PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26351Washer,lock

Prestolite Electric Inc · NSN 5310-01-210-0819 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-210-0819 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-210-0819. Primary manufacturer part number: 26351.
Features
  • Washer,lock — FSC 5310
  • Outside Diameter: 0.683 INCHES MAXIMUM IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material Thickness: 0.094 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
  • Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
  • Material: STEEL OVERALL
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 5310-01-210-0819, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Prestolite Electric Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN5310-01-210-0819
Primary Part Number26351
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerPrestolite Electric Inc
StatusACTIVE
Outside Diameter0.683 INCHES MAXIMUM IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Material Thickness0.094 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
Hardness Rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
Surface TreatmentCADMIUM AND CHROMATE OVERALL
MaterialSTEEL OVERALL
Hole Diameter0.382 INCHES MINIMUM AND 0.393 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3455-00-236-237719647 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
5360-00-246-9911393044 INTERCHANGEABLE
Spring,helical,extension
Am General Llc
3455-00-254-8468C152 INTERCHANGEABLE
Cutter,milling,convex
F & D Tool Co Inc
5970-00-300-3918 INTERCHANGEABLE
Insulator,standoff
6605-00-329-3386 INTERCHANGEABLE
Wheel Assy,fourth
5985-01-102-6348856-5298-1 INTERCHANGEABLE
Coupler,directional
Ar Worldwide Reciever Systems Llc
2010-01-118-1008806730311 INTERCHANGEABLE
Stave Set,bearing,stave Shaped
Duramax Inc Duramax Marine Div
5365-01-139-476326351 INTERCHANGEABLE
Shim
Moog Inc. Dba Ampac-Isp Corp
5905-01-307-969726351 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5325-01-584-0334MH121 INTERCHANGEABLE
Grommet,aircraft,ma
Lift-a-Loft, Llc
Cross-Reference Index
Part NumberManufacturer
26351 Prestolite Electric Inc (USA)
26351 PRIMARY Prestolite Electric Inc (USA)
Related Parts
3455-00-236-2377INTERCHANGEABLE
REAMER,MACHINE
19647
5360-00-246-9911INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
393044
3455-00-254-8468INTERCHANGEABLE
CUTTER,MILLING,CONVEX
C152
5970-00-300-3918INTERCHANGEABLE
INSULATOR,STANDOFF
6605-00-329-3386INTERCHANGEABLE
WHEEL ASSY,FOURTH
5985-01-102-6348INTERCHANGEABLE
COUPLER,DIRECTIONAL
856-5298-1
2010-01-118-1008INTERCHANGEABLE
STAVE SET,BEARING,STAVE SHAPED
806730311
5365-01-139-4763INTERCHANGEABLE
SHIM
26351
5905-01-307-9697INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
26351
5325-01-584-0334INTERCHANGEABLE
GROMMET,AIRCRAFT,MA
MH121

Frequently Asked Questions

What is NSN 5310-01-210-0819?

NSN 5310-01-210-0819 is a Washer,lock, manufactured by Prestolite Electric Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-210-0819?

NSN 5310-01-210-0819 has 2 cross-referenced part numbers: 26351 (Prestolite Electric Inc), 26351 (Prestolite Electric Inc).

What NSN replaces 5310-01-210-0819?

There are 10 known substitutes for 5310-01-210-0819: 3455-00-236-2377, 5360-00-246-9911, 3455-00-254-8468 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 26351?

Key specifications for 26351: Outside Diameter: 0.683 INCHES MAXIMUM IN; Style Designator: SPLIT HELICAL-RIGHT HAND; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Thickness: 0.094 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN. 8 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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