PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

38631Pulley,groove

Exstar International Corporation · NSN 3020-01-395-7337 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-395-7337 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-395-7337. Primary manufacturer part number: 38631.
Features
  • Pulley,groove — FSC 3020
  • Bore Feature: INCLUDED
  • Lightening Hole: NOT INCLUDED
  • Style Designator: PLAIN
  • Furnished Items: KEYING FACILITY
  • Keyway Width: 0.188 INCHES NOMINAL IN
  • Bore Length: 0.750 INCHES NOMINAL IN
  • Bore Diameter: 0.875 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Pulley,groove, cataloged under National Stock Number 3020-01-395-7337, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Exstar International Corporation. Government technical data includes 21 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-01-395-7337
Primary Part Number38631
Item NamePulley,groove
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerExstar International Corporation
StatusACTIVE
Bore FeatureINCLUDED
Lightening HoleNOT INCLUDED
Style DesignatorPLAIN
Furnished ItemsKEYING FACILITY
Keyway Width0.188 INCHES NOMINAL IN
Bore Length0.750 INCHES NOMINAL IN
Bore Diameter0.875 INCHES NOMINAL IN
Bore TypeSTRAIGHT
Groove Quantity1
BearingsNOT INCLUDED
Distance From Center of Bore to Bottom of Keyway0.094 INCHES NOMINAL IN
Outside Diameter3.360 INCHES NOMINAL IN
Design FormPLAIN
Face Width0.750 INCHES NOMINAL IN
Counterbore FeatureNOT INCLUDED
Pitch Diameter2.6000 INCHES NOMINAL IN
Groove ShapeV
Split Hub FeatureNOT INCLUDED
Quantity1
Keying Facility TypeKEYWAY
Integral Cooling VaneINCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5950-00-420-16128508284-1 INTERCHANGEABLE
Transformer,power
Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories
6140-00-484-1528MP405 INTERCHANGEABLE
Battery,storage
Avex Electronics Corp.
3950-01-217-8047 INTERCHANGEABLE
Winch,drum,power Operated
Cross-Reference Index
Part NumberManufacturer
38631 PRIMARY Exstar International Corporation (USA)
EX651-38631-2 Exstar International Corporation (USA)
Related Parts
5950-00-420-1612INTERCHANGEABLE
TRANSFORMER,POWER
8508284-1
6140-00-484-1528INTERCHANGEABLE
BATTERY,STORAGE
MP405
3950-01-217-8047INTERCHANGEABLE
WINCH,DRUM,POWER OPERATED

Frequently Asked Questions

What is NSN 3020-01-395-7337?

NSN 3020-01-395-7337 is a Pulley,groove, manufactured by Exstar International Corporation, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-395-7337?

NSN 3020-01-395-7337 has 2 cross-referenced part numbers: 38631 (Exstar International Corporation), EX651-38631-2 (Exstar International Corporation).

What NSN replaces 3020-01-395-7337?

There are 3 known substitutes for 3020-01-395-7337: 5950-00-420-1612, 6140-00-484-1528, 3950-01-217-8047. Verify interchangeability with system specifications before substitution.

What are the specifications of 38631?

Key specifications for 38631: Bore Feature: INCLUDED; Lightening Hole: NOT INCLUDED; Style Designator: PLAIN; Furnished Items: KEYING FACILITY. 22 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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