PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS122058Washer,lock

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-00-818-3044 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-818-3044 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-818-3044. Primary manufacturer part number: MS122058.
Features
  • Washer,lock — FSC 5310
  • Material: STEEL OVERALL
  • Hole Diameter: 0.319 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN
  • Surface Treatment: CADMIUM OVERALL
  • Material Thickness: 0.056 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
  • Outside Diameter: 0.575 INCHES MAXIMUM IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • 1 verified cross-reference
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 5310-00-818-3044, 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 6 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-818-3044
Primary Part NumberMS122058
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
MaterialSTEEL OVERALL
Hole Diameter0.319 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OVERALL
Material Thickness0.056 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
Outside Diameter0.575 INCHES MAXIMUM IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-167-0669 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
MS122058 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5310-00-167-0669INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-00-818-3044?

NSN 5310-00-818-3044 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 5310-00-818-3044?

NSN 5310-00-818-3044 has 1 cross-referenced part number: MS122058 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-00-818-3044?

There is 1 known substitute for 5310-00-818-3044: 5310-00-167-0669. Verify interchangeability with system specifications before substitution.

What are the specifications of MS122058?

Key specifications for MS122058: Material: STEEL OVERALL; Hole Diameter: 0.319 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN; Surface Treatment: CADMIUM OVERALL; Material Thickness: 0.056 INCHES MINIMUM AND 0.066 INCHES MAXIMUM 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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