The Pulley,groove, cataloged under National Stock Number 3020-01-157-3669, 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 Oshkosh Defense Llc. Government technical data includes 28 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-157-3669 |
| Primary Part Number | 1318800 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 1.400 INCHES NOMINAL AA END IN |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 2.000 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Shape | V |
| Outside Diameter | 3.750 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Material Document and Classification | SAE 1020 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Groove Depth | 0.440 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Counterbore Depth | 0.700 INCHES NOMINAL IN |
| Groove Quantity | 2 |
| Counterbore Location | AA END |
| V Groove Angle in Deg | 36.5 |
| Protruding Hub Characteristic | PLAIN |
| Counterbore Diameter | 1.440 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 0.690 INCHES NOMINAL AA END IN |
| Counterbore Feature | INCLUDED |
| Bore Diameter | 0.875 INCHES NOMINAL IN |
| Material | STEEL COMP 1020 OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 1.310 INCHES NOMINAL IN |
| Groove Width | 0.380 INCHES NOMINAL IN |
| Lightening Hole | NOT INCLUDED |
| 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 |
|---|---|
| 1318800 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 1318800 | 5/9 Secondary reference Oshkosh Corp |
NSN 3020-01-157-3669 is a Pulley,groove, manufactured by Oshkosh Defense Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-157-3669 has 1 manufacturer part number on file: 1318800 (Oshkosh Defense Llc).
Key specifications for 1318800: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 1.400 INCHES NOMINAL AA END IN; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED. 28 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.