PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SMB282303Gear,worm

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 3020-00-351-4252 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-351-4252 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-351-4252. Primary manufacturer part number: SMB282303.
Features
  • Gear,worm — FSC 3020
  • Face Nominal Width: 0.562 INCHES IN
  • Pitch Diameter: 0.3330 INCHES NOMINAL IN
  • Nominal Distance Between Body Face and Protruding Hub End: 0.188 INCHES FIRST END IN
  • Attachment Method: SLOT
  • Nominal Overall Length: 0.750 INCHES IN
  • Thread Form Direction: RIGHT-HAND
  • Thread Form Quantity: 1
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear,worm, cataloged under National Stock Number 3020-00-351-4252, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN3020-00-351-4252
Primary Part NumberSMB282303
Item NameGear,worm
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Face Nominal Width0.562 INCHES IN
Pitch Diameter0.3330 INCHES NOMINAL IN
Nominal Distance Between Body Face and Protruding Hub End0.188 INCHES FIRST END IN
Attachment MethodSLOT
Nominal Overall Length0.750 INCHES IN
Thread Form DirectionRIGHT-HAND
Thread Form Quantity1
Nominal Outside Diameter0.375 INCHES IN
Pressure Angle14.5000 DEGREES
Hub Nominal Diameter0.260 INCHES FIRST END IN
Bore Nominal Diameter0.188 INCHES BOTH ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5310-00-090-0406 INTERCHANGEABLE
Washer,flat
5940-00-549-444410-409-3 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
5305-00-814-4847104093 INTERCHANGEABLE
Screw,machine
L3harris Technologies, Inc. Dba Harris Corporation
Cross-Reference Index
Part NumberManufacturer
SMB282303 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
SMB282303REVB Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
104093 PRIMARY Viking Technologies, Ltd. (USA)
Related Parts
5310-00-090-0406INTERCHANGEABLE
WASHER,FLAT
5940-00-549-4444INTERCHANGEABLE
TERMINAL,STUD
10-409-3
5305-00-814-4847INTERCHANGEABLE
SCREW,MACHINE
104093

Frequently Asked Questions

What is NSN 3020-00-351-4252?

NSN 3020-00-351-4252 is a Gear,worm, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-351-4252?

NSN 3020-00-351-4252 has 3 cross-referenced part numbers: SMB282303 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), SMB282303REVB (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 104093 (Viking Technologies, Ltd.).

What NSN replaces 3020-00-351-4252?

There are 3 known substitutes for 3020-00-351-4252: 5310-00-090-0406, 5940-00-549-4444, 5305-00-814-4847. Verify interchangeability with system specifications before substitution.

What are the specifications of SMB282303?

Key specifications for SMB282303: Face Nominal Width: 0.562 INCHES IN; Pitch Diameter: 0.3330 INCHES NOMINAL IN; Nominal Distance Between Body Face and Protruding Hub End: 0.188 INCHES FIRST END IN; Attachment Method: SLOT. 11 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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