PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-45913Nut,self-Locking,hexagon

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-01-531-7280 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-531-7280 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-531-7280. Primary manufacturer part number: MIL-DTL-45913.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Nut Height: 0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
  • Width Across Flats: 0.428 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
  • Thread Class: 2B
  • Nominal Thread Size: 0.250 INCHES IN
  • Material: STEEL OVERALL
  • Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-531-7280, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, 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
NSN5310-01-531-7280
Primary Part NumberMIL-DTL-45913
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Nut Height0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
Width Across Flats0.428 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
Thread Class2B
Nominal Thread Size0.250 INCHES IN
MaterialSTEEL OVERALL
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Thread DirectionRIGHT-HAND
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Bearing Surface TypeFLAT
Nut StyleHEXAGON
Thread Quantity Per Inch20
Temp Rating250.0 FAHRENHEIT MAXIMUM DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-935-3750 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-032-2319 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-231-7459 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-253-0058 INTERCHANGEABLE
Nut,self-Locking,extended Washer
5310-01-374-0508 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-461-4610 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-514-0441 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-518-7597 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-522-0301 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-535-8822 INTERCHANGEABLE
Nut,self-Locking,hexagon
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-45913 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
11KP399 Oshkosh Defense Llc (USA)
M45913/1-4CG8Z Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
11KP399 Oshkosh Corp (USA)
Related Parts
5310-00-935-3750INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-032-2319INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-231-7459INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-253-0058INTERCHANGEABLE
NUT,SELF-LOCKING,EXTENDED WASHER
5310-01-374-0508INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-461-4610INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-514-0441INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-518-7597INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-522-0301INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-535-8822INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-548-1269INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-570-7523INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON

Frequently Asked Questions

What is NSN 5310-01-531-7280?

NSN 5310-01-531-7280 is a Nut,self-Locking,hexagon, 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 5310-01-531-7280?

NSN 5310-01-531-7280 has 4 cross-referenced part numbers: MIL-DTL-45913 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 11KP399 (Oshkosh Defense Llc), M45913/1-4CG8Z (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 11KP399 (Oshkosh Corp).

What NSN replaces 5310-01-531-7280?

There are 12 known substitutes for 5310-01-531-7280: 5310-00-935-3750, 5310-01-032-2319, 5310-01-231-7459 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-45913?

Key specifications for MIL-DTL-45913: Nut Height: 0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN; Width Across Flats: 0.428 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN; Thread Class: 2B; Nominal Thread Size: 0.250 INCHES IN. 14 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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