PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1001172Gear,spur

Ametek, Inc. Dba Aerospace Gst Div Aerospace · NSN 3020-00-018-4731 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-018-4731 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-018-4731. Primary manufacturer part number: 1001172.
Features
  • Gear,spur — FSC 3020
  • Teeth Quantity: 54
  • Pitch Diameter: 0.5625 INCHES NOMINAL IN
  • Hub Nominal Diameter: 0.312 INCHES FIRST END IN
  • Bore Nominal Diameter: 0.897 INCHES BOTH ENDS IN
  • Surface Treatment: PASSIVATE OVERALL
  • Nominal Distance Between Body Face and Protruding Hub End: 0.202 INCHES FIRST END IN
  • Nominal Outside Diameter: 0.583 INCHES IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 303SE Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-018-4731, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Ametek, Inc. Dba Aerospace Gst Div Aerospace. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-018-4731
Primary Part Number1001172
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAmetek, Inc. Dba Aerospace Gst Div Aerospace
StatusACTIVE
Teeth Quantity54
Pitch Diameter0.5625 INCHES NOMINAL IN
Hub Nominal Diameter0.312 INCHES FIRST END IN
Bore Nominal Diameter0.897 INCHES BOTH ENDS IN
Surface TreatmentPASSIVATE OVERALL
Nominal Distance Between Body Face and Protruding Hub End0.202 INCHES FIRST END IN
Nominal Outside Diameter0.583 INCHES IN
Face Nominal Width0.110 INCHES IN
Precision ClassificationQUALITY NUMBER 10 OR QUALITY NUMBER 11
Style DesignatorPROTRUDING HUB
Hub Style DesignatorPLAIN FIRST END
Tooth FormSTANDARD
MaterialSTEEL COMP 303SE OVERALL
Backlash DesignationGRADE B
Pressure Angle20.0000 DEGREES
Material Document and ClassificationQQ-S-764,TYPE 303SE,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Bore StylePLAIN BOTH ENDS
Body StylePLAIN, SOLID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6150-01-557-96831001172 INTERCHANGEABLE
Cable Assembly,special Purpose,e
General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp
Cross-Reference Index
Part NumberManufacturer
1001172 PRIMARY Ametek, Inc. Dba Aerospace Gst Div Aerospace (USA)
1001172 L3harris Interstate Electronics Corporation (USA)
Related Parts
6150-01-557-9683INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
1001172

Frequently Asked Questions

What is NSN 3020-00-018-4731?

NSN 3020-00-018-4731 is a Gear,spur, manufactured by Ametek, Inc. Dba Aerospace Gst Div Aerospace, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-018-4731?

NSN 3020-00-018-4731 has 2 cross-referenced part numbers: 1001172 (Ametek, Inc. Dba Aerospace Gst Div Aerospace), 1001172 (L3harris Interstate Electronics Corporation).

What NSN replaces 3020-00-018-4731?

There is 1 known substitute for 3020-00-018-4731: 6150-01-557-9683. Verify interchangeability with system specifications before substitution.

What are the specifications of 1001172?

Key specifications for 1001172: Teeth Quantity: 54; Pitch Diameter: 0.5625 INCHES NOMINAL IN; Hub Nominal Diameter: 0.312 INCHES FIRST END IN; Bore Nominal Diameter: 0.897 INCHES BOTH ENDS IN. 18 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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