PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

261SJ13Nut,plain,single Ball Seat,hexag

Mack Trucks Inc Parts Opn · NSN 5310-00-264-0542 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-264-0542 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-264-0542. Primary manufacturer part number: 261SJ13.
Features
  • Nut,plain,single Ball Seat,hexag — FSC 5310
  • Nut Style: SINGLE BALL SEAT, HEXAGON
  • Thread Class: 2B
  • Thread Series: UNF
  • Nominal Thread Size: 0.625 INCHES IN
  • Thread Quantity Per Inch: 18
  • Material: STEEL OVERALL
  • Ball Seat Radius: 0.625 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,single Ball Seat,hexag, cataloged under National Stock Number 5310-00-264-0542, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mack Trucks Inc Parts Opn. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 24 commercial cross-references from 19 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-264-0542
Primary Part Number261SJ13
Item NameNut,plain,single Ball Seat,hexag
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMack Trucks Inc Parts Opn
StatusACTIVE
Nut StyleSINGLE BALL SEAT, HEXAGON
Thread Class2B
Thread SeriesUNF
Nominal Thread Size0.625 INCHES IN
Thread Quantity Per Inch18
MaterialSTEEL OVERALL
Ball Seat Radius0.625 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Width Across Flats1.250 INCHES NOMINAL IN
Nut Height0.812 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3110-00-142-4327AC539 INTERCHANGEABLE
Bearing,ball,airframe
Schatz Bearing Corporation Dba Schatz Bearing Corp
5120-00-293-1916C539 INTERCHANGEABLE
Auger,pipe and Sewer,hand
Coleman Allan J Co
5961-00-499-794415-03409-00 INTERCHANGEABLE
Transistor
Compaq Federal Llc
2530-00-529-420945Z225 INTERCHANGEABLE
Parts Kit,hydraulic Brake Wheel
Morris Material Handling, Inc.
5815-00-679-8548153440 INTERCHANGEABLE
Bar,selector,teletypewriter
Telemechanics Inc
5950-00-844-1785C539 INTERCHANGEABLE
Reactor
Inrcore, Llc Div Inrcore
3040-01-210-9622C539-13 INTERCHANGEABLE
Clamp,hub
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
3040-01-361-0569C46 INTERCHANGEABLE
Clamp,hub
Designatronics Incorporated Div Sterling Instruments Div
6515-01-473-2059E078-AC539 INTERCHANGEABLE
Scope Connector
Pentax of America, Inc. Dba Pentax Medical Div Pentax Medical
Cross-Reference Index
Part NumberManufacturer
35584052 Kaitlin Corp (USA)
DC539 General Motors Llc Dba General Motors Llc (USA)
261SJ13 PRIMARY Mack Trucks Inc Parts Opn (USA)
10S0926 PRIMARY Abm Equipment, Llc (USA)
DC539 General Motors Corp (USA)
196M4 Diamond Reo Truck Co (USA)
AC539 Orscheln Products Llc (USA)
4113P11 PRIMARY Taylor Machine Works Inc (USA)
442920 White Motor Corp (USA)
C539 Orscheln Products Llc (USA)
539 Trident Automotive Inc (USA)
539 Orscheln Products Llc (USA)
10S0926 Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
32441H PRIMARY Kenworth Truck Co a Div of Paccar Inc (USA)
C539 Trident Automotive Inc (USA)
AC539 Trident Automotive Inc (USA)
AC539 American Coleman Company, the Dba Metro Crown International (USA)
DC539 General Motors Llc Dba General Motors (USA)
32441H Long-Airdox Co (USA)
C539 PRIMARY Bay City Shovels, Inc (USA)
Related Parts
3110-00-142-4327INTERCHANGEABLE
BEARING,BALL,AIRFRAME
AC539
5120-00-293-1916INTERCHANGEABLE
AUGER,PIPE AND SEWER,HAND
C539
5961-00-499-7944INTERCHANGEABLE
TRANSISTOR
15-03409-00
2530-00-529-4209INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE WHEEL
45Z225
5815-00-679-8548INTERCHANGEABLE
BAR,SELECTOR,TELETYPEWRITER
153440
5950-00-844-1785INTERCHANGEABLE
REACTOR
C539
3040-01-210-9622INTERCHANGEABLE
CLAMP,HUB
C539-13
3040-01-361-0569INTERCHANGEABLE
CLAMP,HUB
C46
6515-01-473-2059INTERCHANGEABLE
SCOPE CONNECTOR
E078-AC539

Frequently Asked Questions

What is NSN 5310-00-264-0542?

NSN 5310-00-264-0542 is a Nut,plain,single Ball Seat,hexag, manufactured by Mack Trucks Inc Parts Opn, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-264-0542?

NSN 5310-00-264-0542 has 24 cross-referenced part numbers: 35584052 (Kaitlin Corp), DC539 (General Motors Llc Dba General Motors Llc), 261SJ13 (Mack Trucks Inc Parts Opn), 10S0926 (Abm Equipment, Llc), DC539 (General Motors Corp) and 19 more.

What NSN replaces 5310-00-264-0542?

There are 9 known substitutes for 5310-00-264-0542: 3110-00-142-4327, 5120-00-293-1916, 5961-00-499-7944 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 261SJ13?

Key specifications for 261SJ13: Nut Style: SINGLE BALL SEAT, HEXAGON; Thread Class: 2B; Thread Series: UNF; Nominal Thread Size: 0.625 INCHES IN. 10 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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