The Shaft Assembly,shouldered, cataloged under National Stock Number 3040-01-623-1903, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Preci-Manufacturing, Incorporated. The record lists 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-623-1903 |
| Primary Part Number | 9-38985-501 |
| Item Name | Shaft Assembly,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Preci-Manufacturing, Incorporated |
| Status | ACTIVE |
| 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 |
|---|---|
| 9-38985-501 PRIMARY | Preci-Manufacturing, Incorporated (USA) |
| 9-38985-501 PRIMARY | Skyspares Parts Inc (USA) |
| 9-38985-501 PRIMARY | Precision Metals Corp. Dba Precision Metals Corp (USA) |
| 9-38985-501 PRIMARY | Kent Associates, Inc (USA) |
| 9-38985-501 PRIMARY | Beta Engineering, Inc. Dba Beta Engineering Inc (USA) |
| 9-38985-501 PRIMARY | Tronson Manufacturing, Inc (USA) |
| 9-38985-501 PRIMARY | S&s Precision Manufacturing, Inc. Dba S & S Precision Manufacturing Inc (USA) |
| 9-38985-501 PRIMARY | Precision Spring and Stamping Corporation Dba Pressco Products (USA) |
| 9-38985-501 PRIMARY | Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co (USA) |
| 9-38985-501 PRIMARY | Aerometals, Inc. (USA) |
| 9-38985-501 PRIMARY | Aero Components Inc (USA) |
| 9-38985-501 PRIMARY | Milling Precision Tool Corp Dba Milling Precision Acquisition Co (USA) |
| 9-38985-501 PRIMARY | Ideal Motors Inc (USA) |
| 9-38985-501 PRIMARY | Ohmic Instruments Company Dba Ohmic (USA) |
| Reference | Meaning |
|---|---|
| 9-38985-501 | 5/9 Secondary reference Acro Tech Inc |
| 9-38985-501 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-623-1903 is a Shaft Assembly,shouldered, manufactured by Preci-Manufacturing, Incorporated, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-623-1903 has 14 manufacturer part numbers on file: 9-38985-501 (Preci-Manufacturing, Incorporated), 9-38985-501 (Skyspares Parts Inc), 9-38985-501 (Precision Metals Corp. Dba Precision Metals Corp), 9-38985-501 (Kent Associates, Inc), 9-38985-501 (Beta Engineering, Inc. Dba Beta Engineering Inc) and 9 more.
Key specifications for 9-38985-501: Part Name Assigned by Controlling Agency: SHAFT ASSEMBLY; End Item Identification: BOEING B-52 AIRCRAFT. 0 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 3040-01-623-1903 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.