PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G27Gear,spur

Altra Industrial Motion Corp. · NSN 3020-01-258-8100 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-258-8100 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-258-8100. Primary manufacturer part number: G27.
Features
  • Gear,spur — FSC 3020
  • 2 verified cross-references
  • Primary manufacturer: Altra Industrial Motion Corp.
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear,spur, cataloged under National Stock Number 3020-01-258-8100, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Altra Industrial Motion Corp.. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameGear,spur
FSC / FSG3020 — No Item Name Available (FSG 30)
ManufacturersAltra Industrial Motion Corp. (CAGE 71041); The Electric Tachometer Corp. (CAGE 20049)
Technical Specifications
ParameterValue
NSN3020-01-258-8100
Primary Part NumberG27
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3110-00-156-1769 INTERCHANGEABLE
Bearing,ball,thrust
5310-00-216-8026BS4-1495PC12 INTERCHANGEABLE
Nut,cap,special
Circor Naval Solutions Llc Dba Warren Pumps
4530-00-449-48535-13-2074-22 INTERCHANGEABLE
Valve Assembly,actuating
W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center
5330-00-580-6061 INTERCHANGEABLE
Ring,wiper
6685-00-671-1143 INTERCHANGEABLE
Gage,pressure,dial Indicating
4930-01-103-91265806 INTERCHANGEABLE
Adapter,grease Gun Coupling
B. W. Rogers Company
5120-01-145-0281G27 INTERCHANGEABLE
Riveter,blind,hand
Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace
2520-01-321-376327G466131 INTERCHANGEABLE
Cover,transmission
Karl Senner, L.l.c. Dba Karl Senner Inc
5120-01-393-1538 INTERCHANGEABLE
Riveter,blind,hand
5120-01-491-9353G27 INTERCHANGEABLE
Riveter,blind,hand
U.s. Industrial Tool and Supply Company Dba Usit Co
Cross-Reference Index
Part NumberManufacturer
G27 Altra Industrial Motion Corp. (USA)
A4437 The Electric Tachometer Corp. (USA)
Related Parts
3110-00-156-1769INTERCHANGEABLE
BEARING,BALL,THRUST
5310-00-216-8026INTERCHANGEABLE
NUT,CAP,SPECIAL
BS4-1495PC12
4530-00-449-4853INTERCHANGEABLE
VALVE ASSEMBLY,ACTUATING
5-13-2074-22
5330-00-580-6061INTERCHANGEABLE
RING,WIPER
6685-00-671-1143INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
4930-01-103-9126INTERCHANGEABLE
ADAPTER,GREASE GUN COUPLING
5806
5120-01-145-0281INTERCHANGEABLE
RIVETER,BLIND,HAND
G27
2520-01-321-3763INTERCHANGEABLE
COVER,TRANSMISSION
27G466131
5120-01-393-1538INTERCHANGEABLE
RIVETER,BLIND,HAND
5120-01-491-9353INTERCHANGEABLE
RIVETER,BLIND,HAND
G27

Frequently Asked Questions

What is NSN 3020-01-258-8100?

NSN 3020-01-258-8100 is a Gear,spur, manufactured by Altra Industrial Motion Corp., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-258-8100?

NSN 3020-01-258-8100 has 2 cross-referenced part numbers: G27 (Altra Industrial Motion Corp.), A4437 (The Electric Tachometer Corp.).

What NSN replaces 3020-01-258-8100?

There are 10 known substitutes for 3020-01-258-8100: 3110-00-156-1769, 5310-00-216-8026, 4530-00-449-4853 and 7 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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