PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

70621Washer,lock

Cummins Inc. · NSN 5310-01-081-8470 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-081-8470 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-081-8470. Primary manufacturer part number: 70621.
Features
  • Washer,lock — FSC 5310
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Surface Treatment: CADMIUM OVERALL
  • Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM55.0 ROCKWELL C MAXIMUM
  • Outside Diameter: 0.334 INCHES NOMINAL0.334 INCHES NOMINAL IN
  • Material Thickness: 0.062 INCHES NOMINAL0.062 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Hole Diameter: 0.194 INCHES MINIMUM AND 0.194 INCHES MINIMUM AND 0.202 INCHES MAXIMUM0.202 INCHES MAXIMUM IN
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 5310-01-081-8470, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 7 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-081-8470
Primary Part Number70621
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCummins Inc.
StatusACTIVE
Style DesignatorSPLIT HELICAL-RIGHT HAND
Surface TreatmentCADMIUM OVERALL
Hardness Rating45.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM55.0 ROCKWELL C MAXIMUM
Outside Diameter0.334 INCHES NOMINAL0.334 INCHES NOMINAL IN
Material Thickness0.062 INCHES NOMINAL0.062 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Hole Diameter0.194 INCHES MINIMUM AND 0.194 INCHES MINIMUM AND 0.202 INCHES MAXIMUM0.202 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5940-00-140-1681 INTERCHANGEABLE
Terminal,stud
7530-00-465-5865 INTERCHANGEABLE
Label
4820-00-864-5362TCL100FGS55B1C INTERCHANGEABLE
Valve,expansion
Emerson Electric Co Alco Controls Div
5930-01-078-68357062-1 INTERCHANGEABLE
Cover,switch Actuator,nonluminou
C & K Components, Llc Div C & K Components
Cross-Reference Index
Part NumberManufacturer
70621 PRIMARY Cummins Inc. (USA)
Related Parts
5940-00-140-1681INTERCHANGEABLE
TERMINAL,STUD
7530-00-465-5865INTERCHANGEABLE
LABEL
4820-00-864-5362INTERCHANGEABLE
VALVE,EXPANSION
TCL100FGS55B1C
5930-01-078-6835INTERCHANGEABLE
COVER,SWITCH ACTUATOR,NONLUMINOU
7062-1

Frequently Asked Questions

What is NSN 5310-01-081-8470?

NSN 5310-01-081-8470 is a Washer,lock, manufactured by Cummins Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-081-8470?

NSN 5310-01-081-8470 has 1 cross-referenced part number: 70621 (Cummins Inc.).

What NSN replaces 5310-01-081-8470?

There are 4 known substitutes for 5310-01-081-8470: 5940-00-140-1681, 7530-00-465-5865, 4820-00-864-5362 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 70621?

Key specifications for 70621: Style Designator: SPLIT HELICAL-RIGHT HAND; Surface Treatment: CADMIUM OVERALL; Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM55.0 ROCKWELL C MAXIMUM; Outside Diameter: 0.334 INCHES NOMINAL0.334 INCHES NOMINAL IN. 7 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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