The Differential Gear Unit, cataloged under National Stock Number 3040-00-009-2731, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Honeywell International, Inc Div Aerospace-Tucson. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-009-2731 |
| Primary Part Number | 805609-1 |
| Item Name | Differential Gear Unit |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Honeywell International, Inc Div Aerospace-Tucson |
| Status | ACTIVE |
| Nominal Overall Length | 2.210 INCHES IN |
| 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 |
|---|---|
| 805609-1 PRIMARY | Honeywell International, Inc Div Aerospace-Tucson (USA) |
| Reference | Meaning |
|---|---|
| 805609-1 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
NSN 3040-00-009-2731 is a Differential Gear Unit, manufactured by Honeywell International, Inc Div Aerospace-Tucson, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-009-2731 has 1 manufacturer part number on file: 805609-1 (Honeywell International, Inc Div Aerospace-Tucson).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-248-7321. Verify interchangeability with system specifications before substitution.
Key specifications for 805609-1: Nominal Overall Length: 2.210 INCHES IN; Special Features: OVERALL DIAMETER 1.156 INCHES; MATERIAL AND FINISHES: END GEAR, TYPE 2024-T4, ALUMINUM ALLOY, ANODIZED OVERALL PER MIL-A-8625; BEARING, STAINLESS STEEL BALL BEARINGS; ALL EXTERNALLY EXPOSED BEARINGS SHALL BE SHIELDED; GEAR CASE AND ALL OTHER PARTS, STAINLESS STEEL IN; End Item Identification: 6610-00-139-1104; COMPUTER, CENTRAL A1; P/N 948312-4-1; MFR 70210; F5E AIRCRAFT. 1 specification is 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.