The Plate,torque Converter, cataloged under National Stock Number 2520-01-415-4981, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Wiggins Lift Co Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2520-01-415-4981 |
| Primary Part Number | 638322 |
| Item Name | Plate,torque Converter |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Wiggins Lift Co Inc |
| Status | ACTIVE |
| Overall Diameter | 13.380 INCHES NOMINAL IN |
| General Characteristics Item Description | 5.250 IN. BORE DIA; SIX 0.320 IN. DIA HOLES SPACED EQUALLY ON 12.380 IN. BC; SIX 0.420 IN. DIA HOLES EQUALLY SPACED ON 6.440 IN. BC IN |
| Material | STEEL |
| 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 |
|---|---|
| 638322 PRIMARY | Wiggins Lift Co Inc (USA) |
| Reference | Meaning |
|---|---|
| P-638322A | D/9 Drawing number reference only Wiggins Lift Co Inc |
| 246-10055 | 5/9 Secondary reference Borg-Warner Automotive Transmission and Engine Components Corp Borg and Beck Torque Systems |
NSN 2520-01-415-4981 is a Plate,torque Converter, manufactured by Wiggins Lift Co Inc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-415-4981 has 1 manufacturer part number on file: 638322 (Wiggins Lift Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-505-2726. Verify interchangeability with system specifications before substitution.
Key specifications for 638322: Overall Diameter: 13.380 INCHES NOMINAL IN; General Characteristics Item Description: 5.250 IN. BORE DIA; SIX 0.320 IN. DIA HOLES SPACED EQUALLY ON 12.380 IN. BC; SIX 0.420 IN. DIA HOLES EQUALLY SPACED ON 6.440 IN. BC IN; Material: STEEL. 3 specifications are 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.