PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

309801Bolt,machine

Vibratech Inc · NSN 5306-00-142-4892 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-142-4892 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-142-4892. Primary manufacturer part number: 309801.
Features
  • Bolt,machine — FSC 5306
  • Head Height: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
  • Hole Type: DRILLED
  • Width Between Flats: 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 28
  • Material Document and Classification: MIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL
  • Features Provided: FINISHED HEAD
  • Thread Class: 3A A
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4037 or Steel Comp 4130 or Steel Comp 8630 or Steel Comp 8735 or Steel Comp 8740 or Steel Comp 4140 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-142-4892, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Vibratech Inc. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-142-4892
Primary Part Number309801
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerVibratech Inc
StatusACTIVE
Head Height0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
Hole TypeDRILLED
Width Between Flats0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
Thread Quantity Per Inch28
Material Document and ClassificationMIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL
Features ProvidedFINISHED HEAD
Thread Class3A A
Thread Length0.304 INCHES MINIMUM IN
Hole Diameter0.046 INCHES NOMINAL IN
Thread Series DesignatorUNF
MaterialSTEEL COMP 4037 OR STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 8740 OR STEEL COMP 4140 OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Head StyleHEXAGON
Surface TreatmentCADMIUM OVERALL
Hole Configuration StyleHEXAGON FLATS
Fastener Length0.375 INCHES NOMINAL IN
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Hole Quantity1
Nominal Thread Diameter0.250 INCHES IN
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5342-01-126-93833098-01 INTERCHANGEABLE
Retainer
Watts Automatic Control Valve Inc
5340-01-666-0675309801 INTERCHANGEABLE
Bracket,mounting
Brothers Body and Equipment, Llc
Cross-Reference Index
Part NumberManufacturer
309801 PRIMARY Vibratech Inc (USA)
Related Parts
5342-01-126-9383INTERCHANGEABLE
RETAINER
3098-01
5340-01-666-0675INTERCHANGEABLE
BRACKET,MOUNTING
309801

Frequently Asked Questions

What is NSN 5306-00-142-4892?

NSN 5306-00-142-4892 is a Bolt,machine, manufactured by Vibratech Inc, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-142-4892?

NSN 5306-00-142-4892 has 1 cross-referenced part number: 309801 (Vibratech Inc).

What NSN replaces 5306-00-142-4892?

There are 2 known substitutes for 5306-00-142-4892: 5342-01-126-9383, 5340-01-666-0675. Verify interchangeability with system specifications before substitution.

What are the specifications of 309801?

Key specifications for 309801: Head Height: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN; Hole Type: DRILLED; Width Between Flats: 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN; Thread Quantity Per Inch: 28. 20 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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