PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M25027/1-22CNut,self-Locking,hexagon

Zf Industrieantriebe Witten Gmbh · NSN 5310-01-494-8396 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-494-8396 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-494-8396. Primary manufacturer part number: M25027/1-22C.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Material Document and Classification: ASTM,D4066,COMP A, TY 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT
  • Countersink Angle: 88.0 DEGREES MINIMUM SECOND END
  • Nominal Thread Size: 1.375 INCHES IN
  • Width Across Flats: 1.973 INCHES MINIMUM AND 2.011 INCHES MAXIMUM IN
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Material: PLASTIC LOCKING INSERT
  • Material: NICKEL ALLOY 400 OVERALL EXCEPT INSERT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Locking Insert construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-494-8396, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Zf Industrieantriebe Witten Gmbh. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-494-8396
Primary Part NumberM25027/1-22C
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerZf Industrieantriebe Witten Gmbh
StatusACTIVE
Material Document and ClassificationASTM,D4066,COMP A, TY 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT
Countersink Angle88.0 DEGREES MINIMUM SECOND END
Nominal Thread Size1.375 INCHES IN
Width Across Flats1.973 INCHES MINIMUM AND 2.011 INCHES MAXIMUM IN
Bearing Surface TypeCHAMFERED OR WASHER FACED
MaterialPLASTIC LOCKING INSERT
MaterialNICKEL ALLOY 400 OVERALL EXCEPT INSERT
Temp Rating250.0 FAHRENHEIT NOMINAL DEGF
Material Document and ClassificationQQ-N-281, CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL EXCEPT INSERT
Counterbore Diameter1.427 INCHES MINIMUM AND 1.467 INCHES MAXIMUM FIRST END IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Nut Height1.547 INCHES MINIMUM AND 1.609 INCHES MAXIMUM IN
Nut StyleHEXAGON
Thread Quantity Per Inch6
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Thread DirectionRIGHT-HAND
Thread Class3B
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-01-241-1914 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-385-5986M32258-UAC14 INTERCHANGEABLE
Nut,self-Locking,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-01-436-4983 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-450-5591 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-450-7796 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-623-7821 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-623-7954 INTERCHANGEABLE
Nut,self-Locking,hexagon
Cross-Reference Index
Part NumberManufacturer
M25027/1-22C Zf Industrieantriebe Witten Gmbh (DEU)
MS17828-22C/MOD Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-N-25027/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
167-6404628-124 Naval Sea Systems Command (USA)
211039156 Naval Sea Systems Command (USA)
Related Parts
5310-01-241-1914INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-385-5986INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
M32258-UAC14
5310-01-436-4983INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-450-5591INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-450-7796INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-623-7821INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-623-7954INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON

Frequently Asked Questions

What is NSN 5310-01-494-8396?

NSN 5310-01-494-8396 is a Nut,self-Locking,hexagon, manufactured by Zf Industrieantriebe Witten Gmbh, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-494-8396?

NSN 5310-01-494-8396 has 5 cross-referenced part numbers: M25027/1-22C (Zf Industrieantriebe Witten Gmbh), MS17828-22C/MOD (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-N-25027/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 167-6404628-124 (Naval Sea Systems Command), 211039156 (Naval Sea Systems Command).

What NSN replaces 5310-01-494-8396?

There are 7 known substitutes for 5310-01-494-8396: 5310-01-241-1914, 5310-01-385-5986, 5310-01-436-4983 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M25027/1-22C?

Key specifications for M25027/1-22C: Material Document and Classification: ASTM,D4066,COMP A, TY 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT; Countersink Angle: 88.0 DEGREES MINIMUM SECOND END; Nominal Thread Size: 1.375 INCHES IN; Width Across Flats: 1.973 INCHES MINIMUM AND 2.011 INCHES MAXIMUM IN. 17 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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