The Pulley,groove, cataloged under National Stock Number 3020-00-706-5503, 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 Emerson Electric Co Browning Mfg Div. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-706-5503 |
| Primary Part Number | NAK30 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Emerson Electric Co Browning Mfg Div |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 1.594 INCHES NOMINAL AA END IN |
| Bore Feature | INCLUDED |
| Bearing Quantity | 1 |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.781 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| Groove Shape | V |
| Outside Diameter | 3.050 INCHES NOMINAL IN |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 2.460 INCHES MINIMUM AND 2.800 INCHES MAXIMUM IN |
| Groove Depth | 0.500 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | INCLUDED |
| Groove Quantity | 1 |
| V Groove Angle in Deg | 38.0 |
| Protruding Hub Characteristic | PLAIN |
| Bearing Type | NEEDLE ROLLER |
| Unable to Decode | UNABLE TO DECODE |
| Surface Treatment | PAINT |
| Distance From Outside Flange/rim to Hub End and Location | 0.281 INCHES NOMINAL AA END AND 0.156 INCHES NOMINAL BB END IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.500 INCHES NOMINAL IN |
| Material | IRON CAST OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 0.656 INCHES NOMINAL IN |
| Groove Width | 0.500 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 |
|---|---|
| NAK30 PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
NSN 3020-00-706-5503 is a Pulley,groove, manufactured by Emerson Electric Co Browning Mfg Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-706-5503 has 1 manufacturer part number on file: NAK30 (Emerson Electric Co Browning Mfg Div).
Key specifications for NAK30: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 1.594 INCHES NOMINAL AA END IN; Bore Feature: INCLUDED; Bearing Quantity: 1. 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.