The Belt,round, cataloged under National Stock Number 3030-01-050-6172, 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 Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3030-01-050-6172 |
| Primary Part Number | 2-256E0540-80 |
| Item Name | Belt,round |
| FSC / FSG | 3030 / 30 — Belting, Drive Belts, Fan Belts, and Accessories |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Nominal Inside Circumference | 5.734 INCHES IN |
| Nominal Diameter | 0.147 INCHES IN |
| Style Designator | SOLID ROUND |
| Material | RUBBER OVERALL |
| 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 |
|---|---|
| 2-256E0540-80 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| DBA2-256E540-80 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-256E540-80 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 3030-01-050-6172 is a Belt,round, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 3030, Belting, Drive Belts, Fan Belts, and Accessories. Status: active.
NSN 3030-01-050-6172 has 1 manufacturer part number on file: 2-256E0540-80 (Parker-Hannifin Corp Div O-Ring Division).
Key specifications for 2-256E0540-80: Nominal Inside Circumference: 5.734 INCHES IN; Nominal Diameter: 0.147 INCHES IN; Style Designator: SOLID ROUND; Special Features: RUBBER PROPYLENE CLASS EPM. 4 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.