PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

431-2Nut,plain,castellated,hexagon

C. S. Osborne and Company Dba Cs Osborne & Co · NSN 5310-00-010-9879 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-010-9879 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-010-9879. Primary manufacturer part number: 431-2.
Features
  • Nut,plain,castellated,hexagon — FSC 5310
  • Nut Height: 1.000 INCHES NOMINAL IN
  • Nominal Thread Size: 1.000 INCHES IN
  • Thread Class: 2B
  • Material: STEEL OVERALL
  • Thread Quantity Per Inch: 14
  • Material Document and Classification: QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Nut Style: CASTELLATED, HEXAGON
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,castellated,hexagon, cataloged under National Stock Number 5310-00-010-9879, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is C. S. Osborne and Company Dba Cs Osborne & Co. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 12 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
NSN5310-00-010-9879
Primary Part Number431-2
Item NameNut,plain,castellated,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerC. S. Osborne and Company Dba Cs Osborne & Co
StatusACTIVE
Nut Height1.000 INCHES NOMINAL IN
Nominal Thread Size1.000 INCHES IN
Thread Class2B
MaterialSTEEL OVERALL
Thread Quantity Per Inch14
Material Document and ClassificationQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nut StyleCASTELLATED, HEXAGON
Bearing Surface TypeCHAMFERED OR WASHER FACED
Width Across Flats1.438 INCHES NOMINAL IN
Thread SeriesUNS
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5355-00-031-2379 INTERCHANGEABLE
Knob
5330-00-060-9837A17-17 INTERCHANGEABLE
Packing,preformed
Ortman Fluid Power Quincy Compressor Div Sub of Coltec Industries Inc
5905-00-068-69442075419PC178 INTERCHANGEABLE
Resistor,fixed,wire Wound
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5905-00-069-12292075419PC174 INTERCHANGEABLE
Resistor,fixed,wire Wound
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
2815-00-074-19295100104 INTERCHANGEABLE
Clamp and Screw,rocker Arm Cover
Rolls-Royce Solutions America Inc
2910-00-110-3897 INTERCHANGEABLE
Plunger,primer
3020-00-118-365233016 INTERCHANGEABLE
Gear,bevel
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5310-00-176-8089 INTERCHANGEABLE
Nut,plain,castellated,hexagon
5935-00-224-5980SCC24404-5 INTERCHANGEABLE
Jack,tip
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-243-5537A1717REVM INTERCHANGEABLE
Transformer,audio Frequency
Raytheon Company Dba Raytheon Co
Cross-Reference Index
Part NumberManufacturer
A1717 Lufkin Industries, Inc. Dba Power Transmission (USA)
109879 CAGE 00000
0911057 Allis-Chalmers Corp (USA)
T106N Timpte Inc (USA)
N13311G Diamond Reo Truck Co (USA)
1060 Premier Central Truck Body (USA)
BBFX2E CAGE 00000
431-2 PRIMARY C. S. Osborne and Company Dba Cs Osborne & Co (USA)
205A General Motors Corp Chevrolet-Pontiac-Canada Group (USA)
330-16 PRIMARY Heil Environmental Industries (USA)
FFB571TYPEA Federal Specifications Promulgated by General Services Administration Washington DC (USA)
205A General Motors Corp (USA)
205A General Motors Llc Dba General Motors Llc (USA)
DX586W Diamond Reo Truck Co (USA)
911057 Allis-Chalmers Corp (USA)
DX586W Kysor/westran Corp Austin Trailer Div (USA)
0911057-8 Allis-Chalmers Corp (USA)
Related Parts
5355-00-031-2379INTERCHANGEABLE
KNOB
5330-00-060-9837INTERCHANGEABLE
PACKING,PREFORMED
A17-17
5905-00-068-6944INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
2075419PC178
5905-00-069-1229INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
2075419PC174
2815-00-074-1929INTERCHANGEABLE
CLAMP AND SCREW,ROCKER ARM COVER
5100104
2910-00-110-3897INTERCHANGEABLE
PLUNGER,PRIMER
3020-00-118-3652INTERCHANGEABLE
GEAR,BEVEL
33016
5310-00-176-8089INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
5935-00-224-5980INTERCHANGEABLE
JACK,TIP
SCC24404-5
5950-00-243-5537INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
A1717REVM
3120-00-288-0990INTERCHANGEABLE
BEARING,SLEEVE
G5-265
2530-00-355-4417INTERCHANGEABLE
BOOT,VEHICULAR COMPONENTS
109879

Frequently Asked Questions

What is NSN 5310-00-010-9879?

NSN 5310-00-010-9879 is a Nut,plain,castellated,hexagon, manufactured by C. S. Osborne and Company Dba Cs Osborne & Co, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-010-9879?

NSN 5310-00-010-9879 has 17 cross-referenced part numbers: A1717 (Lufkin Industries, Inc. Dba Power Transmission), 109879, 0911057 (Allis-Chalmers Corp), T106N (Timpte Inc), N13311G (Diamond Reo Truck Co) and 12 more.

What NSN replaces 5310-00-010-9879?

There are 12 known substitutes for 5310-00-010-9879: 5355-00-031-2379, 5330-00-060-9837, 5905-00-068-6944 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 431-2?

Key specifications for 431-2: Nut Height: 1.000 INCHES NOMINAL IN; Nominal Thread Size: 1.000 INCHES IN; Thread Class: 2B; Material: STEEL OVERALL. 11 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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