PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M45938/11-2CLNut,self-Locking,clinch

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-01-208-5255 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-208-5255 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-208-5255. Primary manufacturer part number: M45938/11-2CL.
Features
  • Nut,self-Locking,clinch — FSC 5310
  • Thread Class: 2B
  • Nut Height: 0.224 INCHES MAXIMUM IN
  • Pilot Diameter: 0.289 INCHES MAXIMUM IN
  • Nominal Thread Size: 0.112 INCHES IN
  • Surface Treatment: CADMIUM AND CHROMATE NUT
  • Surface Treatment: PASSIVATE SHELL
  • Material: STEEL COMP 303 NUT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 303 Nut construction
General Description

The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-01-208-5255, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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
NSN5310-01-208-5255
Primary Part NumberM45938/11-2CL
Item NameNut,self-Locking,clinch
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Thread Class2B
Nut Height0.224 INCHES MAXIMUM IN
Pilot Diameter0.289 INCHES MAXIMUM IN
Nominal Thread Size0.112 INCHES IN
Surface TreatmentCADMIUM AND CHROMATE NUT
Surface TreatmentPASSIVATE SHELL
MaterialSTEEL COMP 303 NUT
Thread DirectionRIGHT-HAND
Temp Rating400.0 FAHRENHEIT MAXIMUM DEGF
Thread Quantity Per Inch40
Features ProvidedFLOATING NUT
Nut StyleCLINCH
Material Document and ClassificationASTM A582 ASSN STD SINGLE MATERIAL RESPONSE SHELL
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Pilot Length0.054 INCHES MAXIMUM IN
Nut Diameter0.360 INCHES MAXIMUM IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Material Document and ClassificationASTM A582 ASSN STD SINGLE MATERIAL RESPONSE NUT
MaterialSTEEL COMP 303 SHELL
LubricationDRY FILM LUBRICANT
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE NUT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-470-3341AC-032-2 INTERCHANGEABLE
Nut,plain,clinch
Penn Engineering & Manufacturing Corp
5310-00-936-0055 INTERCHANGEABLE
Nut,self-Locking,clinch
5310-01-234-2571M45938/11-11C INTERCHANGEABLE
Nut,plain,clinch
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-01-235-7575 INTERCHANGEABLE
Nut,plain,clinch
5310-01-237-5216 INTERCHANGEABLE
Nut,self-Locking,clinch
5310-01-239-3538 INTERCHANGEABLE
Nut,self-Locking,clinch
5310-01-241-2683M45938/11-1C INTERCHANGEABLE
Nut,self-Locking,clinch
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-01-249-0474 INTERCHANGEABLE
Nut,self-Locking,clinch
5310-01-266-1541 INTERCHANGEABLE
Nut,plain,clinch
5310-01-278-3791 INTERCHANGEABLE
Nut,self-Locking,clinch
Cross-Reference Index
Part NumberManufacturer
M45938/11-2CL Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-N-45938/11 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5310-00-470-3341INTERCHANGEABLE
NUT,PLAIN,CLINCH
AC-032-2
5310-00-936-0055INTERCHANGEABLE
NUT,SELF-LOCKING,CLINCH
5310-01-234-2571INTERCHANGEABLE
NUT,PLAIN,CLINCH
M45938/11-11C
5310-01-235-7575INTERCHANGEABLE
NUT,PLAIN,CLINCH
5310-01-237-5216INTERCHANGEABLE
NUT,SELF-LOCKING,CLINCH
5310-01-239-3538INTERCHANGEABLE
NUT,SELF-LOCKING,CLINCH
5310-01-241-2683INTERCHANGEABLE
NUT,SELF-LOCKING,CLINCH
M45938/11-1C
5310-01-249-0474INTERCHANGEABLE
NUT,SELF-LOCKING,CLINCH
5310-01-266-1541INTERCHANGEABLE
NUT,PLAIN,CLINCH
5310-01-278-3791INTERCHANGEABLE
NUT,SELF-LOCKING,CLINCH
5310-01-326-7595INTERCHANGEABLE
NUT,SELF-LOCKING,CLINCH
5310-01-341-5622INTERCHANGEABLE
NUT,SELF-LOCKING,CLINCH
M45938/11-1L

Frequently Asked Questions

What is NSN 5310-01-208-5255?

NSN 5310-01-208-5255 is a Nut,self-Locking,clinch, manufactured by Military Specifications Promulgated by Military Departments/agencies 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 5310-01-208-5255?

NSN 5310-01-208-5255 has 2 cross-referenced part numbers: M45938/11-2CL (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-N-45938/11 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-01-208-5255?

There are 12 known substitutes for 5310-01-208-5255: 5310-00-470-3341, 5310-00-936-0055, 5310-01-234-2571 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M45938/11-2CL?

Key specifications for M45938/11-2CL: Thread Class: 2B; Nut Height: 0.224 INCHES MAXIMUM IN; Pilot Diameter: 0.289 INCHES MAXIMUM IN; Nominal Thread Size: 0.112 INCHES IN. 21 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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