PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS20073-04-05Bolt,machine

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5306-00-620-8294 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-620-8294 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-620-8294. Primary manufacturer part number: MS20073-04-05.
Features
  • Bolt,machine — FSC 5306
  • Thread Direction: RIGHT-HAND
  • Features Provided: FINISHED HEAD
  • Thread Quantity Per Inch: 28
  • Hole Type: DRILLED
  • Width Between Flats: 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
  • Minimum Tensile Strength: 125000 POUNDS PER SQUARE INCH LBS
  • Head Style: HEXAGON
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4140 or Steel Comp 8740 or Steel Comp 8630 or Steel Comp 8735 or Steel Comp 4130 or Steel Comp 4037 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-620-8294, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 22 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5306-00-620-8294
Primary Part NumberMS20073-04-05
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Thread DirectionRIGHT-HAND
Features ProvidedFINISHED HEAD
Thread Quantity Per Inch28
Hole TypeDRILLED
Width Between Flats0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
Minimum Tensile Strength125000 POUNDS PER SQUARE INCH LBS
Head StyleHEXAGON
Nominal Thread Diameter0.250 INCHES IN
Hole Diameter0.070 INCHES NOMINAL IN
Head Height0.203 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
Thread Series DesignatorUNF
Thread Class3A A
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Hole Quantity6
Surface Treatment Document and ClassificationQQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Thread Length0.500 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
Fastener Length0.641 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN
Grip Length0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
Material Document and ClassificationMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE OR AMS 6300 ASSN STD 6TH MATERIAL RESPONSE OVERALL
Hole Configuration StyleHEXAGON LONGITUDINAL HOLE
MaterialSTEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5330-00-146-722523310 INTERCHANGEABLE
Gasket
Barksdale, Inc
5306-00-156-2658 INTERCHANGEABLE
Bolt,machine
5136-00-197-9307402514 INTERCHANGEABLE
Die,thread Cutting
Greenfield Industries Inc
3120-00-690-9635LS3859-4-34 INTERCHANGEABLE
Bushing,sleeve
Lockheed Martin Corp
5305-00-719-5007MS51959-83 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5130-01-329-6760 INTERCHANGEABLE
Brush,wire,rotary End
Cross-Reference Index
Part NumberManufacturer
AN74-5 Aeronautical Standards Group Dept of Navy and Air Force (USA)
MS20073-04-05 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
23310 Hamilton Sundstrand Corporation (USA)
MS20073-04-05 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
MS20073-04-05 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5330-00-146-7225INTERCHANGEABLE
GASKET
23310
5306-00-156-2658INTERCHANGEABLE
BOLT,MACHINE
5136-00-197-9307INTERCHANGEABLE
DIE,THREAD CUTTING
402514
3120-00-690-9635INTERCHANGEABLE
BUSHING,SLEEVE
LS3859-4-34
5305-00-719-5007INTERCHANGEABLE
SCREW,MACHINE
MS51959-83
5130-01-329-6760INTERCHANGEABLE
BRUSH,WIRE,ROTARY END

Frequently Asked Questions

What is NSN 5306-00-620-8294?

NSN 5306-00-620-8294 is a Bolt,machine, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-620-8294?

NSN 5306-00-620-8294 has 5 cross-referenced part numbers: AN74-5 (Aeronautical Standards Group Dept of Navy and Air Force), MS20073-04-05 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 23310 (Hamilton Sundstrand Corporation), MS20073-04-05 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), MS20073-04-05 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5306-00-620-8294?

There are 6 known substitutes for 5306-00-620-8294: 5330-00-146-7225, 5306-00-156-2658, 5136-00-197-9307 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS20073-04-05?

Key specifications for MS20073-04-05: Thread Direction: RIGHT-HAND; Features Provided: FINISHED HEAD; Thread Quantity Per Inch: 28; Hole Type: DRILLED. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-620-8294 still in active supply?

NSN 5306-00-620-8294 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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