The Belt,positive Drive, cataloged under National Stock Number 3030-01-074-2274, 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 9 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3030-01-074-2274 |
| Primary Part Number | 255L100 |
| Item Name | Belt,positive Drive |
| FSC / FSG | 3030 / 30 — Belting, Drive Belts, Fan Belts, and Accessories |
| Manufacturer | Reliance Electric Company Dba Reliance & Dodge Brands |
| Status | ACTIVE |
| Strengthening Feature | SYNTHETIC CORD |
| Drive Type and Quantity | 68 TEETH |
| Style Designator | POSITIVE DRIVE |
| Surface Condition | CLEATED PULLEY SURFACE |
| Nominal Pitch Distance | 0.375 INCHES IN |
| Nominal Width | 1.000 INCHES IN |
| Material | RUBBER CHLOROPRENE CLASS CR BODY |
| Performance Type | LIGHT DUTY |
| Nominal Pitch Length | 25.500 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 |
|---|---|
| 255L100 PRIMARY | Reliance Electric Company Dba Reliance & Dodge Brands (USA) |
| 255L100 PRIMARY | Carlisle Power Transmission Products Inc (USA) |
| 255L100 PRIMARY | Contitech Usa, Inc Dba Veyance Technologies (USA) |
| 255L100 | Emerson Electric Co Browning Mfg Div (USA) |
| 255L100 PRIMARY | Gates Corporation (USA) |
| Reference | Meaning |
|---|---|
| 7C8-05357 | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
| 8-52T-07 ITEM 57 | 5/9 Secondary reference Itw Heartland Components Inc |
| 13220905 | D/9 Drawing number reference only Us Army Aviation and Missile Command |
| 8-52TO7ITEM57 | 5/9 Secondary reference Illinois Tool Wks Inc Linac Div |
| 255L100 | 5/9 Secondary reference U.S. Government activity |
| 255L100 | 5/9 Secondary reference Goodyear Tire and Rubber Co the |
| 255L100 | 5/9 Secondary reference Dixie Bearings Inc |
| 255L100 | 5/9 Secondary reference Lanxess Corporation |
| 8-52-212 | 5/9 Secondary reference Itw Heartland Components Inc |
NSN 3030-01-074-2274 is a Belt,positive Drive, manufactured by Reliance Electric Company Dba Reliance & Dodge Brands, classified under FSC 3030, Belting, Drive Belts, Fan Belts, and Accessories. Status: active.
NSN 3030-01-074-2274 has 5 manufacturer part numbers on file: 255L100 (Reliance Electric Company Dba Reliance & Dodge Brands), 255L100 (Carlisle Power Transmission Products Inc), 255L100 (Contitech Usa, Inc Dba Veyance Technologies), 255L100 (Emerson Electric Co Browning Mfg Div), 255L100 (Gates Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 5998-01-334-3245, 6145-01-406-9774. Verify interchangeability with system specifications before substitution.
Key specifications for 255L100: Strengthening Feature: SYNTHETIC CORD; Drive Type and Quantity: 68 TEETH; Style Designator: POSITIVE DRIVE; Surface Condition: CLEATED PULLEY SURFACE. 9 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.