The Hub,flanged, cataloged under National Stock Number 2530-00-356-7787, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-00-356-7787 |
| Item Name | Hub,flanged |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL C4140,11.560 IN.O/A OD;8.150 IN. NOMINAL L;SPLINE DATE,25 TEETH,4.16PITCH DIA,3.962 NOMINAL ROOT DIA,32 PRESSURE ANGLE,0.500 DIAMETRAL PITCH;CIRCULAR TOOTH TICKNESS,2.601 MAX.EFF,TO MEASURE 4.646-468 OVER 0.320 IN.DIA PINS;12 HOLES,0.609 IN.DIA DRILL THRU;2 OFFSET HOLES,0.344 IN. DRILL THRU,0.750 IN.DIA SPOTFACE,0.060 DEEP;0.125-27 NPTF;6 HOLES,0.257 IN. DRILL THRU,0.312-18 NC-3B TAP THRU IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 217583 | 5/9 Secondary reference Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| X-227300 | 3/9 Design control — primary reference Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
NSN 2530-00-356-7787 is a Hub,flanged, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
Key specifications for 2530-00-356-7787: General Characteristics Item Description: STEEL C4140,11.560 IN.O/A OD;8.150 IN. NOMINAL L;SPLINE DATE,25 TEETH,4.16PITCH DIA,3.962 NOMINAL ROOT DIA,32 PRESSURE ANGLE,0.500 DIAMETRAL PITCH;CIRCULAR TOOTH TICKNESS,2.601 MAX.EFF,TO MEASURE 4.646-468 OVER 0.320 IN.DIA PINS;12 HOLES,0.609 IN.DIA DRILL THRU;2 OFFSET HOLES,0.344 IN. DRILL THRU,0.750 IN.DIA SPOTFACE,0.060 DEEP;0.125-27 NPTF;6 HOLES,0.257 IN. DRILL THRU,0.312-18 NC-3B TAP THRU 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.