The Belt,positive Drive, cataloged under National Stock Number 3030-01-574-8783, 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 Textron Aviation Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3030-01-574-8783 |
| Primary Part Number | ES20173-2 |
| Item Name | Belt,positive Drive |
| FSC / FSG | 3030 / 30 — Belting, Drive Belts, Fan Belts, and Accessories |
| Manufacturer | Textron Aviation Inc |
| Status | ACTIVE |
| Outside Length | 40.750 INCHES NOMINAL IN |
| Style Designator | POSITIVE DRIVE |
| Nominal Width | 0.800 INCHES IN |
| Material | RUBBER OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ES20173-2 PRIMARY | Textron Aviation Inc (USA) |
| Reference | Meaning |
|---|---|
| ES20173-2 | 3/9 Design control — primary reference Beechcraft Corporation Dba Textron Aviation |
NSN 3030-01-574-8783 is a Belt,positive Drive, manufactured by Textron Aviation Inc, classified under FSC 3030, Belting, Drive Belts, Fan Belts, and Accessories. Status: active.
NSN 3030-01-574-8783 has 1 manufacturer part number on file: ES20173-2 (Textron Aviation Inc).
Key specifications for ES20173-2: Outside Length: 40.750 INCHES NOMINAL IN; Style Designator: POSITIVE DRIVE; Special Features: RIBBED BELT 6-8 RIBS;FLAT ON TOP TEETH ON BOTTOM;RUBBER; Nominal Width: 0.800 INCHES IN. 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.
NSN 3030-01-574-8783 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.