The Belts,v,matched Set, cataloged under National Stock Number 3030-01-287-3085, 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 Gates Corporation. Government technical data includes 8 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3030-01-287-3085 |
| Primary Part Number | B55-4 |
| Item Name | Belts,v,matched Set |
| FSC / FSG | 3030 / 30 — Belting, Drive Belts, Fan Belts, and Accessories |
| Manufacturer | Gates Corporation |
| Status | ACTIVE |
| Strengthening Feature | SYNTHETIC CORD |
| Style Designator | PLAIN |
| Belt Quantity | 4 |
| Cross-Sectional Size | B |
| Environmental Protection | OIL RESISTANT AND HEAT RESISTANT AND STATIC FREE |
| Nominal Width | 0.660 INCHES IN |
| Angle in Deg | 40.0 |
| Nominal Pitch Length | 56.800 INCHES IN |
| 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 |
|---|---|
| B55-4 PRIMARY | Gates Corporation (USA) |
NSN 3030-01-287-3085 is a Belts,v,matched Set, manufactured by Gates Corporation, classified under FSC 3030, Belting, Drive Belts, Fan Belts, and Accessories. Status: active.
NSN 3030-01-287-3085 has 1 manufacturer part number on file: B55-4 (Gates Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 6150-01-384-8838, 5360-01-675-6355. Verify interchangeability with system specifications before substitution.
Key specifications for B55-4: Strengthening Feature: SYNTHETIC CORD; Style Designator: PLAIN; Belt Quantity: 4; Cross-Sectional Size: B. 8 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.