NSN 3020-01-453-2676 · NIIN 014532676 · Part number 25B11RSB
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 3020-01-453-2676 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-453-2676. Manufacturer of record part number: 25B11RSB.
Also searched as3020-01-453-2676 ·
3020014532676 ·
NIIN 014532676 ·
01-453-2676 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 66271 · 25B11RSB
Hub Outside Diameter: 0.562 INCHES NOMINAL AA END IN
Bore Length: 0.500 INCHES NOMINAL IN
Design Form: PLAIN
Tooth Pitch: 0.250 INCHES NOMINAL IN
Outside Diameter: 1.002 INCHES NOMINAL IN
Style Designator: PLAIN
Pitch Diameter: 0.752 INCHES NOMINAL IN
Identification
NSN: 3020-01-453-2676
NIIN: 014532676
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 25B11RSB
Manufacturer: Martin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc
General Description
The Sprocket Wheel, cataloged under National Stock Number 3020-01-453-2676, 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 15 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
Parameter
Value
NSN
3020-01-453-2676
Primary Part Number
25B11RSB
Item Name
Sprocket Wheel
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer
Martin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc
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 3020-01-453-2676?
NSN 3020-01-453-2676 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 3020-01-453-2676?
NSN 3020-01-453-2676 has 1 manufacturer part number on file: 25B11RSB (Martin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc).
What are the specifications of 25B11RSB?
Key specifications for 25B11RSB: Hub Outside Diameter: 0.562 INCHES NOMINAL AA END IN; Bore Length: 0.500 INCHES NOMINAL IN; Design Form: PLAIN; Tooth Pitch: 0.250 INCHES NOMINAL IN. 15 specifications are documented in the U.S. Government catalog.
Is NSN 3020-01-453-2676 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.