The Coupling,shaft,flexible, cataloged under National Stock Number 3010-00-254-7986, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-00-254-7986 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Status | ACTIVE |
| Keyway Depth | 0.1250 INCHES NOMINAL BOTH ENDS IN |
| Securing Method | THREADED HOLE(S) SECOND END |
| Threaded Hole Location | BOTH ENDS: LOCATED ON TOP OF KEYWAY |
| Bore Length | 2.1250 INCHES NOMINAL SECOND END IN |
| Bore Length | 2.3750 INCHES NOMINAL FIRST END IN |
| Key Width | 0.375 INCHES NOMINAL SECOND END IN |
| Key Width | 0.375 INCHES NOMINAL FIRST END IN |
| Design Type | SILENT CHAIN |
| Keying Facility Type | KEYWAY FIRST END |
| Keying Facility Type | KEYWAY SECOND END |
| Outside Diameter | 5.125 INCHES NOMINAL IN |
| Features Provided | KEYWAY |
| Bore Shape | STRAIGHT FIRST END |
| Bore Shape | STRAIGHT SECOND END |
| Keying Facility Quantity | 1 BOTH ENDS |
| Threaded Hole Quantity | 2 BOTH ENDS |
| Thread Size Designator | 5/16-18 THD SIZE BOTH ENDS |
| Bore Diameter | 1.6250 INCHES NOMINAL BOTH ENDS IN |
| Furnished Items and Quantity | 2 SETSCREWS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2461-25ALT7PCY3 | 5/9 Secondary reference U.S. Government activity |
| 1-2-24SAX1-5-8 | 5/9 Secondary reference Emerson Power Transmission Corporation Div Ept |
| 532538ALT7PCY3 | 5/9 Secondary reference U.S. Government activity |
| 173282 | 3/9 Design control — primary reference Emerson Power Transmission Corporation Div Ept |
| 1-2-24SA-1-5/8 | C/1 Advisory reference — outside the item-of-supply concept Emerson Power Transmission Corporation Div Ept |
| 532538ALT7PCY3 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 3010-00-254-7986 is a Coupling,shaft,flexible, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
Key specifications for 3010-00-254-7986: Keyway Depth: 0.1250 INCHES NOMINAL BOTH ENDS IN; Securing Method: THREADED HOLE(S) SECOND END; Threaded Hole Location: BOTH ENDS: LOCATED ON TOP OF KEYWAY; Bore Length: 2.1250 INCHES NOMINAL SECOND END IN. 19 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.