PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

52638Cup,tapered Roller Bearing

The Timken Corporation · NSN 3110-00-100-0596 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-100-0596 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-100-0596. Primary manufacturer part number: 52638.
Features
  • Cup,tapered Roller Bearing — FSC 3110
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Style Designator: NORMAL ANGLE
  • Backface Corner Radius: 0.1250 INCHES NOMINAL IN
  • Outside Diameter: 6.3750 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • 15 verified cross-references
  • Primary manufacturer: The Timken Corporation
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Cup,tapered Roller Bearing, cataloged under National Stock Number 3110-00-100-0596, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is The Timken Corporation. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-100-0596
Primary Part Number52638
Item NameCup,tapered Roller Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusCANCELLED
Standard Tolerance DesignationAFBMA CLASS 2
Style DesignatorNORMAL ANGLE
Backface Corner Radius0.1250 INCHES NOMINAL IN
Outside Diameter6.3750 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2530-00-040-15608376238 INTERCHANGEABLE
Quadrant,landing Wheel
U S Army Tank Automotive Command Amsta-Im-Mm
6760-00-147-8875 INTERCHANGEABLE
Head,photographic Tripod
5915-00-226-526614121 INTERCHANGEABLE
Network,phase Changing
Torotel, Inc. Div Torotel Products, Inc.
5340-00-392-7816SM-B-157288 INTERCHANGEABLE
Plate,mending
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5365-00-429-2920 INTERCHANGEABLE
Spacer
8010-00-721-9479 INTERCHANGEABLE
Enamel
6610-00-909-219814121 INTERCHANGEABLE
Indicator,airspeed and Direction
Elbitamerica, Inc.
5940-00-983-6062 INTERCHANGEABLE
Terminal Board
5950-00-995-00991023830REVC INTERCHANGEABLE
Transformer,power
Lockheed Martin Corporation Div Rms - Mitchel Field
6680-01-090-435249207 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
Cross-Reference Index
Part NumberManufacturer
52638 Federal-Mogul Corp Government Sales Dept (USA)
52638 Tyson Bearing Co Div Skf Industries Inc (USA)
52638 The Timken Company (FRA)
103S68 Bendix Corp the (USA)
52638 Goodyear Tire and Rubber Co the (USA)
14121 Komatsu America Corporation (USA)
52638 Australian Timken Pty Ltd (AUS)
52638 Rbc Bearings Incorporated Div West Trenton Division (USA)
K52638 Skf France (FRA)
FFB187/01-TYPE ABMA 52638 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
103S68 Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) (USA)
52638 Paccar Government Group Co Yarrow Bay Office Pk (USA)
R14121 Komatsu America Corporation (USA)
52638 Ntn Bearing Corporation of America (USA)
52638 PRIMARY The Timken Corporation (USA)
Related Parts
2530-00-040-1560INTERCHANGEABLE
QUADRANT,LANDING WHEEL
8376238
6760-00-147-8875INTERCHANGEABLE
HEAD,PHOTOGRAPHIC TRIPOD
5915-00-226-5266INTERCHANGEABLE
NETWORK,PHASE CHANGING
14121
5340-00-392-7816INTERCHANGEABLE
PLATE,MENDING
SM-B-157288
5365-00-429-2920INTERCHANGEABLE
SPACER
8010-00-721-9479INTERCHANGEABLE
ENAMEL
6610-00-909-2198INTERCHANGEABLE
INDICATOR,AIRSPEED AND DIRECTION
14121
5940-00-983-6062INTERCHANGEABLE
TERMINAL BOARD
5950-00-995-0099INTERCHANGEABLE
TRANSFORMER,POWER
1023830REVC
6680-01-090-4352INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
49207
5305-01-108-9968INTERCHANGEABLE
SCREW
14121
3110-01-222-8853INTERCHANGEABLE
CUP,SEAL
52638

Frequently Asked Questions

What is NSN 3110-00-100-0596?

NSN 3110-00-100-0596 is a Cup,tapered Roller Bearing, manufactured by The Timken Corporation, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-100-0596?

NSN 3110-00-100-0596 has 15 cross-referenced part numbers: 52638 (Federal-Mogul Corp Government Sales Dept), 52638 (Tyson Bearing Co Div Skf Industries Inc), 52638 (The Timken Company), 103S68 (Bendix Corp the), 52638 (Goodyear Tire and Rubber Co the) and 10 more.

What NSN replaces 3110-00-100-0596?

There are 12 known substitutes for 3110-00-100-0596: 2530-00-040-1560, 6760-00-147-8875, 5915-00-226-5266 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 52638?

Key specifications for 52638: Standard Tolerance Designation: AFBMA CLASS 2; Overall Width: 1.1563 INCHES NOMINAL IN; Style Designator: NORMAL ANGLE; Backface Corner Radius: 0.1250 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-100-0596 still in active supply?

NSN 3110-00-100-0596 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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