The Extension Shaft, cataloged under National Stock Number 3040-00-644-4076, 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. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-644-4076 |
| Primary Part Number | 1048718 |
| Item Name | Extension Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| Length | 1.937 INCHES NOMINAL IN |
| Internal Thread Length | 0.250 INCHES NOMINAL IN |
| Style Designator | THREADED SOCKET |
| Outside Diameter | 0.688 INCHES NOMINAL IN |
| External Thread Length | 0.562 INCHES NOMINAL IN |
| Shaft End Design | FEMALE |
| Nominal Thread Size | 0.375 INCHES STUD IN |
| Thread Quantity Per Inch | 32 STUD |
| Bore Diameter | 0.252 INCHES NOMINAL IN |
| Material | PLASTIC POLYCARBONATE |
| Thread Series Designator | UNEF STUD |
| End Type | PROCESSED END |
| Shaft End Configuration | ROUND |
| 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 |
|---|---|
| 1048718 | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| K39024 | Beta Labs Inc a-B and Millen Mfg Div (USA) |
| Reference | Meaning |
|---|---|
| STE100-2 | 3/2 Design control — primary reference U.S. Government activity |
| 1048718 | 5/9 Secondary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
NSN 3040-00-644-4076 is a Extension Shaft, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-644-4076 has 2 manufacturer part numbers on file: 1048718 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)), K39024 (Beta Labs Inc a-B and Millen Mfg Div).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-370-2999. Verify interchangeability with system specifications before substitution.
Key specifications for 1048718: Length: 1.937 INCHES NOMINAL IN; Internal Thread Length: 0.250 INCHES NOMINAL IN; Style Designator: THREADED SOCKET; Outside Diameter: 0.688 INCHES NOMINAL IN. 13 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.