PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N14Nut,plain,round

Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic · NSN 5310-00-185-6343 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-185-6343 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-185-6343. Primary manufacturer part number: N14.
Features
  • Nut,plain,round — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Nut Style: ROUND
  • Hardness Rating: 66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM
  • Thread Series: UNS
  • Thread Quantity Per Inch: 18
  • Nominal Thread Size: 2.751 INCHES IN
  • Material: STEEL COMP 1005 OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1005 Overall construction
General Description

The Nut,plain,round, cataloged under National Stock Number 5310-00-185-6343, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 28 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
NSN5310-00-185-6343
Primary Part NumberN14
Item NameNut,plain,round
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTwin Disc, Incorporated Dba Twin Disc Mid-Atlantic
StatusCANCELLED
Thread DirectionRIGHT-HAND
Nut StyleROUND
Hardness Rating66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM
Thread SeriesUNS
Thread Quantity Per Inch18
Nominal Thread Size2.751 INCHES IN
MaterialSTEEL COMP 1005 OVERALL
Nut Diameter3.625 INCHES NOMINAL IN
Thread Pitch Diameters+2.7149 TO 2.7200 INCHES IN
Drive Point Depth0.125 INCHES NOMINAL IN
Nut Thickness0.5625 INCHES NOMINAL IN
Drive Point Quantity4
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS
Drive Point Width0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6240-00-143-7433143-1 INTERCHANGEABLE
Lamp,incandescent
S and S X-Ray Products Inc
5360-00-168-2070118-15 INTERCHANGEABLE
Spring,helical,compression
Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
5340-00-222-8562140-38 INTERCHANGEABLE
Clamp,loop
Hewlett-Packard Company Dba HP
5330-00-285-946711815 INTERCHANGEABLE
Seal,plain Encased
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5330-00-298-59921236997 INTERCHANGEABLE
Gasket
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3020-00-341-814062-8-51 INTERCHANGEABLE
Gear,helical
Dana Corp Spicer Transmission Div
2910-00-422-657562851 INTERCHANGEABLE
Strap,fuel Tank Sup
Briggs and Stratton Corp
5999-00-423-5838N14 INTERCHANGEABLE
Heater,thermal Release
Rockwell Automation, Inc. Dba Rockwell Automation
5935-00-494-5854877051051 INTERCHANGEABLE
Connector,receptacle,electrical
Molex, Llc
4820-00-545-2251118515 INTERCHANGEABLE
Diaphragm,valve,flat
Circor Aerospace, Inc. Dba Circor Aerospace Inc
Cross-Reference Index
Part NumberManufacturer
62851 Ecolaire Inc Baldwin-Hamilton Co Div (USA)
HR20556 Ecolaire Inc Baldwin-Hamilton Co Div (USA)
N14 PRIMARY Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
DR2450PC9 Allis-Chalmers Corp (USA)
961A247-P14 Zf Industrieantriebe Witten Gmbh (DEU)
N14 PRIMARY Whittet-Higgins Company (USA)
17996PCM1039 Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
N14 Tuthill Corporation Dba Tuthill Vac & Blower Systems Div Tuthill Vacuum Systems (USA)
5P5813 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
0127717 PRIMARY Rolls-Royce Solutions America Inc (USA)
N14 PRIMARY The Timken Corporation (USA)
801490PC591 PRIMARY Rexnord Industries Llc (USA)
127717 General Motors Corp (USA)
N14 General Motors Corp Delco Moraine Ndh Div (USA)
N14 PRIMARY Timken Co Div the Timken Company (USA)
3150-2PC25 General Signal Corp (USA)
M1039 PRIMARY H20 Tank Inc U S Motors Div (USA)
DR2152PC4 Allis-Chalmers Corp (USA)
N-14 PRIMARY S K F Industries Inc (USA)
M1039 Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
Related Parts
6240-00-143-7433INTERCHANGEABLE
LAMP,INCANDESCENT
143-1
5360-00-168-2070INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
118-15
5340-00-222-8562INTERCHANGEABLE
CLAMP,LOOP
140-38
5330-00-285-9467INTERCHANGEABLE
SEAL,PLAIN ENCASED
11815
5330-00-298-5992INTERCHANGEABLE
GASKET
1236997
3020-00-341-8140INTERCHANGEABLE
GEAR,HELICAL
62-8-51
2910-00-422-6575INTERCHANGEABLE
STRAP,FUEL TANK SUP
62851
5999-00-423-5838INTERCHANGEABLE
HEATER,THERMAL RELEASE
N14
5935-00-494-5854INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
877051051
4820-00-545-2251INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
118515
2520-00-626-5194INTERCHANGEABLE
SPIDER,UNIVERSAL JOINT,VEHICULAR
AE22753
4820-00-793-5349INTERCHANGEABLE
VALVE,GLOBE

Frequently Asked Questions

What is NSN 5310-00-185-6343?

NSN 5310-00-185-6343 is a Nut,plain,round, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-185-6343?

NSN 5310-00-185-6343 has 50 cross-referenced part numbers: 62851 (Ecolaire Inc Baldwin-Hamilton Co Div), HR20556 (Ecolaire Inc Baldwin-Hamilton Co Div), N14 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), DR2450PC9 (Allis-Chalmers Corp), 961A247-P14 (Zf Industrieantriebe Witten Gmbh) and 45 more.

What NSN replaces 5310-00-185-6343?

There are 12 known substitutes for 5310-00-185-6343: 6240-00-143-7433, 5360-00-168-2070, 5340-00-222-8562 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N14?

Key specifications for N14: Thread Direction: RIGHT-HAND; Nut Style: ROUND; Hardness Rating: 66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM; Thread Series: UNS. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-185-6343 still in active supply?

NSN 5310-00-185-6343 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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