PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

81349Nut,self-Locking,hexagon

Naval Sea Systems Command · NSN 5310-01-513-8198 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-513-8198 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-513-8198. Primary manufacturer part number: 81349.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Material: STEEL COMP 302 OVERALL EXCEPT INSERT
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Nut Height: 0.219 INCHES NOMINAL IN
  • Nominal Thread Size: 0.250 INCHES IN
  • Width Across Flats: 0.438 INCHES NOMINAL IN
  • Nut Style: HEXAGON
  • Thread Quantity Per Inch: 20
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 Overall Except Insert construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-513-8198, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-513-8198
Primary Part Number81349
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
MaterialSTEEL COMP 302 OVERALL EXCEPT INSERT
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Nut Height0.219 INCHES NOMINAL IN
Nominal Thread Size0.250 INCHES IN
Width Across Flats0.438 INCHES NOMINAL IN
Nut StyleHEXAGON
Thread Quantity Per Inch20
Thread Class2B
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5905-00-005-2902 INTERCHANGEABLE
Resistor,fixed,film
3610-00-069-4106 INTERCHANGEABLE
Cam Switch,right
5905-00-106-9345 INTERCHANGEABLE
Resistor,fixed,composition
5910-00-114-0755 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
5905-00-138-7399 INTERCHANGEABLE
Resistor,fixed,film
5905-00-346-8296 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
5961-00-849-4186 INTERCHANGEABLE
Semiconductor Device,diode
5310-01-273-9873 INTERCHANGEABLE
Washer,saddle
5910-01-297-3116 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
5910-01-298-1977 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Cross-Reference Index
Part NumberManufacturer
593-7556811 PC 112 Naval Sea Systems Command (USA)
81349 PRIMARY Naval Sea Systems Command (USA)
Related Parts
5905-00-005-2902INTERCHANGEABLE
RESISTOR,FIXED,FILM
3610-00-069-4106INTERCHANGEABLE
CAM SWITCH,RIGHT
5905-00-106-9345INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5910-00-114-0755INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
5905-00-138-7399INTERCHANGEABLE
RESISTOR,FIXED,FILM
5905-00-346-8296INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
5961-00-849-4186INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5310-01-273-9873INTERCHANGEABLE
WASHER,SADDLE
5910-01-297-3116INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
5910-01-298-1977INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
5120-01-601-5174INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
49966

Frequently Asked Questions

What is NSN 5310-01-513-8198?

NSN 5310-01-513-8198 is a Nut,self-Locking,hexagon, manufactured by Naval Sea Systems Command, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-513-8198?

NSN 5310-01-513-8198 has 2 cross-referenced part numbers: 593-7556811 PC 112 (Naval Sea Systems Command), 81349 (Naval Sea Systems Command).

What NSN replaces 5310-01-513-8198?

There are 11 known substitutes for 5310-01-513-8198: 5905-00-005-2902, 3610-00-069-4106, 5905-00-106-9345 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 81349?

Key specifications for 81349: Material: STEEL COMP 302 OVERALL EXCEPT INSERT; Thread Series: UNIFIED NATIONAL COARSE (UNC); Nut Height: 0.219 INCHES NOMINAL IN; Nominal Thread Size: 0.250 INCHES IN. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com