The Pulley,groove, cataloged under National Stock Number 3020-00-134-7946, 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 U S Army Tank Automotive Command Amsta-Im-Mm. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-134-7946 |
| Primary Part Number | 11664244 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 1.180 INCHES NOMINAL AA END IN |
| Hub Outside Diameter | 1.240 INCHES NOMINAL BB END IN |
| Bore Feature | INCLUDED |
| Securing Method | THREADED HOLE(S) |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.100 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Outside Diameter | 8.790 INCHES MINIMUM AND 8.810 INCHES MAXIMUM IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | WEBBED OR SPOKED |
| Material Document and Classification | QQ-I-652-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Groove Depth | 0.560 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 2 |
| V Groove Angle in Deg | 36.0 |
| Protruding Hub Characteristic | PLAIN |
| Distance From Center of Bore to Bottom of Keyway | 0.405 INCHES NOMINAL IN |
| Securing Hole Quantity | 3 |
| Thread Size | 3/8-16 |
| Keyway Width | 0.126 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Surface Treatment | ENAMEL |
| Hole Location | THROUGH PULLEY BODY,120 DEG APART,4.360 IN. DIA BC IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.670 INCHES MINIMUM AND 0.671 INCHES MAXIMUM IN |
| Material | IRON CAST UNS F11401 OR IRON CAST UNS F11701 OR IRON CAST UNS F12101 OR IRON CAST UNS F12401 OR IRON CAST UNS F12801 OR IRON CAST UNS F13101 OR IRON CAST UNS F13501 OR IRON CAST UNS F13801 OR IRON CAST UNS F14101 OVERALL |
| 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 |
|---|---|
| 11664244 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 3020001347946 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 3020-00-134-7946 is a Pulley,groove, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-134-7946 has 1 manufacturer part number on file: 11664244 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 11664244: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 1.180 INCHES NOMINAL AA END IN; Hub Outside Diameter: 1.240 INCHES NOMINAL BB END IN; Bore Feature: 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.