The Hub,clutch Drive, cataloged under National Stock Number 2520-00-562-0071, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2520-00-562-0071 |
| Primary Part Number | 715085 |
| Item Name | Hub,clutch Drive |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL ALLOY STEEL;HEAT TREAT ROCKWELL C MIN 32 TO MAX 36;INTERNAL SPLINE DATA 16/32 PITCH 33 TEETH PITCH DIA 2.0625 IN. ROOT DIA 2.154 IN. 30 DEGREE PRESSURE ANGLE TID 2.125 IN.;EXTERNAL SPLINE S PITCH SPECIAL 75 TEETH 10 DEGREE PRESSURE ANGLE PITCH DIA 15.000IN. TID 14.800 IN. ROOT DIA 14.700 IN.;OD MIN 3.670 IN. MAX 3.730 IN. ID MIN 2.011 IN. MAX 2.016 IN.;MOUNTING HOLES DRILL MIN DIA 0.980 IN. MAX DIA 1.020 IN. 16 HOLES EQUALLY SPACED;ABOVEAND BELOW HUB DRILL 4 HOLES DIA OF 1.3125 IN.;ON HUB 12 HOLES EQUALLY SPACEDDIA OF 0.2812 IN. IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7708743 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 715085 PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
| Reference | Meaning |
|---|---|
| 6766373 | 5/9 Secondary reference General Motors Corp |
| 6766373 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 2520-00-562-0071 is a Hub,clutch Drive, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-562-0071 has 2 manufacturer part numbers on file: 7708743 (U S Army Tank Automotive Command Amsta-Im-Mm), 715085 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
1 possible match (shared part number, not a government interchangeability claim): 6650-01-037-7637. Verify interchangeability with system specifications before substitution.
Key specifications for 715085: General Characteristics Item Description: MATERIAL ALLOY STEEL;HEAT TREAT ROCKWELL C MIN 32 TO MAX 36;INTERNAL SPLINE DATA 16/32 PITCH 33 TEETH PITCH DIA 2.0625 IN. ROOT DIA 2.154 IN. 30 DEGREE PRESSURE ANGLE TID 2.125 IN.;EXTERNAL SPLINE S PITCH SPECIAL 75 TEETH 10 DEGREE PRESSURE ANGLE PITCH DIA 15.000IN. TID 14.800 IN. ROOT DIA 14.700 IN.;OD MIN 3.670 IN. MAX 3.730 IN. ID MIN 2.011 IN. MAX 2.016 IN.;MOUNTING HOLES DRILL MIN DIA 0.980 IN. MAX DIA 1.020 IN. 16 HOLES EQUALLY SPACED;ABOVEAND BELOW HUB DRILL 4 HOLES DIA OF 1.3125 IN.;ON HUB 12 HOLES EQUALLY SPACEDDIA OF 0.2812 IN. IN. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.