The Gearshaft,spur, cataloged under National Stock Number 3040-01-280-9018, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-280-9018 |
| Primary Part Number | 709-5486674 ITEM 7 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL |
| Shaft Largest Diameter | 1.750 INCHES NOMINAL IN |
| Teeth Quantity | 70 |
| Gear Outside Diameter | 7.160 INCHES NOMINAL IN |
| Gear Material | STEEL |
| 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 |
|---|---|
| 709-5486674 ITEM 7 PRIMARY | Naval Sea Systems Command (USA) |
| 5486674-0025 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 5486674 ITEM 7 | 5/9 Secondary reference Blackmore & Glunt Inc Div Blackmore and Glunt, Inc. |
| 709-5486674 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-280-9018 is a Gearshaft,spur, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-280-9018 has 2 manufacturer part numbers on file: 709-5486674 ITEM 7 (Naval Sea Systems Command), 5486674-0025 (Huntington Ingalls Inc Div Newport News Shipbuilding).
4 possible matches (shared part number, not a government interchangeability claim): 3040-01-281-2484, 3950-01-281-4338, 5365-01-524-7613. Verify interchangeability with system specifications before substitution.
Key specifications for 709-5486674 ITEM 7: Shaft Type: SHOULDERED; Shaft Material: STEEL; Shaft Largest Diameter: 1.750 INCHES NOMINAL IN; Teeth Quantity: 70. 6 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.