The Coupling,shaft,flexible, cataloged under National Stock Number 3010-00-421-5272, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-00-421-5272 |
| Primary Part Number | 7831519G1 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Keyway Depth | 0.3125 INCHES NOMINAL FIRST END IN |
| Keyway Depth | 0.1875 INCHES NOMINAL SECOND END IN |
| Securing Method | KEY BOTH ENDS |
| Bore Length | 2.0000 INCHES NOMINAL BOTH ENDS IN |
| Design Type | INTERNAL GEAR |
| Keying Facility Type | KEYWAY BOTH ENDS |
| Outside Diameter | 5.500 INCHES NOMINAL IN |
| Features Provided | KEYWAY AND GEAR FLEX |
| Bore Shape | STRAIGHT BOTH ENDS |
| Keying Facility Quantity | 1 BOTH ENDS |
| Keyway Width | 0.375 INCHES NOMINAL SECOND END IN |
| Keyway Width | 0.625 INCHES NOMINAL FIRST END IN |
| Bore Diameter | 2.3750 INCHES NOMINAL FIRST END IN |
| Bore Diameter | 1.5000 INCHES NOMINAL SECOND END IN |
| Furnished Items and Quantity | RETAINING RING 2 |
| 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 |
|---|---|
| 7831519G1 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
NSN 3010-00-421-5272 is a Coupling,shaft,flexible, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-00-421-5272 has 1 manufacturer part number on file: 7831519G1 (Lockheed Martin Corporation Div Rms).
Key specifications for 7831519G1: Keyway Depth: 0.3125 INCHES NOMINAL FIRST END IN; Keyway Depth: 0.1875 INCHES NOMINAL SECOND END IN; Securing Method: KEY BOTH ENDS; Bore Length: 2.0000 INCHES NOMINAL BOTH ENDS IN. 15 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.