The Pulley,groove, cataloged under National Stock Number 3020-01-183-2712, 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 Emerson Electric Co Browning Mfg Div. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-183-2712 |
| Primary Part Number | 2C56P |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Emerson Electric Co Browning Mfg Div |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Securing Method | THREADED HOLE(S) |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.310 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| Groove Shape | V |
| Outside Diameter | 6.000 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 5.600 INCHES NOMINAL IN |
| Bore Type | TAPERED |
| Bearings | NOT INCLUDED |
| Groove Quantity | 2 |
| Taper Bore Major Diameter | 1.940 INCHES NOMINAL IN |
| Distance From Center of Bore to Bottom of Keyway | 1.345 INCHES NOMINAL IN |
| Securing Hole Quantity | 3 |
| Thread Size | 5/16-18 |
| Keyway Width | 0.125 INCHES NOMINAL IN |
| Counterbore Feature | NOT INCLUDED |
| Furnished Items | KEYING FACILITY |
| Face Width | 2.250 INCHES NOMINAL IN |
| 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 |
NSN 3020-01-183-2712 is a Pulley,groove, manufactured by Emerson Electric Co Browning Mfg Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-183-2712 has 2 manufacturer part numbers on file: 2C56P (Emerson Electric Co Browning Mfg Div), 12332010 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 2C56P: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: THREADED HOLE(S); Split Hub Feature: NOT INCLUDED. 25 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.