PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-N-45938/11Nut,plain,clinch

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-01-266-1541 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-266-1541 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-266-1541. Primary manufacturer part number: MIL-N-45938/11.
Features
  • Nut,plain,clinch — FSC 5310
  • Thread Quantity Per Inch: 32
  • Nominal Thread Size: 0.164 INCHES IN
  • Pilot Diameter: 0.367 INCHES MAXIMUM IN
  • Nut Diameter: 0.440 INCHES MAXIMUM IN
  • Thread Class: 2B
  • Nut Height: 0.184 INCHES MAXIMUM IN
  • Temp Rating: 400.0 FAHRENHEIT MAXIMUM DEGF
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Nut,plain,clinch, cataloged under National Stock Number 5310-01-266-1541, 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 15 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
NSN5310-01-266-1541
Primary Part NumberMIL-N-45938/11
Item NameNut,plain,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 Quantity Per Inch32
Nominal Thread Size0.164 INCHES IN
Pilot Diameter0.367 INCHES MAXIMUM IN
Nut Diameter0.440 INCHES MAXIMUM IN
Thread Class2B
Nut Height0.184 INCHES MAXIMUM IN
Temp Rating400.0 FAHRENHEIT MAXIMUM DEGF
MaterialSTEEL COMP 303 OVERALL
Material Document and ClassificationASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
Nut StyleCLINCH
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread DirectionRIGHT-HAND
Pilot Length0.054 INCHES MAXIMUM IN
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
5310-01-067-3409M45938/1-16C INTERCHANGEABLE
Nut,plain,clinch
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-01-208-5255 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
Cross-Reference Index
Part NumberManufacturer
MIL-N-45938/11 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M45938/11-6C 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
5310-01-067-3409INTERCHANGEABLE
NUT,PLAIN,CLINCH
M45938/1-16C
5310-01-208-5255INTERCHANGEABLE
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
5310-01-278-3791INTERCHANGEABLE
NUT,SELF-LOCKING,CLINCH
5310-01-326-7595INTERCHANGEABLE
NUT,SELF-LOCKING,CLINCH

Frequently Asked Questions

What is NSN 5310-01-266-1541?

NSN 5310-01-266-1541 is a Nut,plain,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 5310-01-266-1541?

NSN 5310-01-266-1541 has 2 cross-referenced part numbers: MIL-N-45938/11 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M45938/11-6C (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-01-266-1541?

There are 12 known substitutes for 5310-01-266-1541: 5310-00-470-3341, 5310-00-936-0055, 5310-01-067-3409 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-N-45938/11?

Key specifications for MIL-N-45938/11: Thread Quantity Per Inch: 32; Nominal Thread Size: 0.164 INCHES IN; Pilot Diameter: 0.367 INCHES MAXIMUM IN; Nut Diameter: 0.440 INCHES MAXIMUM IN. 15 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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