PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

331306Bolt,machine

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5306-00-806-0705 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-806-0705 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-806-0705. Primary manufacturer part number: 331306.
Features
  • Bolt,machine — FSC 5306
  • Thread Quantity Per Inch: 32
  • Hole Quantity: 4
  • Head Style: DOUBLE HEXAGON W/HOLE
  • Hardness Rating: 24.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
  • Precious Material: SILVER
  • Surface Treatment Document and Classification: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
  • Thread Direction: RIGHT-HAND
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 5306-00-806-0705, 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 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5306-00-806-0705
Primary Part Number331306
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Thread Quantity Per Inch32
Hole Quantity4
Head StyleDOUBLE HEXAGON W/HOLE
Hardness Rating24.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
Precious MaterialSILVER
Surface Treatment Document and ClassificationAMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Thread DirectionRIGHT-HAND
Thread Length0.303 INCHES MINIMUM AND 0.365 INCHES MAXIMUM IN
Hole Diameter0.047 INCHES NOMINAL IN
Material Document and ClassificationAMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Extended Washer Diameter0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Width Between Flats0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
Features ProvidedFINISHED HEAD
Surface TreatmentSILVER OVERALL
Minimum Yield Strength85000 POUNDS PER SQUARE INCH LBS
Hole TypeDRILLED
Head Height0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
Extended Washer Thickness0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
Thread Series DesignatorUNF
Hole Configuration StyleDOUBLE HEXAGON LONGITUDINAL HOLE
Nonstandard Thread Pitch Diameter+0.1644 TO 0.1667 INCHES IN
MaterialIRON ALLOY 660 OVERALL
Nominal Thread Diameter0.190 INCHES IN
Fastener Length0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
Bolt,machine
5305-00-020-3625NAS1100E06-6 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5945-00-276-9267119898 INTERCHANGEABLE
Relay,electromagnetic
Cummins Inc.
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)
331306 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
331306 North Bridge Fasteners Div of North Bridge Ltd (BEL)
Related Parts
5306-00-638-1478SUCCESSOR
BOLT,MACHINE
5305-00-020-3625INTERCHANGEABLE
SCREW,MACHINE
NAS1100E06-6
5945-00-276-9267INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
119898
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 5306-00-806-0705?

NSN 5306-00-806-0705 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 5306-00-806-0705?

NSN 5306-00-806-0705 has 4 cross-referenced part numbers: AMS7478 (Sae International Dba Sae International), AMS7478 (Society of Automotive Engineers Inc), 331306 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 331306 (North Bridge Fasteners Div of North Bridge Ltd).

What NSN replaces 5306-00-806-0705?

There are 12 known substitutes for 5306-00-806-0705: 5306-00-638-1478, 5305-00-020-3625, 5945-00-276-9267 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 331306?

Key specifications for 331306: Thread Quantity Per Inch: 32; Hole Quantity: 4; Head Style: DOUBLE HEXAGON W/HOLE; Hardness Rating: 24.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL. 24 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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