PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8344Nut,self-Locking,cone Seat,hexag

Eaton Corp Transmission Div · NSN 5310-00-591-3172 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-591-3172 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-591-3172. Primary manufacturer part number: 8344.
Features
  • Nut,self-Locking,cone Seat,hexag — FSC 5310
  • Thread Direction: LEFT-HAND
  • Cone Seat Angle: 60.00 DEGREES NOMINAL
  • Thread Series: UN
  • Thread Quantity Per Inch: 16
  • Nominal Thread Size: 1.875 INCHES IN
  • Nut Height: 0.594 INCHES NOMINAL IN
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1212 Overall construction
General Description

The Nut,self-Locking,cone Seat,hexag, cataloged under National Stock Number 5310-00-591-3172, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Corp Transmission Div. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-591-3172
Primary Part Number8344
Item NameNut,self-Locking,cone Seat,hexag
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEaton Corp Transmission Div
StatusACTIVE
Thread DirectionLEFT-HAND
Cone Seat Angle60.00 DEGREES NOMINAL
Thread SeriesUN
Thread Quantity Per Inch16
Nominal Thread Size1.875 INCHES IN
Nut Height0.594 INCHES NOMINAL IN
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 1212 OVERALL
Locking FeatureFREE-RUNNING ALL METAL DESIGN
Nut StyleCONE SEAT, HEXAGON
Thread Class2B
Width Across Flats2.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6650-00-146-32395823 INTERCHANGEABLE
Borescope
Lenox Instrument Co., Inc.
5331-00-171-8266PRP902-53-718-40 INTERCHANGEABLE
O-Ring
Parker Hannifin Corporation Div O-Ring Division
5960-00-248-3078 INTERCHANGEABLE
Electron Tube
5305-00-484-69788344 INTERCHANGEABLE
Setscrew
Triumph Engine Control Systems Llc
5110-00-489-8135 INTERCHANGEABLE
Cutter,hawser,hand Operated
5950-00-519-79045823 INTERCHANGEABLE
Transformer,power
Instruments and Flight Research, Inc.
5310-00-575-56925823 INTERCHANGEABLE
Nut,plain,hexagon
Eaton Corp Transmission Div
4720-00-580-74708380781 INTERCHANGEABLE
Hose Assembly,nonmetallic
U S Army Tank Automotive Command Amsta-Im-Mm
5960-00-617-8975 INTERCHANGEABLE
Electron Tube
5340-00-673-6185416-10 INTERCHANGEABLE
Clamp,loop
Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins
Cross-Reference Index
Part NumberManufacturer
5999F Oshkosh Corp (USA)
5999FX Oshkosh Corp (USA)
41610 Terex Corp (USA)
5999FX Oshkosh Defense Llc (USA)
8344 Available Truck Co (USA)
8344 PRIMARY Eaton Corp Transmission Div (USA)
5823 Kaitlin Corp (USA)
5823 Trackmobile Llc (USA)
41610 General Motors Corp (USA)
41610 General Motors Llc Dba General Motors Llc (USA)
Related Parts
6650-00-146-3239INTERCHANGEABLE
BORESCOPE
5823
5331-00-171-8266INTERCHANGEABLE
O-RING
PRP902-53-718-40
5960-00-248-3078INTERCHANGEABLE
ELECTRON TUBE
5305-00-484-6978INTERCHANGEABLE
SETSCREW
8344
5110-00-489-8135INTERCHANGEABLE
CUTTER,HAWSER,HAND OPERATED
5950-00-519-7904INTERCHANGEABLE
TRANSFORMER,POWER
5823
5310-00-575-5692INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5823
4720-00-580-7470INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
8380781
5960-00-617-8975INTERCHANGEABLE
ELECTRON TUBE
5340-00-673-6185INTERCHANGEABLE
CLAMP,LOOP
416-10
1620-00-718-6784INTERCHANGEABLE
NUT,UPLOCK SPRING B
5823-5
5305-00-810-6621INTERCHANGEABLE
SCREW,EXTERNALLY RELIEVED BODY

Frequently Asked Questions

What is NSN 5310-00-591-3172?

NSN 5310-00-591-3172 is a Nut,self-Locking,cone Seat,hexag, manufactured by Eaton Corp Transmission Div, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-591-3172?

NSN 5310-00-591-3172 has 10 cross-referenced part numbers: 5999F (Oshkosh Corp), 5999FX (Oshkosh Corp), 41610 (Terex Corp), 5999FX (Oshkosh Defense Llc), 8344 (Available Truck Co) and 5 more.

What NSN replaces 5310-00-591-3172?

There are 12 known substitutes for 5310-00-591-3172: 6650-00-146-3239, 5331-00-171-8266, 5960-00-248-3078 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8344?

Key specifications for 8344: Thread Direction: LEFT-HAND; Cone Seat Angle: 60.00 DEGREES NOMINAL; Thread Series: UN; Thread Quantity Per Inch: 16. 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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