The Coupling,shaft,rigid, cataloged under National Stock Number 3010-01-515-9539, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-515-9539 |
| Primary Part Number | 512-7409899-4 |
| Item Name | Coupling,shaft,rigid |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Length | 2.750 INCHES NOMINAL BOTH ENDS IN |
| Overall Diameter | 1.500 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Style Designator | PLAIN SLEEVE |
| Features Provided | COUNTERBORE |
| Bore Shape | STRAIGHT BOTH ENDS |
| Body Material | STEEL CORROSION RESISTING |
| Bore Diameter | 0.628 INCHES NOMINAL BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 512-7409899-4 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7409899 | D/9 Drawing number reference only Naval Sea Systems Command |
| B525-3025-4 | 5/2 Secondary reference U.S. Government activity |
NSN 3010-01-515-9539 is a Coupling,shaft,rigid, manufactured by Naval Sea Systems Command, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-515-9539 has 1 manufacturer part number on file: 512-7409899-4 (Naval Sea Systems Command).
Key specifications for 512-7409899-4: Bore Length: 2.750 INCHES NOMINAL BOTH ENDS IN; Overall Diameter: 1.500 INCHES NOMINAL IN; Criticality Code Justification: FEAT; Style Designator: PLAIN SLEEVE. 8 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.
NSN 3010-01-515-9539 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.