The Pulley,groove, cataloged under National Stock Number 3020-00-899-6713, 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 30 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-899-6713 |
| Primary Part Number | 10884985 |
| 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 |
| Bore Feature | INCLUDED |
| Securing Method | DRILLED HOLE |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.260 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | OFFSET |
| Groove Shape | V |
| Standard V-Belt Section Designation for Which Designed | A |
| Outside Diameter | 4.570 INCHES MINIMUM AND 4.620 INCHES MAXIMUM IN |
| Style Designator | WEBBED OR SPOKED |
| Material Document and Classification | QQ-I-652, CLASS 30 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.500 INCHES NOMINAL IN |
| Groove Depth | 0.430 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 4 |
| V Groove Angle in Deg | 36.0 |
| Securing Hole Quantity | 4 |
| Bolt Circle Diameter | 1.750 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.340 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE AND ENAMEL SEMIGLOSS |
| Distance From Outside Flange/rim to Hub End and Location | 1.080 INCHES NOMINAL BOTH ENDS IN |
| Hole Location | EVENLY SPACED ON BOLT CIRCLE |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.748 INCHES NOMINAL IN |
| Material | IRON CAST UNS F12101 OVERALL |
| Face Width | 2.300 INCHES NOMINAL IN |
| Groove Width | 0.380 INCHES NOMINAL IN |
| Securing Location | BOTH ENDS |
| 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 |
|---|---|
| 10884985 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3020-00-899-6713 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 3020-00-899-6713 has 1 manufacturer part number on file: 10884985 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 10884985: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: DRILLED HOLE; Split Hub Feature: NOT INCLUDED. 30 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.