PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-N-25027Nut,self-Locking,hexagon

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-00-207-9071 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-207-9071 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-207-9071. Primary manufacturer part number: MIL-N-25027.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Width Across Flats: 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
  • Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Nominal Thread Size: 0.250 INCHES IN
  • Material: STEEL OVERALL
  • Nut Style: HEXAGON
  • Nut Height: 0.312 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
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 5310-00-207-9071, 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 5 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: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-207-9071
Primary Part NumberMIL-N-25027
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
StatusCANCELLED
Width Across Flats0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
Temp Rating250.0 FAHRENHEIT NOMINAL DEGF
Bearing Surface TypeCHAMFERED OR WASHER FACED
Nominal Thread Size0.250 INCHES IN
MaterialSTEEL OVERALL
Nut StyleHEXAGON
Nut Height0.312 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OVERALL
Thread DirectionRIGHT-HAND
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Thread Class3B
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Thread Quantity Per Inch20
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5310-00-208-9255MS21044C3 INTERCHANGEABLE
Nut,self-Locking,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
MIL-N-25027 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
7600027 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
NASM21044 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AN365-420C Aeronautical Standards Group Dept of Navy and Air Force (USA)
MS20365-420C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5310-00-208-9255INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
MS21044C3

Frequently Asked Questions

What is NSN 5310-00-207-9071?

NSN 5310-00-207-9071 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: cancelled.

What are the part numbers for NSN 5310-00-207-9071?

NSN 5310-00-207-9071 has 5 cross-referenced part numbers: MIL-N-25027 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 7600027 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), NASM21044 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AN365-420C (Aeronautical Standards Group Dept of Navy and Air Force), MS20365-420C (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-00-207-9071?

There is 1 known substitute for 5310-00-207-9071: 5310-00-208-9255. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-N-25027?

Key specifications for MIL-N-25027: Width Across Flats: 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN; Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF; Bearing Surface Type: CHAMFERED OR WASHER FACED; Nominal Thread Size: 0.250 INCHES IN. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-207-9071 still in active supply?

NSN 5310-00-207-9071 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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