The Differential Gear Unit, cataloged under National Stock Number 3040-00-790-0122, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Lockheed Martin Librascope Corporation. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-790-0122 |
| Primary Part Number | BUWEPSDWG2162887 |
| Item Name | Differential Gear Unit |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lockheed Martin Librascope Corporation |
| Status | ACTIVE |
| Nominal Overall Length | 2.120 INCHES IN |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| 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 |
|---|---|
| L316000053 | Lockheed Martin Librascope Corporation (USA) |
| BUWEPSDWG2162887 PRIMARY | Lockheed Martin Librascope Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2162887 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 3040-00-790-0122 is a Differential Gear Unit, manufactured by Lockheed Martin Librascope Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-790-0122 has 2 manufacturer part numbers on file: L316000053 (Lockheed Martin Librascope Corporation), BUWEPSDWG2162887 (Lockheed Martin Librascope Corporation).
Key specifications for BUWEPSDWG2162887: Nominal Overall Length: 2.120 INCHES IN; Special Features: OUTSIDE DIAMETER 1.110 INCHES; SHAFT DIAMETER 0.1874 INCHES; GEAR 1: 120 TEETH, 96 DP, PRESSURE ANGLE 30 DEGREES, FACE WIDTH 0.093 INCHES; GEAR 2: 80 TEETH, 64 DP, PRESSURE ANGLE 20 DEGREES, FACE WIDTH 0.093 INCHES IN; Material: ALUMINUM ALLOY 2024 OVERALL. 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.