The Pulley,groove, cataloged under National Stock Number 3020-00-181-3068, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-181-3068 |
| Primary Part Number | 11661358 |
| 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 | 1.399 INCHES NOMINAL BB END IN |
| Hub Outside Diameter | 2.620 INCHES NOMINAL AA END IN |
| Bore Feature | INCLUDED |
| Securing Method | COMPRESSION |
| Split Hub Feature | INCLUDED |
| Bore Length | 1.750 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | OFFSET |
| Groove Shape | V |
| Keyway Spacing in Deg | 180.0 |
| Outside Diameter | 5.200 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Hub Split Location | THROUGH ONE WALL |
| Style Designator | WEBBED OR SPOKED |
| Groove Depth | 0.716 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 2 |
| V Groove Angle in Deg | 36.0 |
| Distance From Center of Bore to Bottom of Keyway | 0.464 INCHES NOMINAL IN |
| Keyway Width | 0.1885 INCHES MINIMUM AND 0.1905 INCHES MAXIMUM IN |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Surface Treatment | ENAMEL |
| Distance From Outside Flange/rim to Hub End and Location | 1.717 INCHES NOMINAL AA END AND 1.407 INCHES NOMINAL BB END IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.751 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN |
| Material | STEEL BODY |
| 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 |
|---|---|
| 11661358 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 3020001813068 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 3020-00-181-3068 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 3020-00-181-3068 has 1 manufacturer part number on file: 11661358 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 11661358: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 1.399 INCHES NOMINAL BB END IN; Hub Outside Diameter: 2.620 INCHES NOMINAL AA 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.