PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42646Nut,self-Locking,hexagon

Terex Reedrill Dba Reedrill Texoma Div Terex Mining · NSN 5310-00-143-6145 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-143-6145 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-143-6145. Primary manufacturer part number: 42646.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Thread Class: 2B
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Nominal Thread Size: 1.250 INCHES IN
  • Bearing Surface Finish: 125.0 MICROINCHES
  • Material: PLASTIC POLYAMIDE NYLON LOCKING INSERT
  • Thread Quantity Per Inch: 12
  • Nut Style: HEXAGON
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 5310-00-143-6145, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Terex Reedrill Dba Reedrill Texoma Div Terex Mining. 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-143-6145
Primary Part Number42646
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTerex Reedrill Dba Reedrill Texoma Div Terex Mining
StatusACTIVE
Thread Class2B
Bearing Surface TypeCHAMFERED OR WASHER FACED
Nominal Thread Size1.250 INCHES IN
Bearing Surface Finish125.0 MICROINCHES
MaterialPLASTIC POLYAMIDE NYLON LOCKING INSERT
Thread Quantity Per Inch12
Nut StyleHEXAGON
Width Across Flats1.801 INCHES MINIMUM AND 1.815 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Nut Height1.360 INCHES MINIMUM AND 1.422 INCHES MAXIMUM IN
Surface TreatmentCADMIUM AND CHROMATE OVERALL EXCEPT INSERT
Temp Rating250.0 FAHRENHEIT NOMINAL DEGF
MaterialSTEEL NUT
Thread SeriesUNF
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Material Document and ClassificationSAE J995, GR 5 ASSN STD SINGLE MATERIAL RESPONSE NUT
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3130-00-408-904142646 INTERCHANGEABLE
Cap,pillow Block
Cummins Inc.
5962-01-203-974742646 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Div Rmd Strategic
5340-01-633-767042646-1 INTERCHANGEABLE
Door,access,utility
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
Cross-Reference Index
Part NumberManufacturer
42646 Terex Reedrill Dba Reedrill Texoma Div Terex Mining (USA)
MS51922-83 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-45913/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5310001436145 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
M45913/1-20FG5C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
3130-00-408-9041INTERCHANGEABLE
CAP,PILLOW BLOCK
42646
5962-01-203-9747INTERCHANGEABLE
MICROCIRCUIT,MEMORY
42646
5340-01-633-7670INTERCHANGEABLE
DOOR,ACCESS,UTILITY
42646-1

Frequently Asked Questions

What is NSN 5310-00-143-6145?

NSN 5310-00-143-6145 is a Nut,self-Locking,hexagon, manufactured by Terex Reedrill Dba Reedrill Texoma Div Terex Mining, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-143-6145?

NSN 5310-00-143-6145 has 5 cross-referenced part numbers: 42646 (Terex Reedrill Dba Reedrill Texoma Div Terex Mining), MS51922-83 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-45913/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 5310001436145 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), M45913/1-20FG5C (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-00-143-6145?

There are 3 known substitutes for 5310-00-143-6145: 3130-00-408-9041, 5962-01-203-9747, 5340-01-633-7670. Verify interchangeability with system specifications before substitution.

What are the specifications of 42646?

Key specifications for 42646: Thread Class: 2B; Bearing Surface Type: CHAMFERED OR WASHER FACED; Nominal Thread Size: 1.250 INCHES IN; Bearing Surface Finish: 125.0 MICROINCHES. 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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