The Differential Gear Unit, cataloged under National Stock Number 3040-00-254-9960, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Astronautics Corporation of America. Government technical data includes 4 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-254-9960 |
| Primary Part Number | 100877 |
| Item Name | Differential Gear Unit |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Astronautics Corporation of America |
| Status | ACTIVE |
| Nominal Outside Diameter | 0.375 INCHES THIRD GEAR IN |
| Nominal Outside Diameter | 0.594 INCHES FIRST GEAR IN |
| Nominal Outside Diameter | 0.719 INCHES FOURTH GEAR IN |
| Nominal Outside Diameter | 0.813 INCHES SECOND GEAR IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 100877 PRIMARY | Astronautics Corporation of America (USA) |
NSN 3040-00-254-9960 is a Differential Gear Unit, manufactured by Astronautics Corporation of America, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-254-9960 has 1 manufacturer part number on file: 100877 (Astronautics Corporation of America).
2 possible matches (shared part number, not a government interchangeability claim): 5950-00-622-3289, 3120-01-143-0119. Verify interchangeability with system specifications before substitution.
Key specifications for 100877: Nominal Outside Diameter: 0.375 INCHES THIRD GEAR IN; Nominal Outside Diameter: 0.594 INCHES FIRST GEAR IN; Nominal Outside Diameter: 0.719 INCHES FOURTH GEAR IN; Nominal Outside Diameter: 0.813 INCHES SECOND GEAR IN. 4 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 3040-00-254-9960 has DEMIL Code Q. 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.