PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS25 1/2Pulley,groove

Emerson Electric Co Browning Mfg Div · NSN 3020-00-623-5324 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-623-5324 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-623-5324. Primary manufacturer part number: AS25 1/2.
Features
  • Pulley,groove — FSC 3020
  • Groove Width: 0.490 INCHES NOMINAL IN
  • Furnished Items and Quantity: SETSCREW,ONE EACH
  • Hole Location: IN CENTER OF GROOVE
  • Bearings: NOT INCLUDED
  • Counterbore Feature: NOT INCLUDED
  • Bore Type: STRAIGHT
  • Groove Quantity: 1
Applications
  • Applications requiring Steel Overall construction
General Description

The Pulley,groove, cataloged under National Stock Number 3020-00-623-5324, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Emerson Electric Co Browning Mfg Div. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-623-5324
Primary Part NumberAS25 1/2
Item NamePulley,groove
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerEmerson Electric Co Browning Mfg Div
StatusACTIVE
Groove Width0.490 INCHES NOMINAL IN
Furnished Items and QuantitySETSCREW,ONE EACH
Hole LocationIN CENTER OF GROOVE
BearingsNOT INCLUDED
Counterbore FeatureNOT INCLUDED
Bore TypeSTRAIGHT
Groove Quantity1
Design FormPLAIN
Face Width0.625 INCHES NOMINAL IN
Groove ShapeV
Style DesignatorPLAIN
Bore FeatureINCLUDED
Integral Cooling VaneNOT INCLUDED
Split Hub FeatureNOT INCLUDED
Securing MethodTHREADED HOLE(S)
Lightening HoleNOT INCLUDED
MaterialSTEEL OVERALL
Securing LocationPULLEY SURFACE
Standard V-Belt Section Designation for Which Designed4L AND A
Pitch Diameter2.300 INCHES NOMINAL IN
Bore Diameter0.500 INCHES NOMINAL IN
Securing Hole Quantity1
Thread Size0.312-18
Bore Length0.625 INCHES NOMINAL IN
V Groove Angle in Deg30.0
Outside Diameter2.500 INCHES NOMINAL IN
Groove Depth0.490 INCHES MINIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3439-00-372-4776AWSA5.18-79 E70S-3 0.045 12LB INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-00-593-2241AWSA5.18-79 E70S-3 0.035 2-1/2LB INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
6240-00-764-8237 INTERCHANGEABLE
Lamp,incandescent
3439-01-012-1003ER70S-3 INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-01-013-2800 INTERCHANGEABLE
Electrode,welding
Cross-Reference Index
Part NumberManufacturer
AS25 1/2 PRIMARY Emerson Electric Co Browning Mfg Div (USA)
AS25 PRIMARY Emerson Electric Co Browning Mfg Div (USA)
Related Parts
3439-00-372-4776INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.18-79 E70S-3 0.045 12LB
3439-00-593-2241INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.18-79 E70S-3 0.035 2-1/2LB
6240-00-764-8237INTERCHANGEABLE
LAMP,INCANDESCENT
3439-01-012-1003INTERCHANGEABLE
ELECTRODE,WELDING
ER70S-3
3439-01-013-2800INTERCHANGEABLE
ELECTRODE,WELDING

Frequently Asked Questions

What is NSN 3020-00-623-5324?

NSN 3020-00-623-5324 is a Pulley,groove, manufactured by Emerson Electric Co Browning Mfg Div, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-623-5324?

NSN 3020-00-623-5324 has 2 cross-referenced part numbers: AS25 1/2 (Emerson Electric Co Browning Mfg Div), AS25 (Emerson Electric Co Browning Mfg Div).

What NSN replaces 3020-00-623-5324?

There are 5 known substitutes for 3020-00-623-5324: 3439-00-372-4776, 3439-00-593-2241, 6240-00-764-8237 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS25 1/2?

Key specifications for AS25 1/2: Groove Width: 0.490 INCHES NOMINAL IN; Furnished Items and Quantity: SETSCREW,ONE EACH; Hole Location: IN CENTER OF GROOVE; Bearings: NOT INCLUDED. 27 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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