PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFB187/01-288Bearing,roller,tapered

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 3110-00-100-4184 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-100-4184 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-100-4184. Primary manufacturer part number: FFB187/01-288.
Features
  • Bearing,roller,tapered — FSC 3110
  • Overall Outside Diameter: 4.0000 INCHES NOMINAL IN
  • Material: STEEL COMP 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E52100 CUP
  • Cone Corner Radius: 0.1400 INCHES NOMINAL IN
  • Material: STEEL COMP 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E52100 ROLLER
  • Backface Corner Radius: 0.1250 INCHES NOMINAL IN
  • Standout Width: 0.3125 INCHES NOMINAL IN
  • Cone Width: 1.4200 INCHES NOMINAL IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp 4320 or Steel Comp 4620 or Steel Comp 8620 or Steel Comp E52100 Cup construction
General Description

The Bearing,roller,tapered, cataloged under National Stock Number 3110-00-100-4184, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-100-4184
Primary Part NumberFFB187/01-288
Item NameBearing,roller,tapered
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Overall Outside Diameter4.0000 INCHES NOMINAL IN
MaterialSTEEL COMP 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E52100 CUP
Cone Corner Radius0.1400 INCHES NOMINAL IN
MaterialSTEEL COMP 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E52100 ROLLER
Backface Corner Radius0.1250 INCHES NOMINAL IN
Standout Width0.3125 INCHES NOMINAL IN
Cone Width1.4200 INCHES NOMINAL IN
Cup Width1.0625 INCHES NOMINAL IN
Style DesignatorSTRAIGHT BORE, NORMAL ANGLE
Bore Diameter1.7500 INCHES NOMINAL IN
Nondefinitive Spec/std Data751 TYPE
MaterialSTEEL RETAINER
MaterialSTEEL COMP 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E52100 CONE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3110-00-100-0300 INTERCHANGEABLE
Cup,tapered Roller Bearing
3010-00-244-7307L100-1 INTERCHANGEABLE
Coupling,shaft,flexible
Lovejoy, Llc Div Lovejoy
5340-00-275-4669L100-1 INTERCHANGEABLE
Hanger,sliding Door
Drexler Shower Door Co Inc
5330-00-370-8568 INTERCHANGEABLE
Gasket
3110-00-420-0533 INTERCHANGEABLE
Bearing,roller,tapered
6685-00-556-8811AC104 INTERCHANGEABLE
Indicator,pressure
Strube Inc
5340-00-801-1261B1900-144 INTERCHANGEABLE
Latch,rim
Simmons Fastener Corp an Amfast Corp
5985-00-953-037752752-2 INTERCHANGEABLE
Antenna
Naval Sea Systems Command
4730-01-065-9356 INTERCHANGEABLE
Adapter,straight,pipe to Boss
5445-01-633-4925L1001 INTERCHANGEABLE
Tower Support Group
Jaquith Industries Inc
Cross-Reference Index
Part NumberManufacturer
FFB187/01-288 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
522AND527 Abc/sunray Corp (USA)
527-522 Paccar Government Group Co Yarrow Bay Office Pk (USA)
L1001 Scott Huber Essick a Co of Figgie International Inc (USA)
AA59649-288 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
527-522 The Timken Corporation (USA)
FFB187TYPE751 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
FF-B-187/01 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
527-522 Federal-Mogul Corp Government Sales Dept (USA)
NW509 Clayton Hill Greenhouse Co Div Timothy Hill (USA)
A-A-59649 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
220X48 Paterson Gear Motor Div of Amtech Inc (USA)
MS19081-72 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
3110-00-100-0300INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
3010-00-244-7307INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
L100-1
5340-00-275-4669INTERCHANGEABLE
HANGER,SLIDING DOOR
L100-1
5330-00-370-8568INTERCHANGEABLE
GASKET
3110-00-420-0533INTERCHANGEABLE
BEARING,ROLLER,TAPERED
6685-00-556-8811INTERCHANGEABLE
INDICATOR,PRESSURE
AC104
5340-00-801-1261INTERCHANGEABLE
LATCH,RIM
B1900-144
5985-00-953-0377INTERCHANGEABLE
ANTENNA
52752-2
4730-01-065-9356INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO BOSS
5445-01-633-4925INTERCHANGEABLE
TOWER SUPPORT GROUP
L1001

Frequently Asked Questions

What is NSN 3110-00-100-4184?

NSN 3110-00-100-4184 is a Bearing,roller,tapered, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-100-4184?

NSN 3110-00-100-4184 has 13 cross-referenced part numbers: FFB187/01-288 (Federal Specifications Promulgated by General Services Administration Washington DC), 522AND527 (Abc/sunray Corp), 527-522 (Paccar Government Group Co Yarrow Bay Office Pk), L1001 (Scott Huber Essick a Co of Figgie International Inc), AA59649-288 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 8 more.

What NSN replaces 3110-00-100-4184?

There are 10 known substitutes for 3110-00-100-4184: 3110-00-100-0300, 3010-00-244-7307, 5340-00-275-4669 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FFB187/01-288?

Key specifications for FFB187/01-288: Overall Width: 1.3750 INCHES NOMINAL IN; Overall Outside Diameter: 4.0000 INCHES NOMINAL IN; Material: STEEL COMP 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E52100 CUP; Cone Corner Radius: 0.1400 INCHES NOMINAL IN. 14 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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