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 5310-01-548-1269 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-548-1269 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-548-1269. Primary manufacturer part number: MIL-DTL-45913.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Nominal Thread Size: 0.250 INCHES IN
  • Thread Class: 3B
  • Material: STEEL OVERALL
  • Surface Treatment: ZINC OVERALL
  • Specification/standard Data: 81349 - MIL-DTL-45913/4A GOVERNMENT SPECIFICATION A
  • Material Document and Classification: SAE J995, GRADE 8 NATIONAL STD/SPEC ALL MATERIAL RESPONSES OVERALL
  • Surface Treatment Document and Classification: ASTM B633, TYPE II, FE/ZN 8 ASSN STD ALL TREATMENT RESPONSES OVERALL
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 5310-01-548-1269, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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
NSN5310-01-548-1269
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
Nominal Thread Size0.250 INCHES IN
Thread Class3B
MaterialSTEEL OVERALL
Surface TreatmentZINC OVERALL
Specification/standard Data81349 - MIL-DTL-45913/4A GOVERNMENT SPECIFICATION A
Material Document and ClassificationSAE J995, GRADE 8 NATIONAL STD/SPEC ALL MATERIAL RESPONSES OVERALL
Surface Treatment Document and ClassificationASTM B633, TYPE II, FE/ZN 8 ASSN STD ALL TREATMENT RESPONSES OVERALL
Hardness Rating33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
Thread DirectionRIGHT-HAND
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Thread Quantity Per Inch20
Bearing Surface TypeCHAMFERED
Temp Rating250.0 FAHRENHEIT NOMINAL 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
5310-01-531-7280 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
M45913/4-4CG8Z Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
415670 Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump and Power Division (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
5310-01-531-7280INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-535-8822INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-570-7523INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON

Frequently Asked Questions

What is NSN 5310-01-548-1269?

NSN 5310-01-548-1269 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 5310-01-548-1269?

NSN 5310-01-548-1269 has 3 cross-referenced part numbers: MIL-DTL-45913 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M45913/4-4CG8Z (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 415670 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump and Power Division).

What NSN replaces 5310-01-548-1269?

There are 12 known substitutes for 5310-01-548-1269: 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: Nominal Thread Size: 0.250 INCHES IN; Thread Class: 3B; Material: STEEL OVERALL; Surface Treatment: ZINC OVERALL. 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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