PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

383420Bolt,machine

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5306-00-828-4265 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-828-4265 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-828-4265. Primary manufacturer part number: 383420.
Features
  • Bolt,machine — FSC 5306
  • Hole Quantity: 4
  • Thread Quantity Per Inch: 20
  • Extended Washer Diameter: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
  • Thread Length: 0.515 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN
  • Width Between Flats: 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
  • Hole Diameter: 0.062 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.250 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 8740 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-828-4265, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-828-4265
Primary Part Number383420
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Hole Quantity4
Thread Quantity Per Inch20
Extended Washer Diameter0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
Thread Length0.515 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN
Width Between Flats0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
Hole Diameter0.062 INCHES NOMINAL IN
Nominal Thread Diameter0.250 INCHES IN
Hole TypeDRILLED
Head StyleDOUBLE HEXAGON W/HOLE
MaterialSTEEL COMP 8740 OVERALL
Extended Washer Thickness0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
Material Document and ClassificationAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread DirectionRIGHT-HAND
Criticality Code JustificationFEAT
Hole Configuration StyleDOUBLE HEXAGON LONGITUDINAL HOLE
Fastener Length0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OVERALL
Surface Finish32.0 MICROINCHES THREADS
Grip Length0.100 INCHES NOMINAL IN
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Surface Treatment Document and ClassificationAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Thread Class3A A
Head Height0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
Features ProvidedFINISHED HEAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2920-00-457-0230018198 INTERCHANGEABLE
Bracket
Mack Trucks Inc Parts Opn
Cross-Reference Index
Part NumberManufacturer
383420 Textron Fastening Systems Dba Decorah Operations Tfs (USA)
383420 Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA)
383420 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
383420 Sps Technologies, Llc Dba PB Fasteners (USA)
383420 Howmet Global Fastening Systems Inc Div Torrance Operations (USA)
Related Parts
2920-00-457-0230INTERCHANGEABLE
BRACKET
018198

Frequently Asked Questions

What is NSN 5306-00-828-4265?

NSN 5306-00-828-4265 is a Bolt,machine, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-828-4265?

NSN 5306-00-828-4265 has 5 cross-referenced part numbers: 383420 (Textron Fastening Systems Dba Decorah Operations Tfs), 383420 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 383420 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 383420 (Sps Technologies, Llc Dba PB Fasteners), 383420 (Howmet Global Fastening Systems Inc Div Torrance Operations).

What NSN replaces 5306-00-828-4265?

There is 1 known substitute for 5306-00-828-4265: 2920-00-457-0230. Verify interchangeability with system specifications before substitution.

What are the specifications of 383420?

Key specifications for 383420: Hole Quantity: 4; Thread Quantity Per Inch: 20; Extended Washer Diameter: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN; Thread Length: 0.515 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN. 26 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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