The Extension Shaft, cataloged under National Stock Number 3040-00-073-5850, 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 10 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. 3 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 | 3040-00-073-5850 |
| Primary Part Number | 100993 |
| Item Name | Extension Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Astronautics Corporation of America |
| Status | ACTIVE |
| Socket Diameter | 0.376 INCHES NOMINAL IN |
| Length | 1.920 INCHES NOMINAL IN |
| Socket Depth | 0.320 INCHES NOMINAL IN |
| Style Designator | PLAIN SOCKET |
| Outside Diameter | 0.580 INCHES NOMINAL IN |
| Shaft End Design | MALE |
| Shaft End Diameter | 0.093 INCHES NOMINAL IN |
| Shoulder Length | 0.410 INCHES NOMINAL IN |
| End Type | INTEGRAL COUPLING |
| Shaft End Configuration | ROUND |
| 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 |
|---|---|
| 100993 PRIMARY | Astronautics Corporation of America (USA) |
NSN 3040-00-073-5850 is a Extension Shaft, manufactured by Astronautics Corporation of America, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-073-5850 has 1 manufacturer part number on file: 100993 (Astronautics Corporation of America).
3 possible matches (shared part number, not a government interchangeability claim): 5365-00-921-6608, 6210-01-203-5005, 5999-01-330-7516. Verify interchangeability with system specifications before substitution.
Key specifications for 100993: Socket Diameter: 0.376 INCHES NOMINAL IN; Length: 1.920 INCHES NOMINAL IN; Socket Depth: 0.320 INCHES NOMINAL IN; Style Designator: PLAIN SOCKET. 10 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 3040-00-073-5850 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.