PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

79NTM-82Nut,self-Locking,hexagon

Harvard Industries Inc · NSN 5310-01-127-2963 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-127-2963 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-127-2963. Primary manufacturer part number: 79NTM-82.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Thread Class: 3B
  • Thread Quantity Per Inch: 32
  • Bearing Surface Type: CHAMFERED
  • Criticality Code Justification: ZZZY
  • Nominal Thread Size: 0.164 INCHES IN
  • Test Data Document: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Material: PLASTIC POLYAMIDE NYLON LOCKING INSERT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyamide Nylon Locking Insert construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-127-2963, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Harvard Industries Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5310-01-127-2963
Primary Part Number79NTM-82
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHarvard Industries Inc
StatusACTIVE
Thread Class3B
Thread Quantity Per Inch32
Bearing Surface TypeCHAMFERED
Criticality Code JustificationZZZY
Nominal Thread Size0.164 INCHES IN
Test Data Document81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
MaterialPLASTIC POLYAMIDE NYLON LOCKING INSERT
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
Temp Rating250.0 FAHRENHEIT MAXIMUM DEGF
MaterialSTEEL COMP 303 NUT
Thread SeriesUNJC
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Special Test FeaturesSPECIAL QUALITY CONTROL TESTING
Nut Height0.157 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
Width Across Flats0.336 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Nut StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-939-0850MS21083C08 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
79NTM-82 Harvard Industries Inc (USA)
928E107 ITEM 35 Fluor Marine Propulsion, Llc (USA)
Related Parts
5310-00-939-0850INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
MS21083C08

Frequently Asked Questions

What is NSN 5310-01-127-2963?

NSN 5310-01-127-2963 is a Nut,self-Locking,hexagon, manufactured by Harvard Industries Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-127-2963?

NSN 5310-01-127-2963 has 2 cross-referenced part numbers: 79NTM-82 (Harvard Industries Inc), 928E107 ITEM 35 (Fluor Marine Propulsion, Llc).

What NSN replaces 5310-01-127-2963?

There is 1 known substitute for 5310-01-127-2963: 5310-00-939-0850. Verify interchangeability with system specifications before substitution.

What are the specifications of 79NTM-82?

Key specifications for 79NTM-82: Thread Class: 3B; Thread Quantity Per Inch: 32; Bearing Surface Type: CHAMFERED; Criticality Code Justification: ZZZY. 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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