The Box Assembly, cataloged under National Stock Number 2520-00-451-7713, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-00-451-7713 |
| Primary Part Number | 7974328 |
| Item Name | Box Assembly |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY,355/356,T6; PRIMERPAINT ON EXTERNAL SURFACES; 4.000 IN. LG.; 3.438 IN. W.; 3.000 IN. HT.; 0.250 IN. WALL THK.; BOSS ON 2 OPPOSITE SIDES: 0.125 IN. HT. BY 2.250 IN. DIA.,1.8506 IN. BORE,SURFACE ROUGHNESS IS 63AA MICROINCH; SMALL END BOSS IS 0.562 IN. HT. BY 2.110 IN. OD. BY 1.380 IN. ID.; RING GROOVE IS 0.625 IN. W. BY 1.985 IN. DIA.; PIN 7974645 INCLUDED IN |
| 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 |
|---|---|
| 794328 | Optronic Und Nachrichtentechnik on Spectral Gmbh (DEU) |
| 7974328 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| 2520004517713 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 2520-00-451-7713 is a Box Assembly, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-451-7713 has 2 manufacturer part numbers on file: 794328 (Optronic Und Nachrichtentechnik on Spectral Gmbh), 7974328 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 7974328: General Characteristics Item Description: ALUMINUM ALLOY,355/356,T6; PRIMERPAINT ON EXTERNAL SURFACES; 4.000 IN. LG.; 3.438 IN. W.; 3.000 IN. HT.; 0.250 IN. WALL THK.; BOSS ON 2 OPPOSITE SIDES: 0.125 IN. HT. BY 2.250 IN. DIA.,1.8506 IN. BORE,SURFACE ROUGHNESS IS 63AA MICROINCH; SMALL END BOSS IS 0.562 IN. HT. BY 2.110 IN. OD. BY 1.380 IN. ID.; RING GROOVE IS 0.625 IN. W. BY 1.985 IN. DIA.; PIN 7974645 INCLUDED IN; End Item Identification: TANK,COMBAT,FULL TRACK; NSN 2350-00-678-5773. 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.