PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16636Gear,spur

Southern Gear & Machine Inc · NSN 3020-00-138-7893 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-138-7893 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-138-7893. Primary manufacturer part number: 16636.
Features
  • Gear,spur — FSC 3020
  • Material Document and Classification: QQ-S-764,TYPE 303,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Hub Style Designator: SPLIT FIRST END
  • Material: STEEL COMP 303 OVERALL
  • Face Nominal Width: 0.187 INCHES IN
  • Nominal Outside Diameter: 1.417 INCHES IN
  • Surface Treatment: PASSIVATE OVERALL
  • Clamping Surface Nominal Length: 0.370 INCHES FIRST END IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-138-7893, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Southern Gear & Machine Inc. Government technical data includes 20 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-138-7893
Primary Part Number16636
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerSouthern Gear & Machine Inc
StatusACTIVE
Material Document and ClassificationQQ-S-764,TYPE 303,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Hub Style DesignatorSPLIT FIRST END
MaterialSTEEL COMP 303 OVERALL
Face Nominal Width0.187 INCHES IN
Nominal Outside Diameter1.417 INCHES IN
Surface TreatmentPASSIVATE OVERALL
Clamping Surface Nominal Length0.370 INCHES FIRST END IN
Pressure Angle20.0000 DEGREES
Bore Nominal Diameter0.625 INCHES BOTH ENDS IN
Precision ClassificationQUALITY NUMBER 11
Pitch Diameter1.3743 INCHES MINIMUM AND 1.3750 INCHES MAXIMUM IN
Style DesignatorPROTRUDING HUB
Tooth FormSTANDARD
Bore StylePLAIN BOTH ENDS
Hub Nominal Diameter0.689 INCHES FIRST END IN
Body StylePLAIN, SOLID
Attachment MethodCLAMP
Nominal Overall Length0.590 INCHES IN
Nominal Distance Between Body Face and Protruding Hub End0.403 INCHES FIRST END IN
Teeth Quantity66
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-155-67460042971 INTERCHANGEABLE
Bearing,ball,annular
New Holland Construction
5330-00-448-082516-636 INTERCHANGEABLE
Gasket
Dresser Industries Inc Leroi Div
9540-00-542-2728 INTERCHANGEABLE
Angle,structural
5310-00-680-57801663-6 INTERCHANGEABLE
Washer,keyway
Eaton Aerospace, Llc Dba Jackson South
5306-01-188-682416636 INTERCHANGEABLE
Bolt,machine
Moog Inc. Dba Ampac-Isp Corp
5310-01-243-727916636 INTERCHANGEABLE
Nut
Leupold & Stevens Inc
4720-01-261-1036ST32D19-7 INTERCHANGEABLE
Hose Assembly,nonmetallic
Lockheed Martin Corp
5140-01-573-1999 INTERCHANGEABLE
Tool Box,portable
Cross-Reference Index
Part NumberManufacturer
16636 PRIMARY Southern Gear & Machine Inc (USA)
3022916-183-1 Lockheed Martin Corporation Div Lockheed Martin Systems & Global Solutions (USA)
Related Parts
3110-00-155-6746INTERCHANGEABLE
BEARING,BALL,ANNULAR
0042971
5330-00-448-0825INTERCHANGEABLE
GASKET
16-636
9540-00-542-2728INTERCHANGEABLE
ANGLE,STRUCTURAL
5310-00-680-5780INTERCHANGEABLE
WASHER,KEYWAY
1663-6
5306-01-188-6824INTERCHANGEABLE
BOLT,MACHINE
16636
5310-01-243-7279INTERCHANGEABLE
NUT
16636
4720-01-261-1036INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
ST32D19-7
5140-01-573-1999INTERCHANGEABLE
TOOL BOX,PORTABLE

Frequently Asked Questions

What is NSN 3020-00-138-7893?

NSN 3020-00-138-7893 is a Gear,spur, manufactured by Southern Gear & Machine Inc, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-138-7893?

NSN 3020-00-138-7893 has 2 cross-referenced part numbers: 16636 (Southern Gear & Machine Inc), 3022916-183-1 (Lockheed Martin Corporation Div Lockheed Martin Systems & Global Solutions).

What NSN replaces 3020-00-138-7893?

There are 8 known substitutes for 3020-00-138-7893: 3110-00-155-6746, 5330-00-448-0825, 9540-00-542-2728 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16636?

Key specifications for 16636: Material Document and Classification: QQ-S-764,TYPE 303,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Hub Style Designator: SPLIT FIRST END; Material: STEEL COMP 303 OVERALL; Face Nominal Width: 0.187 INCHES IN. 20 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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