The Shaft,shouldered, cataloged under National Stock Number 3040-01-337-7312, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Appleton Marine Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 — Miscellaneous Power Transmission Equipment (FSG 30) |
| Manufacturers | Appleton Marine Inc (CAGE 70433) |
| Parameter | Value |
|---|---|
| NSN | 3040-01-337-7312 |
| Primary Part Number | AMD-787 ITEM 3 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Appleton Marine Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| AMD-787 ITEM 3 PRIMARY | Appleton Marine Inc (USA) |
| DMD-1120-2 PRIMARY | Appleton Marine Inc (USA) |
| Reference | Meaning |
|---|---|
| AMD-787 | D/9 Drawing number reference only Appleton Marine Inc |
NSN 3040-01-337-7312 is a Shaft,shouldered, manufactured by Appleton Marine Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-337-7312 has 2 manufacturer part numbers on file: AMD-787 ITEM 3 (Appleton Marine Inc), DMD-1120-2 (Appleton Marine Inc).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-337-7313, 3950-01-338-2732. 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.