PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7231Standoff,threaded,spacing

Keystone Electronics Corp · NSN 5340-01-373-5071 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-373-5071 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-373-5071. Primary manufacturer part number: 7231.
Features
  • Standoff,threaded,spacing — FSC 5340
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD)
  • Material: STEEL OVERALL
  • Cross-Sectional Shape: HEXAGON
  • Thread Quantity Per Inch: 40 LEFT INTERNAL (INCLUDES THRU THREAD)
  • Length: 0.188 INCHES NOMINAL IN
  • Thread Class: 2A RIGHT INTERNAL A
  • Right Projection Length: 0.312 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-373-5071, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Keystone Electronics Corp. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-373-5071
Primary Part Number7231
Item NameStandoff,threaded,spacing
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerKeystone Electronics Corp
StatusACTIVE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD)
MaterialSTEEL OVERALL
Cross-Sectional ShapeHEXAGON
Thread Quantity Per Inch40 LEFT INTERNAL (INCLUDES THRU THREAD)
Length0.188 INCHES NOMINAL IN
Thread Class2A RIGHT INTERNAL A
Right Projection Length0.312 INCHES NOMINAL IN
Thread Length0.312 INCHES NOMINAL RIGHT INTERNAL IN
Surface TreatmentCHROMATE OVERALL
Thread Length0.100 INCHES MINIMUM LEFT INTERNAL (INCLUDES THRU THREAD) IN
Style DesignatorLEFT INTERNAL AND RIGHT EXTERNAL THREAD
Nominal Thread Size0.112 INCHES RIGHT INTERNAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) RIGHT INTERNAL
Thread DirectionRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
Nominal Thread Size0.112 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
Right Projection Diameter0.112 INCHES NOMINAL IN
Thread Quantity Per Inch40 RIGHT INTERNAL
Thread DirectionRIGHT-HAND RIGHT INTERNAL
Width Across Flats0.188 INCHES NOMINAL IN
Thread Class2B LEFT INTERNAL (INCLUDES THRU THREAD)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
Battery,storage
3120-00-338-785914U1483PCDB7231 INTERCHANGEABLE
Bearing,sleeve
Naval Ship Systems Command
2990-00-356-1084T-3374 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
6240-00-426-1958LTX7231 INTERCHANGEABLE
Lamp,incandescent
Lamptronix Co Ltd
5985-00-620-6441 INTERCHANGEABLE
Tester,load Bank
5950-00-754-6939 INTERCHANGEABLE
Core,electromagnetic Component
6240-00-955-9324 INTERCHANGEABLE
Lamp,incandescent
9160-00-980-4871556.044.018 INTERCHANGEABLE
Indicating Fluid,instrument
Alnor Instrument Company
5360-01-251-4677 INTERCHANGEABLE
Spring,slipper
6550-01-360-56907231 INTERCHANGEABLE
Hematoxylin Stain
Richard-Allan Scientific Llc
Cross-Reference Index
Part NumberManufacturer
7231 PRIMARY Keystone Electronics Corp (USA)
Related Parts
6140-01-317-1541SUCCESSOR
BATTERY,STORAGE
3120-00-338-7859INTERCHANGEABLE
BEARING,SLEEVE
14U1483PCDB7231
2990-00-356-1084INTERCHANGEABLE
MUFFLER,EXHAUST
T-3374
6240-00-426-1958INTERCHANGEABLE
LAMP,INCANDESCENT
LTX7231
5985-00-620-6441INTERCHANGEABLE
TESTER,LOAD BANK
5950-00-754-6939INTERCHANGEABLE
CORE,ELECTROMAGNETIC COMPONENT
6240-00-955-9324INTERCHANGEABLE
LAMP,INCANDESCENT
9160-00-980-4871INTERCHANGEABLE
INDICATING FLUID,INSTRUMENT
556.044.018
5360-01-251-4677INTERCHANGEABLE
SPRING,SLIPPER
6550-01-360-5690INTERCHANGEABLE
HEMATOXYLIN STAIN
7231
5905-01-413-2824INTERCHANGEABLE
RESISTOR NETWORK,FIXED,FILM
102-224-5
4210-01-440-8428INTERCHANGEABLE
FOAM LIQUID,FIRE EXTINGUISHING
79372

Frequently Asked Questions

What is NSN 5340-01-373-5071?

NSN 5340-01-373-5071 is a Standoff,threaded,spacing, manufactured by Keystone Electronics Corp, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-373-5071?

NSN 5340-01-373-5071 has 1 cross-referenced part number: 7231 (Keystone Electronics Corp).

What NSN replaces 5340-01-373-5071?

There are 12 known substitutes for 5340-01-373-5071: 6140-01-317-1541, 3120-00-338-7859, 2990-00-356-1084 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7231?

Key specifications for 7231: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD); Material: STEEL OVERALL; Cross-Sectional Shape: HEXAGON; Thread Quantity Per Inch: 40 LEFT INTERNAL (INCLUDES THRU THREAD). 20 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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