PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

73786Nut,self-Locking,barrel

Sps Technologies, Llc Dba PB Fasteners · NSN 5310-00-171-4599 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-171-4599 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-171-4599. Primary manufacturer part number: 73786.
Features
  • Nut,self-Locking,barrel — FSC 5310
  • Locking Feature: PREVAILING TORQUE ALL METAL DESIGN
  • Lubrication: DRY FILM LUBRICANT
  • Material Document and Classification: AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Thread Class: 3B
  • Counterbore Diameter: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM NUT IN
  • Nut Counterbore Depth: 0.105 INCHES MINIMUM AND 0.135 INCHES MAXIMUM NUT IN
  • Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF)
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Iron Alloy 660 Overall construction
General Description

The Nut,self-Locking,barrel, cataloged under National Stock Number 5310-00-171-4599, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 12 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-171-4599
Primary Part Number73786
Item NameNut,self-Locking,barrel
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSps Technologies, Llc Dba PB Fasteners
StatusACTIVE
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
LubricationDRY FILM LUBRICANT
Material Document and ClassificationAMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Class3B
Counterbore Diameter0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM NUT IN
Nut Counterbore Depth0.105 INCHES MINIMUM AND 0.135 INCHES MAXIMUM NUT IN
Thread SeriesUNIFIED NATIONAL JOINT FINE (UNJF)
Hardness Rating26.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
Nominal Thread Size0.190 INCHES IN
Thread Quantity Per Inch32
MaterialIRON ALLOY 660 OVERALL
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-141-24291653121C1 INTERCHANGEABLE
Gasket
Navistar Intl Corp Truck Br Ohio Plant
3020-01-342-874773786 INTERCHANGEABLE
Gear,spur
Triumph Engine Control Systems Llc
Cross-Reference Index
Part NumberManufacturer
3021T33P02 General Electric Company Dba Ge Aerospace (USA)
73786 PRIMARY Sps Technologies, Llc Dba PB Fasteners (USA)
73786 Sps Technologies Inc (USA)
Related Parts
5330-00-141-2429INTERCHANGEABLE
GASKET
1653121C1
3020-01-342-8747INTERCHANGEABLE
GEAR,SPUR
73786

Frequently Asked Questions

What is NSN 5310-00-171-4599?

NSN 5310-00-171-4599 is a Nut,self-Locking,barrel, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-171-4599?

NSN 5310-00-171-4599 has 3 cross-referenced part numbers: 3021T33P02 (General Electric Company Dba Ge Aerospace), 73786 (Sps Technologies, Llc Dba PB Fasteners), 73786 (Sps Technologies Inc).

What NSN replaces 5310-00-171-4599?

There are 2 known substitutes for 5310-00-171-4599: 5330-00-141-2429, 3020-01-342-8747. Verify interchangeability with system specifications before substitution.

What are the specifications of 73786?

Key specifications for 73786: Locking Feature: PREVAILING TORQUE ALL METAL DESIGN; Lubrication: DRY FILM LUBRICANT; Material Document and Classification: AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Thread Class: 3B. 12 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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