The Pulley,groove, cataloged under National Stock Number 3020-01-225-7055, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Reliance Electric Company Dba Reliance & Dodge Brands. Government technical data includes 21 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-225-7055 |
| Primary Part Number | 112177-1-3V-4.12 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Reliance Electric Company Dba Reliance & Dodge Brands |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Securing Method | TAPERED-LOCK BUSHING |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.875 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| Groove Shape | V |
| Outside Diameter | 4.120 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | WEBBED OR SPOKED |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 2 |
| Distance From Outside Flange/rim to Hub End and Location | 0.219 INCHES NOMINAL AA END AND 0.406 INCHES NOMINAL BB END IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.875 INCHES NOMINAL IN |
| Furnished Items | KEYING FACILITY |
| Securing Location | BB END |
| Lightening Hole | NOT INCLUDED |
| 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 |
|---|---|
| 112177-1-3V-4.12 PRIMARY | Reliance Electric Company Dba Reliance & Dodge Brands (USA) |
| Reference | Meaning |
|---|---|
| 112177 | 5/9 Secondary reference Reliance Electric Company Dba Reliance & Dodge Brands |
| ES-19-4873-6 | 5/2 Secondary reference U.S. Government activity |
| ES-19-4873 | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-01-225-7055 is a Pulley,groove, manufactured by Reliance Electric Company Dba Reliance & Dodge Brands, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-225-7055 has 1 manufacturer part number on file: 112177-1-3V-4.12 (Reliance Electric Company Dba Reliance & Dodge Brands).
Key specifications for 112177-1-3V-4.12: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: TAPERED-LOCK BUSHING; Split Hub Feature: NOT INCLUDED. 21 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.