The Pulley,groove, cataloged under National Stock Number 3020-01-246-6633, 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 Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc. Government technical data includes 29 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-246-6633 |
| Primary Part Number | 39-2290-001 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Securing Method | THREADED HOLE(S) |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.813 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Shape | V |
| Outside Diameter | 4.749 INCHES MINIMUM AND 4.751 INCHES MAXIMUM IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | WEBBED OR SPOKED |
| Material Document and Classification | QQ-A-225/6, ALLOY 2024, T351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.699 INCHES MINIMUM AND 4.701 INCHES MAXIMUM IN |
| Groove Depth | 0.081 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 5 |
| V Groove Angle in Deg | 40.0 |
| Protruding Hub Characteristic | PLAIN |
| Distance From Center of Bore to Bottom of Keyway | 0.457 INCHES NOMINAL IN |
| Securing Hole Quantity | 2 |
| Thread Size | 1/4-28 |
| Keyway Width | 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Unable to Decode | UNABLE TO DECODE |
| Surface Treatment | ANODIZE |
| Distance From Outside Flange/rim to Hub End and Location | 0.375 INCHES MINIMUM AA END AND 0.500 INCHES MAXIMUM BB END IN |
| Hole Location | 0.281 IN. FROM HUB END IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.750 INCHES MINIMUM AND 0.751 INCHES MAXIMUM 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 |
|---|---|
| 39-2290-001 PRIMARY | Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc (USA) |
| Reference | Meaning |
|---|---|
| 39-2290-001 | 5/9 Secondary reference Alliant Defense Electronics Systems Inc |
| 39-2290-001 | 5/9 Secondary reference Kilgore Flares Company Llc |
NSN 3020-01-246-6633 is a Pulley,groove, manufactured by Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-246-6633 has 1 manufacturer part number on file: 39-2290-001 (Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc).
Key specifications for 39-2290-001: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: THREADED HOLE(S); Split Hub Feature: NOT INCLUDED. 29 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.