The Pulley,groove, cataloged under National Stock Number 3020-00-640-3097, 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 Borgwarner Pds (anderson), L.l.c.. Government technical data includes 30 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-640-3097 |
| Primary Part Number | 1918520 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Borgwarner Pds (anderson), L.l.c. |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 1.000 INCHES NOMINAL BOTH ENDS IN |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 2.063 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | OFFSET |
| Groove Shape | V |
| Outside Diameter | 3.313 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 1.688 INCHES MINIMUM AND 3.313 INCHES MAXIMUM IN |
| Groove Depth | 0.813 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Counterbore Depth | 0.750 INCHES NOMINAL IN |
| Groove Quantity | 2 |
| Counterbore Location | AA END |
| V Groove Angle in Deg | 34.0 |
| Counterbore Diameter | 1.313 INCHES NOMINAL IN |
| Distance From Center of Bore to Bottom of Keyway | 0.4025 INCHES MINIMUM AND 0.4085 INCHES MAXIMUM IN |
| Keyway Width | 0.126 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN |
| Unable to Decode | UNABLE TO DECODE |
| Counterbore Feature | INCLUDED |
| Bore Diameter | 0.6685 INCHES MINIMUM AND 0.6695 INCHES MAXIMUM IN |
| Material | IRON CAST OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 2.063 INCHES NOMINAL IN |
| Groove Width | 0.813 INCHES NOMINAL 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 |
|---|---|
| 1918520 PRIMARY | Borgwarner Pds (anderson), L.l.c. (USA) |
| 7375243 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 1918520 | 5/9 Secondary reference General Motors Corp Delco Remy Div |
| 1918520 | 5/9 Secondary reference General Motors Corp |
| 97913R1 | 5/2 Secondary reference U.S. Government activity |
| 97913R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 97913R1 | 5/2 Secondary reference U.S. Government activity |
NSN 3020-00-640-3097 is a Pulley,groove, manufactured by Borgwarner Pds (anderson), L.l.c., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-640-3097 has 2 manufacturer part numbers on file: 1918520 (Borgwarner Pds (anderson), L.l.c.), 7375243 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 1918520: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 1.000 INCHES NOMINAL BOTH ENDS IN; Bore Feature: INCLUDED; 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.