The Trunnion,hub,lower, cataloged under National Stock Number 2520-01-101-2551, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-01-101-2551 |
| Item Name | Trunnion,hub,lower |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL CAST STEEL SAE 0025;LENGTH 10.000 IN;WIDTH 9.250 IN;HEIGHT 3.500 IN;HAS 4 BOLT HOLES 1.187 IN DIA SPACED 6.250 IN BY 7.000 IN CENTER TO CENTER;HAS A 2.187 IN INSIDE RADIUS AND A 3.500 IN OUTSIDE RADIUS;BOLT HOLES HAVE A DEPTH OF 1.875 IN;FROM BOLT HOLE CENTERS TO BOLT HOLE CENTERS ALONG LENGTH AXIS THE INSIDE DIA INCREASES TO 2.468 IN RADIUS 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 |
|---|---|
| SW1513OP-11 | 5/2 Secondary reference U.S. Government activity |
| 338-426 | 5/9 Secondary reference U.S. Government activity |
| D898-00 | D/9 Drawing number reference only U.S. Government activity |
| 898-00 | 3/2 Design control — primary reference U.S. Government activity |
| 12315351 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 2520-01-101-2551 is a Trunnion,hub,lower, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
Key specifications for 2520-01-101-2551: General Characteristics Item Description: MATERIAL CAST STEEL SAE 0025;LENGTH 10.000 IN;WIDTH 9.250 IN;HEIGHT 3.500 IN;HAS 4 BOLT HOLES 1.187 IN DIA SPACED 6.250 IN BY 7.000 IN CENTER TO CENTER;HAS A 2.187 IN INSIDE RADIUS AND A 3.500 IN OUTSIDE RADIUS;BOLT HOLES HAVE A DEPTH OF 1.875 IN;FROM BOLT HOLE CENTERS TO BOLT HOLE CENTERS ALONG LENGTH AXIS THE INSIDE DIA INCREASES TO 2.468 IN RADIUS 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.