The Shaft,shouldered, cataloged under National Stock Number 3040-01-320-3755, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-320-3755 |
| Primary Part Number | D420-19-12-440 ITEM 12 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp |
| Status | ACTIVE |
| Material Document and Classification | ASTM-A-276,GR 304 ASSN STD SINGLE MATERIAL RESPONSE |
| Material | STEEL COMP 304 |
| 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 |
|---|---|
| D420-19-12-440 ITEM 12 PRIMARY | Emerson Automation Solutions Final Control Us Lp (USA) |
| 108-218-080-420-003 | Emerson Automation Solutions Final Control Us Lp (USA) |
| Reference | Meaning |
|---|---|
| D420-19-12-440 | D/9 Drawing number reference only Emerson Automation Solutions Final Control Us Lp |
NSN 3040-01-320-3755 is a Shaft,shouldered, manufactured by Emerson Automation Solutions Final Control Us Lp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-320-3755 has 2 manufacturer part numbers on file: D420-19-12-440 ITEM 12 (Emerson Automation Solutions Final Control Us Lp), 108-218-080-420-003 (Emerson Automation Solutions Final Control Us Lp).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-320-6352. Verify interchangeability with system specifications before substitution.
Key specifications for D420-19-12-440 ITEM 12: Material Document and Classification: ASTM-A-276,GR 304 ASSN STD SINGLE MATERIAL RESPONSE; Material: STEEL COMP 304. 2 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.