PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet
MRO / Hardware and Abrasives / 5306-00-638-1478

AMS7478Bolt,machine

Sae International Dba Sae International · NSN 5306-00-638-1478 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-638-1478 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-638-1478. Primary manufacturer part number: AMS7478.
L 0.624 INCHES MINIMUM AND 0.684 INCHES MAXIMUM IN ⌀0.375 INCHES NOMINAL IN 32 BOLT/SCREW PROFILE
5306-00-638-1478 — No Item Name Available illustration
Features
  • Bolt,machine — FSC 5306
  • Material Document and Classification: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Thread Series Designator: UNF
  • Surface Finish: 63.0 MICROINCHES GRIP
  • Surface Finish: 63.0 MICROINCHES BEARING SURFACE OF HEAD
  • Hardness Rating: 248.0 BRINELL STANDARD MINIMUM AND 341.0 BRINELL STANDARD MAXIMUM OVERALL
  • Material: IRON ALLOY 660 OVERALL
  • Features Provided: FINISHED HEAD
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Iron Alloy 660 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-638-1478, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 22 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: Cancelled.

Technical Specifications
ParameterValue
NSN5306-00-638-1478
Primary Part NumberAMS7478
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusCANCELLED
Material Document and ClassificationAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorUNF
Surface Finish63.0 MICROINCHES GRIP
Surface Finish63.0 MICROINCHES BEARING SURFACE OF HEAD
Hardness Rating248.0 BRINELL STANDARD MINIMUM AND 341.0 BRINELL STANDARD MAXIMUM OVERALL
MaterialIRON ALLOY 660 OVERALL
Features ProvidedFINISHED HEAD
Extended Washer Diameter0.375 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Head StyleDOUBLE HEXAGON W/HOLE
Nominal Thread Diameter0.190 INCHES IN
Head Height0.260 INCHES NOMINAL IN
Nonstandard Thread Pitch Diameter+0.1644 TO 0.1667 INCHES IN
Thread Quantity Per Inch32
Thread Length0.624 INCHES MINIMUM AND 0.684 INCHES MAXIMUM IN
Fastener Length0.812 INCHES NOMINAL IN
Extended Washer Thickness0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
Grip Length0.128 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
Width Between Flats0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
Minimum Yield Strength85000 POUNDS PER SQUARE INCH LBS
Surface Finish32.0 MICROINCHES THREADS
Minimum Tensile Strength130000 POUNDS PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5306-00-806-0705 (331306)
HAZMATNo
⇄ Verified Substitutes 12
No Item Name Available
5306-00-806-0705331306 SUCCESSOR
Bolt,machine
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5305-00-020-3625NAS1100E06-6 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-628-6124NAS560HK3P15 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-725-9087NAS560HK3-5 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-802-4938NAS1100C06-7 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-802-4940NAS1100C3-10 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-802-6302NAS1100C3-8 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-804-0526NAS1100C3-18 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-804-1098NAS1100C04-7 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
AMS7478 Sae International Dba Sae International (USA)
AMS7478 Society of Automotive Engineers Inc (USA)
MS9033-11 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
SUCCESSOR 5306-00-806-0705 Bolt,machine · 331306
5306-00-649-9322SUCCESSOR
NO ITEM NAME AVAILABLE
5305-00-020-3625INTERCHANGEABLE
SCREW,MACHINE
NAS1100E06-6
5305-00-628-6124INTERCHANGEABLE
SCREW,MACHINE
NAS560HK3P15
5305-00-725-9087INTERCHANGEABLE
SCREW,MACHINE
NAS560HK3-5
5305-00-802-4938INTERCHANGEABLE
SCREW,MACHINE
NAS1100C06-7
5305-00-802-4940INTERCHANGEABLE
SCREW,MACHINE
NAS1100C3-10
5305-00-802-6302INTERCHANGEABLE
SCREW,MACHINE
NAS1100C3-8
5305-00-804-0526INTERCHANGEABLE
SCREW,MACHINE
NAS1100C3-18
5305-00-804-1098INTERCHANGEABLE
SCREW,MACHINE
NAS1100C04-7
5305-00-804-1099INTERCHANGEABLE
SCREW,MACHINE
NAS1100C04-8
5305-00-804-2302INTERCHANGEABLE
SCREW,MACHINE
NAS1100C04-12

Frequently Asked Questions

What is NSN 5306-00-638-1478?

NSN 5306-00-638-1478 is a Bolt,machine, manufactured by Sae International Dba Sae International, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-638-1478?

NSN 5306-00-638-1478 has 3 cross-referenced part numbers: AMS7478 (Sae International Dba Sae International), AMS7478 (Society of Automotive Engineers Inc), MS9033-11 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5306-00-638-1478?

There are 12 known substitutes for 5306-00-638-1478: 5306-00-649-9322, 5306-00-806-0705, 5305-00-020-3625 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AMS7478?

Key specifications for AMS7478: Material Document and Classification: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Thread Series Designator: UNF; Surface Finish: 63.0 MICROINCHES GRIP; Surface Finish: 63.0 MICROINCHES BEARING SURFACE OF HEAD. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-638-1478 still in active supply?

NSN 5306-00-638-1478 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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