The Pulley,groove, cataloged under National Stock Number 3020-01-421-1646, 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 Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-421-1646 |
| Primary Part Number | 2310753000 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Taper Bore Minor Diameter | 1.593 INCHES NOMINAL IN |
| Securing Method | THREADED HOLE(S) |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.453 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Shape | V |
| Outside Diameter | 5.125 INCHES NOMINAL IN |
| Taper Major Diameter Location | AA END |
| Style Designator | PLAIN |
| Groove Depth | 0.242 INCHES NOMINAL IN |
| Bore Type | TAPERED |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Taper Bore Major Diameter | 1.621 INCHES NOMINAL IN |
| V Groove Angle in Deg | 60.0 |
| Securing Hole Quantity | 2 |
| Bolt Circle Diameter | 2.000 INCHES NOMINAL IN |
| Thread Size | 1/4-20 |
| Tapered Spline Largest Minor Diameter Location | BB END |
| Hole Location | SPACED 180DEG APART AROUND BORE |
| Counterbore Feature | NOT INCLUDED |
| Material | STEEL OVERALL |
| Face Width | 0.453 INCHES NOMINAL IN |
| Groove Width | 0.280 INCHES NOMINAL IN |
| Securing Location | PULLEY SURFACE |
| 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 |
|---|---|
| 2311760000 ITEM 6 | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc (USA) |
| PL2311760000 ITEM 6 | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc (USA) |
| 2310753000 PRIMARY | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc (USA) |
| Reference | Meaning |
|---|---|
| PL2311760000 | D/9 Drawing number reference only Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc |
| 2311760000 | D/9 Drawing number reference only Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc |
NSN 3020-01-421-1646 is a Pulley,groove, manufactured by Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-421-1646 has 3 manufacturer part numbers on file: 2311760000 ITEM 6 (Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc), PL2311760000 ITEM 6 (Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc), 2310753000 (Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-421-1649. Verify interchangeability with system specifications before substitution.
Key specifications for 2310753000: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Taper Bore Minor Diameter: 1.593 INCHES NOMINAL IN; Securing Method: THREADED HOLE(S). 28 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.