The Belts,v,matched Set, cataloged under National Stock Number 3030-00-857-2139, is classified within Federal Supply Class 3030 (Belting, Drive Belts, Fan Belts, and Accessories) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Reliance Electric Company Dba Reliance & Dodge Brands. Government technical data includes 7 specifications, 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3030-00-857-2139 |
| Primary Part Number | 3V750-4 |
| Item Name | Belts,v,matched Set |
| FSC / FSG | 3030 / 30 — Belting, Drive Belts, Fan Belts, and Accessories |
| Manufacturer | Reliance Electric Company Dba Reliance & Dodge Brands |
| Status | ACTIVE |
| Nominal Effective Outside Length | 75.000 INCHES IN |
| Strengthening Feature | FIBER CORD |
| Style Designator | PLAIN, COG OR NOTCHED |
| Belt Quantity | 4 |
| Cross-Sectional Size | 3V V |
| Material | FIBER AND RUBBER BODY |
| Performance Type | HIGH CAPACITY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3V750-4 PRIMARY | Reliance Electric Company Dba Reliance & Dodge Brands (USA) |
| 3V750-4 | Carlisle Power Transmission Products Inc (USA) |
| Reference | Meaning |
|---|---|
| BT1615 | 5/2 Secondary reference U.S. Government activity |
| 45902477 | 5/9 Secondary reference U.S. Government activity |
| MIL-B-52919 | 5/9 Secondary reference U.S. Government activity |
| 3V750-4 | 5/9 Secondary reference U.S. Government activity |
| MS39277-075-4 | 5/9 Secondary reference U.S. Government activity |
NSN 3030-00-857-2139 is a Belts,v,matched Set, manufactured by Reliance Electric Company Dba Reliance & Dodge Brands, classified under FSC 3030, Belting, Drive Belts, Fan Belts, and Accessories. Status: active.
NSN 3030-00-857-2139 has 2 manufacturer part numbers on file: 3V750-4 (Reliance Electric Company Dba Reliance & Dodge Brands), 3V750-4 (Carlisle Power Transmission Products Inc).
Key specifications for 3V750-4: Nominal Effective Outside Length: 75.000 INCHES IN; Strengthening Feature: FIBER CORD; Style Designator: PLAIN, COG OR NOTCHED; Belt Quantity: 4. 7 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.