PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30700-4Gear,bevel

L3harris Interstate Electronics Corporation · NSN 3020-00-139-4139 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-139-4139 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-139-4139. Primary manufacturer part number: 30700-4.
Features
  • Gear,bevel — FSC 3020
  • Material Document and Classification: QQ-S-764,TYPE 303,COND A FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-764,TYPE 303SE,COND A FED SPEC 2ND MATERIAL RESPONSE OVERALL
  • Attachment Method: MOUNTING HOLE
  • Pressure Angle: 20.0000 DEGREES
  • Mounting Hole Thread Series Designator: UNF TRANSVERSELY THROUGH HUB FIRST END
  • Teeth Type: STRAIGHT
  • Pitch Angle: 45.0000 DEGREES
  • Body Style: PLAIN, SOLID
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 303 or Steel Comp 303SE Overall construction
General Description

The Gear,bevel, cataloged under National Stock Number 3020-00-139-4139, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is L3harris Interstate Electronics Corporation. Government technical data includes 23 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-139-4139
Primary Part Number30700-4
Item NameGear,bevel
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerL3harris Interstate Electronics Corporation
StatusACTIVE
Material Document and ClassificationQQ-S-764,TYPE 303,COND A FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-764,TYPE 303SE,COND A FED SPEC 2ND MATERIAL RESPONSE OVERALL
Attachment MethodMOUNTING HOLE
Pressure Angle20.0000 DEGREES
Mounting Hole Thread Series DesignatorUNF TRANSVERSELY THROUGH HUB FIRST END
Teeth TypeSTRAIGHT
Pitch Angle45.0000 DEGREES
Body StylePLAIN, SOLID
Pitch Diameter0.2812 INCHES NOMINAL IN
Mounting Hole Nominal Thread Size0.060 INCHES TRANSVERSELY THROUGH HUB FIRST END IN
Nominal Overall Length0.406 INCHES IN
Face Nominal Width0.062 INCHES IN
Mounting Hole Type and Quantity2 THREADED TRANSVERSELY THROUGH HUB FIRST END
Surface TreatmentPASSIVATE OVERALL
Nominal Outside Diameter0.327 INCHES IN
Style DesignatorPERIPHERAL FACE, BACK HUB PROTRUDING
Nominal Distance Between Body Face and Protruding Hub End0.312 INCHES SECOND END IN
Bore StylePLAIN BOTH ENDS
Hub Nominal Diameter0.250 INCHES FIRST END IN
Hub Style DesignatorPLAIN FIRST END
Surface Treatment Document and ClassificationMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
Teeth Quantity30
Bore Nominal Diameter0.156 INCHES BOTH ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6640-00-006-6781 INTERCHANGEABLE
Furnace,muffle,laboratory
5920-00-285-0227 INTERCHANGEABLE
Fuse,cartridge
5110-00-595-927201062 INTERCHANGEABLE
Reamer,hand
Chadwick & Trefethen, Inc.
5999-00-804-716966096-357 INTERCHANGEABLE
Delay Line
Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
5325-01-067-543830700 INTERCHANGEABLE
Grommet,nonmetallic
Truck-Lite Co., Llc
5360-01-116-4973307-00 INTERCHANGEABLE
Spring,helical,compression
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4720-01-277-5449307004 INTERCHANGEABLE
Hose,nonmetallic
Gates Corporation
3030-01-682-0139307004 INTERCHANGEABLE
Belt,v
Hamilton Jet, Inc.
Cross-Reference Index
Part NumberManufacturer
30700 L3harris Interstate Electronics Corporation (USA)
30700-4 PRIMARY L3harris Interstate Electronics Corporation (USA)
Related Parts
6640-00-006-6781INTERCHANGEABLE
FURNACE,MUFFLE,LABORATORY
5920-00-285-0227INTERCHANGEABLE
FUSE,CARTRIDGE
5110-00-595-9272INTERCHANGEABLE
REAMER,HAND
01062
5999-00-804-7169INTERCHANGEABLE
DELAY LINE
66096-357
5325-01-067-5438INTERCHANGEABLE
GROMMET,NONMETALLIC
30700
5360-01-116-4973INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
307-00
4720-01-277-5449INTERCHANGEABLE
HOSE,NONMETALLIC
307004
3030-01-682-0139INTERCHANGEABLE
BELT,V
307004

Frequently Asked Questions

What is NSN 3020-00-139-4139?

NSN 3020-00-139-4139 is a Gear,bevel, manufactured by L3harris Interstate Electronics Corporation, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-139-4139?

NSN 3020-00-139-4139 has 2 cross-referenced part numbers: 30700 (L3harris Interstate Electronics Corporation), 30700-4 (L3harris Interstate Electronics Corporation).

What NSN replaces 3020-00-139-4139?

There are 8 known substitutes for 3020-00-139-4139: 6640-00-006-6781, 5920-00-285-0227, 5110-00-595-9272 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30700-4?

Key specifications for 30700-4: Material Document and Classification: QQ-S-764,TYPE 303,COND A FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-764,TYPE 303SE,COND A FED SPEC 2ND MATERIAL RESPONSE OVERALL; Attachment Method: MOUNTING HOLE; Pressure Angle: 20.0000 DEGREES; Mounting Hole Thread Series Designator: UNF TRANSVERSELY THROUGH HUB FIRST END. 23 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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