PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51102Washer,shouldered

Caterpillar Work Tools, Inc Dba Caterpillar · NSN 5310-01-187-6114 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-187-6114 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-187-6114. Primary manufacturer part number: 51102.
Features
  • Washer,shouldered — FSC 5310
  • Material Thickness: 0.320 INCHES NOMINAL IN
  • Shoulder Height: 0.430 INCHES NOMINAL IN
  • Hole Diameter: 0.530 INCHES NOMINAL IN
  • Outside Diameter: 2.750 INCHES NOMINAL IN
  • Style Designator: SHOULDERED
  • Shoulder Diameter: 1.860 INCHES NOMINAL IN
  • 1 verified cross-reference
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,shouldered, cataloged under National Stock Number 5310-01-187-6114, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Work Tools, Inc Dba Caterpillar. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-187-6114
Primary Part Number51102
Item NameWasher,shouldered
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCaterpillar Work Tools, Inc Dba Caterpillar
StatusACTIVE
Material Thickness0.320 INCHES NOMINAL IN
Shoulder Height0.430 INCHES NOMINAL IN
Hole Diameter0.530 INCHES NOMINAL IN
Outside Diameter2.750 INCHES NOMINAL IN
Style DesignatorSHOULDERED
Shoulder Diameter1.860 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4730-00-278-85758-6 130139B INTERCHANGEABLE
Reducer,pipe
Sae International Dba Sae International
5310-00-350-556051102 INTERCHANGEABLE
Washer
Kenworth Truck Co a Div of Paccar Inc
3020-00-489-123951102 INTERCHANGEABLE
Pulley,groove
Overhead Door Corp Indiana Div
5950-00-508-2347 INTERCHANGEABLE
Transformer,power
5815-00-675-4342SCB69766 INTERCHANGEABLE
Bell,stop
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4240-00-706-20235110-2 INTERCHANGEABLE
Lock,plunger,disconnect
Air-Lock, Incorporated
3110-01-075-157651102 INTERCHANGEABLE
Bearing,ball,thrust
Skf Usa Inc.
5820-01-219-905251102 INTERCHANGEABLE
Strap,restraining
Joint Electronics Type Designation System
9150-01-394-251651102 INTERCHANGEABLE
Lubricant,antiseiz
Loctite Corp
Cross-Reference Index
Part NumberManufacturer
51102 Caterpillar Work Tools, Inc Dba Caterpillar (USA)
Related Parts
4730-00-278-8575INTERCHANGEABLE
REDUCER,PIPE
8-6 130139B
5310-00-350-5560INTERCHANGEABLE
WASHER
51102
3020-00-489-1239INTERCHANGEABLE
PULLEY,GROOVE
51102
5950-00-508-2347INTERCHANGEABLE
TRANSFORMER,POWER
5815-00-675-4342INTERCHANGEABLE
BELL,STOP
SCB69766
4240-00-706-2023INTERCHANGEABLE
LOCK,PLUNGER,DISCONNECT
5110-2
3110-01-075-1576INTERCHANGEABLE
BEARING,BALL,THRUST
51102
5820-01-219-9052INTERCHANGEABLE
STRAP,RESTRAINING
51102
9150-01-394-2516INTERCHANGEABLE
LUBRICANT,ANTISEIZ
51102

Frequently Asked Questions

What is NSN 5310-01-187-6114?

NSN 5310-01-187-6114 is a Washer,shouldered, manufactured by Caterpillar Work Tools, Inc Dba Caterpillar, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-187-6114?

NSN 5310-01-187-6114 has 1 cross-referenced part number: 51102 (Caterpillar Work Tools, Inc Dba Caterpillar).

What NSN replaces 5310-01-187-6114?

There are 9 known substitutes for 5310-01-187-6114: 4730-00-278-8575, 5310-00-350-5560, 3020-00-489-1239 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51102?

Key specifications for 51102: Material Thickness: 0.320 INCHES NOMINAL IN; Shoulder Height: 0.430 INCHES NOMINAL IN; Hole Diameter: 0.530 INCHES NOMINAL IN; Outside Diameter: 2.750 INCHES NOMINAL IN. 6 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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