The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-415-9540, 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 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-415-9540 |
| Primary Part Number | 1223D1275 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Keyway Depth | 0.2240 INCHES NOMINAL BOTH ENDS IN |
| Securing Method | CLAMP BOTH ENDS |
| Bore Length | 1.5000 INCHES NOMINAL BOTH ENDS IN |
| Design Type | CLAMPING HUB |
| Keying Facility Type | KEYWAY BOTH ENDS |
| Outside Diameter | 18.540 INCHES NOMINAL IN |
| Features Provided | KEYWAY AND EXPOSED COUPLING BOLT TYPE |
| Bore Shape | STRAIGHT BOTH ENDS |
| Keying Facility Quantity | 1 BOTH ENDS |
| Keyway Width | 0.5000 INCHES NOMINAL BOTH ENDS IN |
| Bore Diameter | 2.6250 INCHES NOMINAL BOTH ENDS IN |
| Furnished Items and Quantity | LOCKING BOLT,SOCKET HEAD CAP 4;LOCKING BOLT HEX HEAD 8 |
| 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 |
|---|---|
| 1223D1275 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 1223D1275 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
NSN 3010-01-415-9540 is a Coupling,shaft,flexible, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-415-9540 has 1 manufacturer part number on file: 1223D1275 (Lockheed Martin Corporation Div Rms).
Key specifications for 1223D1275: Keyway Depth: 0.2240 INCHES NOMINAL BOTH ENDS IN; Securing Method: CLAMP BOTH ENDS; Bore Length: 1.5000 INCHES NOMINAL BOTH ENDS IN; Design Type: CLAMPING HUB. 12 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.