The Shaft,straight, cataloged under National Stock Number 3040-00-905-9651, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Aimtron Systems, Llc. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-905-9651 |
| Primary Part Number | 500386 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Aimtron Systems, Llc |
| Status | ACTIVE |
| First End Diameter | 0.1870 INCHES NOMINAL IN |
| Second End Diameter | 0.1870 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED |
| Material Document and Classification | QQ-S-763,CLASS 303,CONDITION A FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Slot Depth | 0.062 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Slot Width | 0.040 INCHES NOMINAL IN |
| First End Distance From End to Groove | 0.647 INCHES NOMINAL IN |
| First End Groove Diameter | 0.1750 INCHES NOMINAL IN |
| Second End Style | SLOTTED |
| Material | STEEL CORROSION RESISTING |
| First End Groove Width | 0.0180 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3040-00-905-9651 is a Shaft,straight, manufactured by Aimtron Systems, Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-905-9651 has 2 manufacturer part numbers on file: 500386 (Aimtron Systems, Llc), 8254-406 (Airflo Instrument Company, the Dba Airflo Instrument Co).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-033-9096, 6635-01-191-9113. Verify interchangeability with system specifications before substitution.
Key specifications for 500386: First End Diameter: 0.1870 INCHES NOMINAL IN; Second End Diameter: 0.1870 INCHES NOMINAL IN; First End Style: CIRCULAR GROOVED; Material Document and Classification: QQ-S-763,CLASS 303,CONDITION A FED SPEC SINGLE MATERIAL RESPONSE. 12 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.