The Carrier Assembly,front, cataloged under National Stock Number 2520-01-040-5549, 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1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2520-01-040-5549 |
| Item Name | Carrier Assembly,front |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Status | ACTIVE |
| General Characteristics Item Description | CONSIST OF HOUSING,ALUMINUM QTY 1;GEAR,HELICAL,STEEL QTY 3;PIN ASSEMBLY,STEEL QTY 3;DIMENSION 4.125 IN. OD;2.313 IN. LG;1.219 IN. MAX ID 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 |
|---|---|
| 4028110 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2520-01-040-5549 is a Carrier Assembly,front, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5310-01-687-6928. Verify interchangeability with system specifications before substitution.
Key specifications for 2520-01-040-5549: General Characteristics Item Description: CONSIST OF HOUSING,ALUMINUM QTY 1;GEAR,HELICAL,STEEL QTY 3;PIN ASSEMBLY,STEEL QTY 3;DIMENSION 4.125 IN. OD;2.313 IN. LG;1.219 IN. MAX ID IN; End Item Identification: 2320005798942. 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.