PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS20364-428CNut,self-Locking,hexagon

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-00-275-2024 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-275-2024 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-275-2024. Primary manufacturer part number: MS20364-428C.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Thread Series: UNF
  • Nut Style: HEXAGON
  • Thread Class: 3B
  • Bearing Surface Type: FLAT
  • Nominal Thread Size: 0.250 INCHES IN
  • Surface Treatment: CADMIUM OR ZINC OVERALL
  • Material: STEEL 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 5310-00-275-2024, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments 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 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-275-2024
Primary Part NumberMS20364-428C
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Thread SeriesUNF
Nut StyleHEXAGON
Thread Class3B
Bearing Surface TypeFLAT
Nominal Thread Size0.250 INCHES IN
Surface TreatmentCADMIUM OR ZINC OVERALL
MaterialSTEEL OVERALL
Thread Quantity Per Inch28
Thread DirectionRIGHT-HAND
Temp Rating250.0 FAHRENHEIT NOMINAL DEGF
Width Across Flats0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Nut Height0.187 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-807-1468MS21042-4 INTERCHANGEABLE
Nut,self-Locking,extended Washer
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
MS20364-428C Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS20364-428C Leonardo Uk Ltd (GBR)
MS20364-428C Transdigm Inc Div Aero Fluid Products (USA)
Related Parts
5310-00-807-1468INTERCHANGEABLE
NUT,SELF-LOCKING,EXTENDED WASHER
MS21042-4

Frequently Asked Questions

What is NSN 5310-00-275-2024?

NSN 5310-00-275-2024 is a Nut,self-Locking,hexagon, manufactured by Military Standards Promulgated by Military Departments 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 5310-00-275-2024?

NSN 5310-00-275-2024 has 3 cross-referenced part numbers: MS20364-428C (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS20364-428C (Leonardo Uk Ltd), MS20364-428C (Transdigm Inc Div Aero Fluid Products).

What NSN replaces 5310-00-275-2024?

There is 1 known substitute for 5310-00-275-2024: 5310-00-807-1468. Verify interchangeability with system specifications before substitution.

What are the specifications of MS20364-428C?

Key specifications for MS20364-428C: Thread Series: UNF; Nut Style: HEXAGON; Thread Class: 3B; Bearing Surface Type: FLAT. 13 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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