The Gearshaft,helical, cataloged under National Stock Number 3040-01-239-2142, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Emerson Electric Co Browning Mfg Div. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-239-2142 |
| Primary Part Number | B2061257AP |
| Item Name | Gearshaft,helical |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Emerson Electric Co Browning Mfg Div |
| Status | ACTIVE |
| Shaft Material | STEEL COMP 4140 |
| Gear Material | STEEL COMP 4140 |
| 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 |
|---|---|
| B2061257AP PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
| Reference | Meaning |
|---|---|
| X-2055-1 | D/9 Drawing number reference only Emerson Electric Co Browning Mfg Div |
| X-2055-1 ITEM 16 | 5/9 Secondary reference Emerson Electric Co Browning Mfg Div |
NSN 3040-01-239-2142 is a Gearshaft,helical, manufactured by Emerson Electric Co Browning Mfg Div, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-239-2142 has 1 manufacturer part number on file: B2061257AP (Emerson Electric Co Browning Mfg Div).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-239-2143. Verify interchangeability with system specifications before substitution.
Key specifications for B2061257AP: Shaft Material: STEEL COMP 4140; Overall Length: 8.000 INCHES NOMINAL IN; Gear Material: STEEL COMP 4140. 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.