PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

101-2S4-2Bolt,machine

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5306-00-299-2392 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-299-2392 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-299-2392. Primary manufacturer part number: 101-2S4-2.
Features
  • Bolt,machine — FSC 5306
  • Head Height: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
  • Fastener Length: 0.500 INCHES NOMINAL IN
  • Thread Class: 2A A
  • Width Between Flats: 0.425 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
  • Thread Direction: RIGHT-HAND
  • Features Provided: FINISHED HEAD
  • Nominal Thread Diameter: 0.250 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-299-2392, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN5306-00-299-2392
Primary Part Number101-2S4-2
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Head Height0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
Fastener Length0.500 INCHES NOMINAL IN
Thread Class2A A
Width Between Flats0.425 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Features ProvidedFINISHED HEAD
Nominal Thread Diameter0.250 INCHES IN
Thread Length0.500 INCHES MAXIMUM IN
Nondefinitive Spec/std Data2 TYPE AND 2 GRADE
Head StyleHEXAGON
Hardness Rating100.0 ROCKWELL B MAXIMUM OVERALL
Surface TreatmentZINC OVERALL
Minimum Tensile Strength69000 POUNDS PER SQUARE INCH LBS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Surface Treatment Document and ClassificationQQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Material Document and ClassificationSAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Quantity Per Inch20
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
5305-00-174-9462 INTERCHANGEABLE
Screw,cap,hexagon Head
5306-00-272-5104 INTERCHANGEABLE
Bolt,machine
5306-00-275-9800280450PC252 INTERCHANGEABLE
Bolt,machine
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
101-2S4-2 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
MILB857TYPE2GRADE2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
146-34-1 Canadian Arsenals Ltd (CAN)
Related Parts
5306-00-174-9458SUCCESSOR
BOLT,MACHINE
5306-00-174-9463SUCCESSOR
BOLT,MACHINE
5306-00-174-9530SUCCESSOR
BOLT,MACHINE
5306-00-281-3741SUCCESSOR
BOLT,MACHINE
5306-00-299-2336SUCCESSOR
BOLT,MACHINE
5306-00-299-2339SUCCESSOR
BOLT,MACHINE
5306-00-299-2380SUCCESSOR
BOLT,MACHINE
5305-00-174-9462INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5306-00-272-5104INTERCHANGEABLE
BOLT,MACHINE
5306-00-275-9800INTERCHANGEABLE
BOLT,MACHINE
280450PC252
5306-00-299-2343INTERCHANGEABLE
BOLT,MACHINE
5305-00-299-2366INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD

Frequently Asked Questions

What is NSN 5306-00-299-2392?

NSN 5306-00-299-2392 is a Bolt,machine, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-299-2392?

NSN 5306-00-299-2392 has 3 cross-referenced part numbers: 101-2S4-2 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), MILB857TYPE2GRADE2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 146-34-1 (Canadian Arsenals Ltd).

What NSN replaces 5306-00-299-2392?

There are 12 known substitutes for 5306-00-299-2392: 5306-00-174-9458, 5306-00-174-9463, 5306-00-174-9530 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 101-2S4-2?

Key specifications for 101-2S4-2: Head Height: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN; Fastener Length: 0.500 INCHES NOMINAL IN; Thread Class: 2A A; Width Between Flats: 0.425 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN. 18 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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