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5305-01-147-4036

Find complete technical information, availability, and procurement data for: 5305-01-147-4036

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5305-01-147-4036
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-147-4036
Item Name Code
18257
Assigment Date
02/16/1983 (43 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.

2a thread class, hexagon head style, right-hand thread direction, 0.938 inches minimum thread length, 2.156 inches minimum and 2.250 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
2a
Thread Direction
right-hand
Thread Length
0.938 inches minimum
Fastener Length
2.156 inches minimum and 2.250 inches maximum
Head Style
hexagon
Head Height
0.150 inches minimum and 0.163 inches maximum
Width Between Flats
0.428 inches minimum and 0.438 inches maximum
Shank Unthreaded Hole Diameter
0.074 inches minimum and 0.082 inches maximum first hole
Nominal Thread Diameter
0.250 inches
Thread Quantity Per Inch
20
Minimum Tensile Strength
70000 pounds per square inch
Hardness Rating
235.0 brinell standard maximum overall
Minimum Yield Strength
40000 pounds per square inch
Distance From Head Largest Bearing Surface To Shank Hole Center
2.037 inches minimum and 2.151 inches maximum first hole
Surface Finish
63.0 microinches threads
Material
steel comp 410 or steel comp 416 or steel comp 430 overall
Material Document And Classification
66 fed std all material responses overall
Surface Treatment
passivate overall
Surface Treatment Document And Classification
qq-p-35 fed spec single treatment response overall
Thread Series Designator
unc
Nondefinitive Spec/Std Data
2 type and 10p style

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
MS51109-13 Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-147-4036?
The FSCG of the NSN 5305-01-147-4036 is 5305
Does the NSN 5305-01-147-4036 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-147-4036 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 5305-01-147-4036 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-147-4036 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 5305-01-147-4036 was assigned to the Federal Catalog?
It was assigned 43 years ago, on Wed, Feb 16, 1983

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