PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS35338-143Washer,lock

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-01-180-7157 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-180-7157 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-180-7157. Primary manufacturer part number: MS35338-143.
Features
  • Washer,lock — FSC 5310
  • Hole Diameter: 0.500 INCHES NOMINAL IN
  • Criticality Code Justification: ZZZW
  • Departure From Cited Document: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Material: STEEL CORROSION RESISTING OVERALL
  • Material Thickness: 0.125 INCHES NOMINAL IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Outside Diameter: 0.871 INCHES NOMINAL IN
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 5310-01-180-7157, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-180-7157
Primary Part NumberMS35338-143
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Hole Diameter0.500 INCHES NOMINAL IN
Criticality Code JustificationZZZW
Departure From Cited DocumentMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
MaterialSTEEL CORROSION RESISTING OVERALL
Material Thickness0.125 INCHES NOMINAL IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Outside Diameter0.871 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5310-00-933-8778004-003005-024 INTERCHANGEABLE
Washer,lock
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5310-01-422-4476 INTERCHANGEABLE
Washer,lock
5310-01-555-00247662064-34 INTERCHANGEABLE
Washer,lock
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
MS35338-143 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5310-00-933-8778INTERCHANGEABLE
WASHER,LOCK
004-003005-024
5310-01-422-4476INTERCHANGEABLE
WASHER,LOCK
5310-01-555-0024INTERCHANGEABLE
WASHER,LOCK
7662064-34

Frequently Asked Questions

What is NSN 5310-01-180-7157?

NSN 5310-01-180-7157 is a Washer,lock, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-180-7157?

NSN 5310-01-180-7157 has 1 cross-referenced part number: MS35338-143 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-01-180-7157?

There are 3 known substitutes for 5310-01-180-7157: 5310-00-933-8778, 5310-01-422-4476, 5310-01-555-0024. Verify interchangeability with system specifications before substitution.

What are the specifications of MS35338-143?

Key specifications for MS35338-143: Hole Diameter: 0.500 INCHES NOMINAL IN; Criticality Code Justification: ZZZW; Departure From Cited Document: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS; Material: STEEL CORROSION RESISTING OVERALL. 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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