The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-021-0381, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-021-0381 |
| Primary Part Number | 212MT028P004 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Securing Method | THREADED HOLE(S) BOTH ENDS |
| Threaded Hole Location | BOTH ENDS: 0.094 IN. FROM HUB END, 120 DEG APART IN |
| Bore Length | 0.2031 INCHES NOMINAL BOTH ENDS IN |
| Design Type | NONINSULATOR SPRING ACTION |
| Outside Diameter | 0.500 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT BOTH ENDS |
| Threaded Hole Quantity | 2 BOTH ENDS |
| Thread Size Designator | 0.086.56 BOTH ENDS |
| Bore Diameter | 0.1250 INCHES NOMINAL FIRST END IN |
| Bore Diameter | 0.1200 INCHES NOMINAL SECOND END IN |
| Furnished Items and Quantity | SETSCREW 4 |
| 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 |
|---|---|
| 212MT028P004 | Raytheon Company (USA) |
| 212MT028P004 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 212MT028P004 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 3010-01-021-0381 is a Coupling,shaft,flexible, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-021-0381 has 2 manufacturer part numbers on file: 212MT028P004 (Raytheon Company), 212MT028P004 (Raytheon Company Dba Raytheon Co).
Key specifications for 212MT028P004: Securing Method: THREADED HOLE(S) BOTH ENDS; Threaded Hole Location: BOTH ENDS: 0.094 IN. FROM HUB END, 120 DEG APART IN; Bore Length: 0.2031 INCHES NOMINAL BOTH ENDS IN; Design Type: NONINSULATOR SPRING ACTION. 11 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.