The Block,thrust,axle, cataloged under National Stock Number 2520-00-475-6554, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Meritor Industrial Products, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2520-00-475-6554 |
| Primary Part Number | 2297Q563 |
| Item Name | Block,thrust,axle |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Meritor Industrial Products, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | BRONZE,SAE 64 OR SAE 660,2.125 IN. LG,1.000 IN.W,0.625 IN.H,CENTRALLY LOCATED HOLE 0.516 IN.DIA BY 0.250 IN.DEEP WITH 30.0 DEG BY 0.531 IN.DIA CHAMFER IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 2520-00-475-6554 is a Block,thrust,axle, manufactured by Meritor Industrial Products, Llc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-475-6554 has 2 manufacturer part numbers on file: 2297Q563 (Meritor Industrial Products, Llc), 2297Q563 (Meritor Heavy Vehicle Systems, Llc).
1 possible match (shared part number, not a government interchangeability claim): 4920-01-024-6753. Verify interchangeability with system specifications before substitution.
Key specifications for 2297Q563: General Characteristics Item Description: BRONZE,SAE 64 OR SAE 660,2.125 IN. LG,1.000 IN.W,0.625 IN.H,CENTRALLY LOCATED HOLE 0.516 IN.DIA BY 0.250 IN.DEEP WITH 30.0 DEG BY 0.531 IN.DIA CHAMFER 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.