PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M35338-145Washer,lock

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-01-389-7640 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-389-7640 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-389-7640. Primary manufacturer part number: M35338-145.
Features
  • Washer,lock — FSC 5310
  • Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Departure From Cited Document: AS MODIFIED BY MATERIAL
  • Hole Diameter: 0.636 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN
  • Surface Treatment: PASSIVATE OVERALL
  • Outside Diameter: 1.079 INCHES MAXIMUM IN
  • Material: STEEL COMP 316 OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 316 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-389-7640, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-389-7640
Primary Part NumberM35338-145
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Hardness Rating35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Departure From Cited DocumentAS MODIFIED BY MATERIAL
Hole Diameter0.636 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN
Surface TreatmentPASSIVATE OVERALL
Outside Diameter1.079 INCHES MAXIMUM IN
MaterialSTEEL COMP 316 OVERALL
Material Thickness0.156 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5310-00-937-0453004-003005-026 INTERCHANGEABLE
Washer,lock
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5310-01-369-6072NASM35338-145 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
M35338-145 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
SPP51-0012 Zf Industrieantriebe Witten Gmbh (DEU)
MS35338-145 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5310-00-937-0453INTERCHANGEABLE
WASHER,LOCK
004-003005-026
5310-01-369-6072INTERCHANGEABLE
WASHER,LOCK
NASM35338-145

Frequently Asked Questions

What is NSN 5310-01-389-7640?

NSN 5310-01-389-7640 is a Washer,lock, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-389-7640?

NSN 5310-01-389-7640 has 3 cross-referenced part numbers: M35338-145 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), SPP51-0012 (Zf Industrieantriebe Witten Gmbh), MS35338-145 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-01-389-7640?

There are 2 known substitutes for 5310-01-389-7640: 5310-00-937-0453, 5310-01-369-6072. Verify interchangeability with system specifications before substitution.

What are the specifications of M35338-145?

Key specifications for M35338-145: Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Departure From Cited Document: AS MODIFIED BY MATERIAL; Hole Diameter: 0.636 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN. 9 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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