PartsTable TECHNICAL DATA SHEET
NSN 3020-01-453-3084Government record, cited

Sprocket Wheel3020-01-453-3084

NSN 3020-01-453-3084 · NIIN 014533084 · Part number 25B17
Martin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 66271
Government record, cited
NSN 3020-01-453-3084 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-453-3084. Manufacturer of record part number: 25B17.
Also searched as  3020-01-453-3084 · 3020014533084 · NIIN 014533084 · 01-453-3084 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 66271 · 25B17
Nearby stock numbers  ·
Features
  • Sprocket Wheel — FSC 3020
  • Hub Outside Diameter: 1.031 INCHES NOMINAL AA END IN
  • Bore Length: 0.500 INCHES NOMINAL IN
  • Design Form: PLAIN
  • Tooth Pitch: 0.250 INCHES NOMINAL IN
  • Outside Diameter: 1.487 INCHES NOMINAL IN
  • Style Designator: PLAIN
  • Pitch Diameter: 1.380 INCHES NOMINAL IN
Identification
  • NSN: 3020-01-453-3084
  • NIIN: 014533084
  • FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: 25B17
  • Manufacturer: Martin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc
General Description

The Sprocket Wheel, cataloged under National Stock Number 3020-01-453-3084, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Martin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-01-453-3084
Primary Part Number25B17
Item NameSprocket Wheel
FSC / FSG3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
ManufacturerMartin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc
StatusACTIVE
Hub Outside Diameter1.031 INCHES NOMINAL AA END IN
Bore Length0.500 INCHES NOMINAL IN
Design FormPLAIN
Tooth Pitch0.250 INCHES NOMINAL IN
Outside Diameter1.487 INCHES NOMINAL IN
Style DesignatorPLAIN
Pitch Diameter1.380 INCHES NOMINAL IN
Bore TypeSTRAIGHT
Teeth Row Quantity1
Teeth Quantity Per Row17
Hardness Rating Test MethodNOT RATED
Distance From Hub End to Flange End0.390 INCHES NOMINAL AA END IN
Tapered Hole SizeNUMBER 4
Bore Diameter0.250 INCHES NOMINAL IN
MaterialSTEEL
Face Width0.110 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
25B17 PRIMARY Martin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc (USA)
No interchangeability data on file.
Other items in FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3020-00-000-0091
GEAR,SPUR
3020-00-001-0027
3020-00-001-0027 · Item name not on file
3020-00-001-0028
3020-00-001-0028 · Item name not on file
3020-00-001-0063
3020-00-001-0063 · Item name not on file
3020-00-001-0064
3020-00-001-0064 · Item name not on file
3020-00-001-0066
3020-00-001-0066 · Item name not on file
3020-00-001-0071
3020-00-001-0071 · Item name not on file
3020-00-001-0072
3020-00-001-0072 · Item name not on file
Related Parts in Mechanical Power Transmission Equipment
3020-00-000-0091
GEAR,SPUR
3020-00-001-0027
3020-00-001-0027 · Item name not on file
3020-00-001-0028
3020-00-001-0028 · Item name not on file
3020-00-001-0063
3020-00-001-0063 · Item name not on file
3020-00-001-0064
3020-00-001-0064 · Item name not on file
3020-00-001-0066
3020-00-001-0066 · Item name not on file
3020-00-001-0071
3020-00-001-0071 · Item name not on file
3020-00-001-0072
3020-00-001-0072 · Item name not on file

Frequently Asked Questions

What is NSN 3020-01-453-3084?

NSN 3020-01-453-3084 is a Sprocket Wheel, manufactured by Martin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-01-453-3084?

NSN 3020-01-453-3084 has 1 manufacturer part number on file: 25B17 (Martin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc).

What are the specifications of 25B17?

Key specifications for 25B17: Hub Outside Diameter: 1.031 INCHES NOMINAL AA END IN; Bore Length: 0.500 INCHES NOMINAL IN; Design Form: PLAIN; Tooth Pitch: 0.250 INCHES NOMINAL IN. 16 specifications are documented in the U.S. Government catalog.

Is NSN 3020-01-453-3084 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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