The Support Assembly,transmission, cataloged under National Stock Number 2520-01-107-4263, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is The W.w. Williams Company, Llc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-01-107-4263 |
| Primary Part Number | 29515355 |
| Item Name | Support Assembly,transmission |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | The W.w. Williams Company, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF VALVE,GUIDE 1;VALVE,SPRING 1;SUPPORT ASSEMBLY,FRONT 1;BEARING ASSEMBLY 1 |
| 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 |
|---|---|
| 29515355 | The W.w. Williams Company, Llc (USA) |
| 29515355 | Wajax Power Systems (CAN) |
| Reference | Meaning |
|---|---|
| 29515355 | 3/9 Design control — primary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| 23015871 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| 6881599 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 2520-01-107-4263 is a Support Assembly,transmission, manufactured by The W.w. Williams Company, Llc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-107-4263 has 2 manufacturer part numbers on file: 29515355 (The W.w. Williams Company, Llc), 29515355 (Wajax Power Systems).
Key specifications for 29515355: General Characteristics Item Description: CONSISTS OF VALVE,GUIDE 1;VALVE,SPRING 1;SUPPORT ASSEMBLY,FRONT 1;BEARING ASSEMBLY 1. 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.