The Shaft,shouldered, cataloged under National Stock Number 3040-01-320-1765, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Industrial Technologies and Services Llc. 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 | 3040-01-320-1765 |
| Primary Part Number | 21687 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Industrial Technologies and Services Llc |
| Status | ACTIVE |
| Step Quantity | 5 |
| First End Style | PLAIN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| 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 |
|---|---|
| 21687 PRIMARY | Industrial Technologies and Services Llc (USA) |
NSN 3040-01-320-1765 is a Shaft,shouldered, manufactured by Industrial Technologies and Services Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-320-1765 has 1 manufacturer part number on file: 21687 (Industrial Technologies and Services Llc).
2 possible matches (shared part number, not a government interchangeability claim): 3110-01-408-0447, 3010-01-678-6722. Verify interchangeability with system specifications before substitution.
Key specifications for 21687: Step Quantity: 5; First End Style: PLAIN; End Similarity: NOT IDENTICAL; Second End Style: EXTERNAL THREADED. 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.
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.