation Div General Dynamics Electric Boat), 218033641 (Electric Boat Corporation Div General Dynamics Electric Boat) and 1 more.
There are 5 known substitutes for 3040-01-720-7749: 9390-01-720-1033, 5330-01-720-1049, 3040-01-720-1091 and 2 more. Verify interchangeability with system specifications before substitution.