The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-370-5519, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-370-5519 |
| Primary Part Number | BF7-1/2-1/2 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Altra Industrial Motion Corp. |
| Status | ACTIVE |
| Keyway Depth | 0.0620 INCHES NOMINAL BOTH ENDS IN |
| Securing Method | THREADED HOLE(S) BOTH ENDS |
| Threaded Hole Location | ON EACH HUB |
| Bore Length | 0.5000 INCHES NOMINAL BOTH ENDS IN |
| Design Type | INSERT |
| Keying Facility Type | KEYWAY BOTH ENDS |
| Outside Diameter | 1.219 INCHES NOMINAL IN |
| Features Provided | KEYWAY |
| Bore Shape | STRAIGHT BOTH ENDS |
| Keying Facility Quantity | 1 BOTH ENDS |
| Threaded Hole Quantity | 1 BOTH ENDS |
| Thread Size Designator | 1/4-20 BOTH ENDS |
| Keyway Width | 0.125 INCHES NOMINAL BOTH ENDS IN |
| Bore Diameter | 0.5000 INCHES NOMINAL BOTH ENDS IN |
| Insert Material | RUBBER |
| 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 |
|---|---|
| P005940 | Federal Equipment Co (USA) |
| BF7-1/2-1/2 PRIMARY | Altra Industrial Motion Corp. (USA) |
| Z440237 REV G FN 50 | Federal Equipment Co (USA) |
| Reference | Meaning |
|---|---|
| Z440237 | D/9 Drawing number reference only Federal Equipment Company Dba Use CAGE Code 60587 for Cataloging |
NSN 3010-01-370-5519 is a Coupling,shaft,flexible, manufactured by Altra Industrial Motion Corp., classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-370-5519 has 3 manufacturer part numbers on file: P005940 (Federal Equipment Co), BF7-1/2-1/2 (Altra Industrial Motion Corp.), Z440237 REV G FN 50 (Federal Equipment Co).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-370-5533. Verify interchangeability with system specifications before substitution.
Key specifications for BF7-1/2-1/2: Keyway Depth: 0.0620 INCHES NOMINAL BOTH ENDS IN; Securing Method: THREADED HOLE(S) BOTH ENDS; Threaded Hole Location: ON EACH HUB; Bore Length: 0.5000 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.