The Pulley,groove, cataloged under National Stock Number 3020-01-209-5982, 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 Lockheed Martin Sippican, Inc. Div Communication Division. Government technical data includes 22 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 | 3020-01-209-5982 |
| Primary Part Number | D135714-1 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lockheed Martin Sippican, Inc. Div Communication Division |
| Status | ACTIVE |
| Bore Feature | NOT INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 2.000 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Outside Diameter | 15.880 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | PLAIN |
| Pitch Diameter | 14.880 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Protruding Hub Characteristic | PLAIN |
| Keyway Width | 0.380 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Unable to Decode | UNABLE TO DECODE |
| Surface Treatment | PASSIVATE |
| Distance From Outside Flange/rim to Hub End and Location | 0.440 INCHES NOMINAL BOTH ENDS IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 2.750 INCHES MINIMUM AND 2.751 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Furnished Items | KEYING FACILITY |
| Face Width | 1.120 INCHES NOMINAL IN |
| Lightening Hole | 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 |
|---|---|
| D135714-1 PRIMARY | Lockheed Martin Sippican, Inc. Div Communication Division (USA) |
NSN 3020-01-209-5982 is a Pulley,groove, manufactured by Lockheed Martin Sippican, Inc. Div Communication Division, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-209-5982 has 1 manufacturer part number on file: D135714-1 (Lockheed Martin Sippican, Inc. Div Communication Division).
Key specifications for D135714-1: Bore Feature: NOT INCLUDED; Split Hub Feature: NOT INCLUDED; Bore Length: 2.000 INCHES NOMINAL IN; Design Form: PLAIN. 22 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.