PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

856-0003Washer,lock

Cummins Power Generation Inc. · NSN 5310-01-051-6858 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-051-6858 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-051-6858. Primary manufacturer part number: 856-0003.
Features
  • Washer,lock — FSC 5310
  • Material: STEEL OVERALL
  • Material Thickness: 0.031 INCHES NOMINAL0.031 INCHES NOMINAL IN
  • Outside Diameter: 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN
  • Hole Diameter: 0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN
  • Style Designator: FLAT EXTERNAL AND INTERNAL TEETH
  • 1 verified cross-reference
  • Primary manufacturer: Cummins Power Generation Inc.
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-051-6858, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cummins Power Generation Inc.. Government technical data includes 5 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-051-6858
Primary Part Number856-0003
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCummins Power Generation Inc.
StatusACTIVE
MaterialSTEEL OVERALL
Material Thickness0.031 INCHES NOMINAL0.031 INCHES NOMINAL IN
Outside Diameter0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN
Hole Diameter0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN
Style DesignatorFLAT EXTERNAL AND INTERNAL TEETH
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-157-0524A1578 INTERCHANGEABLE
Cam Follower,needle Bearing
Rbc Bearings Incorporated Div West Trenton Division
Cross-Reference Index
Part NumberManufacturer
856-0003 PRIMARY Cummins Power Generation Inc. (USA)
Related Parts
3110-00-157-0524INTERCHANGEABLE
CAM FOLLOWER,NEEDLE BEARING
A1578

Frequently Asked Questions

What is NSN 5310-01-051-6858?

NSN 5310-01-051-6858 is a Washer,lock, manufactured by Cummins Power Generation Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-051-6858?

NSN 5310-01-051-6858 has 1 cross-referenced part number: 856-0003 (Cummins Power Generation Inc.).

What NSN replaces 5310-01-051-6858?

There is 1 known substitute for 5310-01-051-6858: 3110-00-157-0524. Verify interchangeability with system specifications before substitution.

What are the specifications of 856-0003?

Key specifications for 856-0003: Material: STEEL OVERALL; Material Thickness: 0.031 INCHES NOMINAL0.031 INCHES NOMINAL IN; Outside Diameter: 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN; Hole Diameter: 0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN. 5 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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