The Shaft,straight, cataloged under National Stock Number 3040-01-044-5583, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Marco Seattle Inc Dba Marco. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Shaft,straight |
| FSC / FSG | 3040 — Miscellaneous Power Transmission Equipment (FSG 30) |
| Manufacturers | Marco Seattle Inc Dba Marco (CAGE 09608) |
| Parameter | Value |
|---|---|
| NSN | 3040-01-044-5583 |
| Primary Part Number | B30251 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Marco Seattle Inc Dba Marco |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| B30251 PRIMARY | Marco Seattle Inc Dba Marco (USA) |
| Reference | Meaning |
|---|---|
| M45684 | D/9 Drawing number reference only Marco Seattle Inc Dba Marco |
NSN 3040-01-044-5583 is a Shaft,straight, manufactured by Marco Seattle Inc Dba Marco, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-044-5583 has 1 manufacturer part number on file: B30251 (Marco Seattle Inc Dba Marco).
3 possible matches (shared part number, not a government interchangeability claim): 3040-01-044-6245, 3950-01-044-6431, 3020-01-045-8650. Verify interchangeability with system specifications before substitution.
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.