PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16-1880Washer,lock

Eaton Corp Opns & Technical Center · NSN 5310-00-978-6103 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-978-6103 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-978-6103. Primary manufacturer part number: 16-1880.
Features
  • Washer,lock — FSC 5310
  • Surface Treatment: CADMIUM OVERALL
  • Material: STEEL OVERALL
  • Material Thickness: 0.015 INCHES NOMINAL IN
  • Outside Diameter: 0.430 INCHES NOMINAL IN
  • Style Designator: FLAT INTERNAL TEETH
  • Hole Diameter: 0.318 INCHES NOMINAL IN
  • 7 verified cross-references
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 5310-00-978-6103, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Corp Opns & Technical Center. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-978-6103
Primary Part Number16-1880
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEaton Corp Opns & Technical Center
StatusACTIVE
Surface TreatmentCADMIUM OVERALL
MaterialSTEEL OVERALL
Material Thickness0.015 INCHES NOMINAL IN
Outside Diameter0.430 INCHES NOMINAL IN
Style DesignatorFLAT INTERNAL TEETH
Hole Diameter0.318 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-017-8627 INTERCHANGEABLE
Washer,lock
5310-00-019-0676MS35333-109 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-00-022-8834NASM35333-108 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-00-022-8847MS35333-110 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-124-5620121804 INTERCHANGEABLE
Screw,cap,hexagon Head
Rolls-Royce Solutions America Inc
5310-00-188-0473 INTERCHANGEABLE
Washer,lock
5310-00-198-9343 INTERCHANGEABLE
Washer,lock
5310-00-282-9059373-0083-000 INTERCHANGEABLE
Washer,lock
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5310-00-432-9409 INTERCHANGEABLE
Washer,lock
5950-00-648-5622 INTERCHANGEABLE
Transformer,current
Cross-Reference Index
Part NumberManufacturer
8597908-001 General Motors Corp (USA)
1218-04 Zf Industrieantriebe Witten Gmbh (DEU)
0312-04-00 West Coast Lockwasher Co Dba W C L Co (USA)
16-1880 PRIMARY Eaton Corp Opns & Technical Center (USA)
8597908-001 Delco Electronics Corp Delco Systems Opns (USA)
FF-W-100C Federal Specifications Promulgated by General Services Administration Washington DC (USA)
16-1880 Fabrication Specialty Inc Dba Fabrication Specialty Inc (USA)
Related Parts
5310-00-017-8627INTERCHANGEABLE
WASHER,LOCK
5310-00-019-0676INTERCHANGEABLE
WASHER,LOCK
MS35333-109
5310-00-022-8834INTERCHANGEABLE
WASHER,LOCK
NASM35333-108
5310-00-022-8847INTERCHANGEABLE
WASHER,LOCK
MS35333-110
5305-00-124-5620INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
121804
5310-00-188-0473INTERCHANGEABLE
WASHER,LOCK
5310-00-198-9343INTERCHANGEABLE
WASHER,LOCK
5310-00-282-9059INTERCHANGEABLE
WASHER,LOCK
373-0083-000
5310-00-432-9409INTERCHANGEABLE
WASHER,LOCK
5950-00-648-5622INTERCHANGEABLE
TRANSFORMER,CURRENT
5310-00-814-4575INTERCHANGEABLE
WASHER,LOCK
5310-00-826-0325INTERCHANGEABLE
WASHER,LOCK
107003-517

Frequently Asked Questions

What is NSN 5310-00-978-6103?

NSN 5310-00-978-6103 is a Washer,lock, manufactured by Eaton Corp Opns & Technical Center, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-978-6103?

NSN 5310-00-978-6103 has 7 cross-referenced part numbers: 8597908-001 (General Motors Corp), 1218-04 (Zf Industrieantriebe Witten Gmbh), 0312-04-00 (West Coast Lockwasher Co Dba W C L Co), 16-1880 (Eaton Corp Opns & Technical Center), 8597908-001 (Delco Electronics Corp Delco Systems Opns) and 2 more.

What NSN replaces 5310-00-978-6103?

There are 12 known substitutes for 5310-00-978-6103: 5310-00-017-8627, 5310-00-019-0676, 5310-00-022-8834 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16-1880?

Key specifications for 16-1880: Surface Treatment: CADMIUM OVERALL; Material: STEEL OVERALL; Material Thickness: 0.015 INCHES NOMINAL IN; Outside Diameter: 0.430 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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