The Differential Gear Unit, cataloged under National Stock Number 3040-01-187-4269, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Melland Gear & Instrument of Hauppauge, Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-187-4269 |
| Primary Part Number | 188C1141P1 |
| Item Name | Differential Gear Unit |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Melland Gear & Instrument of Hauppauge, Inc |
| Status | ACTIVE |
| Nominal Overall Length | 1.210 INCHES IN |
| Nominal Outside Diameter | 1.500 INCHES ALL GEARS IN |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 188C1141P1 | Melland Gear & Instrument of Hauppauge, Inc (USA) |
| Reference | Meaning |
|---|---|
| 188C1141P1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-187-4269 is a Differential Gear Unit, manufactured by Melland Gear & Instrument of Hauppauge, Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-187-4269 has 1 manufacturer part number on file: 188C1141P1 (Melland Gear & Instrument of Hauppauge, Inc).
Key specifications for 188C1141P1: Nominal Overall Length: 1.210 INCHES IN; Nominal Outside Diameter: 1.500 INCHES ALL GEARS IN; Special Features: OUTSIDE GEARS 72 TEETH;48 DIAMETRAL PITCH;20 DEG PRESSURE ANGLE; End Item Identification: B-1B F-101 ENGINE. 3 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.
NSN 3040-01-187-4269 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.