The Belt,flat, cataloged under National Stock Number 3030-01-391-9251, 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 Borroughs Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3030-01-391-9251 |
| Primary Part Number | 25657-386 |
| Item Name | Belt,flat |
| FSC / FSG | 3030 / 30 — Belting, Drive Belts, Fan Belts, and Accessories |
| Manufacturer | Borroughs Llc |
| Status | ACTIVE |
| Nominal Width | 16.000 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 |
|---|---|
| 25657-386 PRIMARY | Borroughs Llc (USA) |
| Reference | Meaning |
|---|---|
| 25657-386 | 3/9 Design control — primary reference Borroughs Mfg Co |
| 23-B-25257-386 | 5/9 Secondary reference Borroughs Mfg Co |
NSN 3030-01-391-9251 is a Belt,flat, manufactured by Borroughs Llc, classified under FSC 3030, Belting, Drive Belts, Fan Belts, and Accessories. Status: active.
NSN 3030-01-391-9251 has 1 manufacturer part number on file: 25657-386 (Borroughs Llc).
Key specifications for 25657-386: Special Features: 88.500 IN. LENGTH IN; Nominal Width: 16.000 INCHES IN. 1 specification is 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.