The Ring, cataloged under National Stock Number 2520-00-378-7396, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Ring |
| FSC / FSG | 2520 — Vehicular Power Transmission Components (FSG 25) |
| Manufacturers | Taylor Machine Works Inc (CAGE 27618); Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products (CAGE 72447); Fwd Seagrave Holdings Lp (CAGE 23382) |
| Parameter | Value |
|---|---|
| NSN | 2520-00-378-7396 |
| Primary Part Number | 170C39 |
| Item Name | Ring |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 4063P11 | Taylor Machine Works Inc (USA) |
| 170C39 PRIMARY | Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products (USA) |
| 3A170C39 | Fwd Seagrave Holdings Lp (USA) |
| Reference | Meaning |
|---|---|
| 170C39 | 5/9 Secondary reference T and J Industries Inc |
| 4063P11 | 5/9 Secondary reference U.S. Government activity |
| 170C39 | 5/9 Secondary reference U.S. Government activity |
| 1208018 | 5/9 Secondary reference Diamond Reo Truck Co |
NSN 2520-00-378-7396 is a Ring, manufactured by Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-378-7396 has 3 manufacturer part numbers on file: 4063P11 (Taylor Machine Works Inc), 170C39 (Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products), 3A170C39 (Fwd Seagrave Holdings Lp).
1 possible match (shared part number, not a government interchangeability claim): 2520-00-565-0670. Verify interchangeability with system specifications before substitution.
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.