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5306-00-281-7728

Find complete technical information, availability, and procurement data for: 5306-00-281-7728

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5306-00-281-7728
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-00-281-7728
Item Name Code
27851
Assigment Date
08/22/1973 (52 years ago)

A tubular item, so formed as to provide a spring action against the inside wall of a hole when driven into abutting pieces to position and hold them in place.

0.402 inches minimum and 0.438 inches maximum thread length, 4.293 inches minimum and 4.313 inches maximum fastener length, 3a thread class, dished hexagon head style, right-hand thread direction

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
3a
Thread Direction
right-hand
Thread Length
0.402 inches minimum and 0.438 inches maximum
Fastener Length
4.293 inches minimum and 4.313 inches maximum
Head Style
dished hexagon
Head Height
0.126 inches minimum and 0.141 inches maximum
Width Between Flats
0.430 inches minimum and 0.439 inches maximum
Grip Diameter
0.2483 inches minimum and 0.2492 inches maximum
Shank Unthreaded Hole Diameter
0.076 inches minimum and 0.086 inches maximum first hole
Nominal Thread Diameter
0.250 inches
Grip Length
3.875 inches minimum and 3.891 inches maximum
Thread Quantity Per Inch
28
Hardness Rating
36.0 rockwell c minimum and 41.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center
4.193 inches minimum and 4.223 inches maximum first hole
Surface Finish
63.0 microinches bearing surface of head
Surface Finish
63.0 microinches grip
Special Features
retaining element in shank
Material
steel comp e4340 or steel comp 304l or steel comp 4140 or steel comp 8740 or steel comp 8735 overall
Surface Treatment
cadmium and chromate overall
Surface Treatment Document And Classification
qq-p-416,type 2 class 2 assn std single treatment response overall
Thread Series Designator
unjf

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
106467-4-62 Close Tolerance Bolt
AS194-4-62 Close Tolerance Bolt
CA4510-4-62 Close Tolerance Bolt
MS27576-4-62 Close Tolerance Bolt

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5306-00-281-7728?
The FSCG of the NSN 5306-00-281-7728 is 5306
Does the NSN 5306-00-281-7728 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-00-281-7728 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5306-00-281-7728 contain precious materials?
Precious metal content is unknown
Does NSN 5306-00-281-7728 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5306-00-281-7728 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Wed, Aug 22, 1973

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