PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

X18231Nut,plain,hexagon

Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc · NSN 5310-00-208-9514 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-208-9514 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-208-9514. Primary manufacturer part number: X18231.
Features
  • Nut,plain,hexagon — FSC 5310
  • Nut Style: HEXAGON
  • Hardness Rating: 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
  • Thread Quantity Per Inch: 24
  • Bearing Surface Type: WASHER FACED
  • Nominal Thread Size: 0.375 INCHES IN
  • Thread Series: UNF
  • Width Across Flats: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1038 Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-208-9514, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-208-9514
Primary Part NumberX18231
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTeledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc
StatusCANCELLED
Nut StyleHEXAGON
Hardness Rating28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
Thread Quantity Per Inch24
Bearing Surface TypeWASHER FACED
Nominal Thread Size0.375 INCHES IN
Thread SeriesUNF
Width Across Flats0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
MaterialSTEEL COMP 1038 OVERALL
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Nut Height0.396 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Thread Class3B
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5133-00-227-9665 INTERCHANGEABLE
Drill,twist
6210-00-270-4180 INTERCHANGEABLE
Lens,light
5110-00-507-251239D2451-1 INTERCHANGEABLE
Punch,dimpling
Us Army Aviation and Missile Command
5136-00-580-7364310316 INTERCHANGEABLE
Tap,thread Cutting
Stanley Tools Div of Stanley Works
6105-00-917-6509112123 INTERCHANGEABLE
Motor,direct Current
Linde Material Handling North America Corporation
5945-00-946-4435EA8272R6 INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
5950-01-041-678712123 INTERCHANGEABLE
Reactor
L3 Technologies, Inc. Div Communication Systems-West
5310-01-085-356912123 INTERCHANGEABLE
Washer,recessed
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
4720-01-286-234512123 INTERCHANGEABLE
Hose Set,nonmetallic
Elbitamerica, Inc.
6550-01-397-655812123 INTERCHANGEABLE
Kit,plasmid
Qiagen, Llc
Cross-Reference Index
Part NumberManufacturer
X18231 Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc (USA)
12123 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
5133-00-227-9665INTERCHANGEABLE
DRILL,TWIST
6210-00-270-4180INTERCHANGEABLE
LENS,LIGHT
5110-00-507-2512INTERCHANGEABLE
PUNCH,DIMPLING
39D2451-1
5136-00-580-7364INTERCHANGEABLE
TAP,THREAD CUTTING
310316
6105-00-917-6509INTERCHANGEABLE
MOTOR,DIRECT CURRENT
112123
5945-00-946-4435INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
EA8272R6
5950-01-041-6787INTERCHANGEABLE
REACTOR
12123
5310-01-085-3569INTERCHANGEABLE
WASHER,RECESSED
12123
4720-01-286-2345INTERCHANGEABLE
HOSE SET,NONMETALLIC
12123
6550-01-397-6558INTERCHANGEABLE
KIT,PLASMID
12123
5310-01-413-0805INTERCHANGEABLE
WASHER,FLAT
12123
5998-01-476-8234INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
12123

Frequently Asked Questions

What is NSN 5310-00-208-9514?

NSN 5310-00-208-9514 is a Nut,plain,hexagon, manufactured by Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-208-9514?

NSN 5310-00-208-9514 has 2 cross-referenced part numbers: X18231 (Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc), 12123 (Zf Industrieantriebe Witten Gmbh).

What NSN replaces 5310-00-208-9514?

There are 12 known substitutes for 5310-00-208-9514: 5133-00-227-9665, 6210-00-270-4180, 5110-00-507-2512 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of X18231?

Key specifications for X18231: Nut Style: HEXAGON; Hardness Rating: 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM; Thread Quantity Per Inch: 24; Bearing Surface Type: WASHER FACED. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-208-9514 still in active supply?

NSN 5310-00-208-9514 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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