PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1718Washer,lock

Itw Shakeproof Automotive Products · NSN 5310-00-261-6189 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-261-6189 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-261-6189. Primary manufacturer part number: 1718.
Features
  • Washer,lock — FSC 5310
  • Outside Diameter: 0.594 INCHES MINIMUM AND 0.607 INCHES MAXIMUM IN
  • Style Designator: FLAT INTERNAL TEETH
  • Hole Diameter: 0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
  • Material Thickness: 0.030 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • 1 verified cross-reference
  • Primary manufacturer: Itw Shakeproof Automotive Products
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-261-6189, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Itw Shakeproof Automotive Products. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-261-6189
Primary Part Number1718
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerItw Shakeproof Automotive Products
StatusACTIVE
Outside Diameter0.594 INCHES MINIMUM AND 0.607 INCHES MAXIMUM IN
Style DesignatorFLAT INTERNAL TEETH
Hole Diameter0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
Material Thickness0.030 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5930-00-065-7759123SCEC185-1 INTERCHANGEABLE
Switch,pressure
Northrop Grumman Systems Corporation
6675-00-222-2542 INTERCHANGEABLE
Measurer,map
4820-00-421-04381718 INTERCHANGEABLE
Piston,poppet,valve
Droitcour Co
5905-00-463-93260816-0015 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Agilent Technologies, Inc. Div Agilent Technologies Headquarters
4330-00-469-112450127S4503-705797 INTERCHANGEABLE
Cover,fluid Filter
Naval Sea Systems Command
6320-00-480-7922171-8 INTERCHANGEABLE
Modification Kit,signal System
Lockheed Martin Corporation Div Rms
5930-00-756-8117242318R91 INTERCHANGEABLE
Switch,push-Pull
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5360-00-845-7428 INTERCHANGEABLE
Spring,helical,extension
5905-00-879-66391718 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5331-00-921-6774 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
1718 Itw Shakeproof Automotive Products (USA)
Related Parts
5930-00-065-7759INTERCHANGEABLE
SWITCH,PRESSURE
123SCEC185-1
6675-00-222-2542INTERCHANGEABLE
MEASURER,MAP
4820-00-421-0438INTERCHANGEABLE
PISTON,POPPET,VALVE
1718
5905-00-463-9326INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
0816-0015
4330-00-469-1124INTERCHANGEABLE
COVER,FLUID FILTER
50127S4503-705797
6320-00-480-7922INTERCHANGEABLE
MODIFICATION KIT,SIGNAL SYSTEM
171-8
5930-00-756-8117INTERCHANGEABLE
SWITCH,PUSH-PULL
242318R91
5360-00-845-7428INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
5905-00-879-6639INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
1718
5331-00-921-6774INTERCHANGEABLE
O-RING
5930-01-005-8845INTERCHANGEABLE
SWITCH,ROTARY
1718
4720-01-035-6601INTERCHANGEABLE
HOSE,NONMETALLIC
AE246-8

Frequently Asked Questions

What is NSN 5310-00-261-6189?

NSN 5310-00-261-6189 is a Washer,lock, manufactured by Itw Shakeproof Automotive Products, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-261-6189?

NSN 5310-00-261-6189 has 1 cross-referenced part number: 1718 (Itw Shakeproof Automotive Products).

What NSN replaces 5310-00-261-6189?

There are 12 known substitutes for 5310-00-261-6189: 5930-00-065-7759, 6675-00-222-2542, 4820-00-421-0438 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1718?

Key specifications for 1718: Outside Diameter: 0.594 INCHES MINIMUM AND 0.607 INCHES MAXIMUM IN; Style Designator: FLAT INTERNAL TEETH; Hole Diameter: 0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN; Material Thickness: 0.030 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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