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CIPRD-MS27576-8-52R

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CIPRD-MS27576-8-52R
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-01-133-0178
Item Name Code
27851
Assigment Date
06/08/1982 (44 years ago)

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

3a thread class, dished hexagon head style, 0.417 inches minimum and 0.530 inches maximum thread length, right-hand thread direction, 3.896 inches minimum and 3.916 inches maximum fastener length

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
0.417 inches minimum and 0.530 inches maximum
Fastener Length
3.896 inches minimum and 3.916 inches maximum
Head Style
dished hexagon
Head Height
0.251 inches minimum and 0.266 inches maximum
Width Between Flats
0.741 inches minimum and 0.752 inches maximum
Grip Diameter
0.4982 inches minimum and 0.4991 inches maximum
Shank Unthreaded Hole Diameter
0.106 inches minimum and 0.116 inches maximum first hole
Nominal Thread Diameter
0.500 inches
Grip Length
3.250 inches minimum and 3.266 inches maximum
Thread Quantity Per Inch
20
Hardness Rating
36.0 rockwell c minimum and 41.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center
3.786 inches minimum and 3.796 inches maximum first hole
Surface Finish
63.0 microinches bearing surface of head
Surface Finish
63.0 microinches grip
Special Features
with retaining element on shank
Material
steel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 4130 or steel comp 6150 overall
Surface Treatment
cadmium and chromate overall
Surface Treatment Document And Classification
qq-p-416 ty2 cl2 fed spec 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
CIPRD-MS27576-8-52R Close Tolerance Bolt
MS27576-8-52 Close Tolerance Bolt
MS27576-8-52R Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-133-0178?
The FSCG of the NSN 5306-01-133-0178 is 5306
Does the NSN 5306-01-133-0178 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-01-133-0178 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 5306-01-133-0178 contain precious materials?
Item does not contain precious metal.
Does NSN 5306-01-133-0178 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 5306-01-133-0178 was assigned to the Federal Catalog?
It was assigned 44 years ago, on Tue, Jun 8, 1982

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