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5305-01-135-7271

Find complete technical information, availability, and procurement data for: 5305-01-135-7271

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5305-01-135-7271
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-135-7271
Item Name Code
16282
Assigment Date
07/30/1982 (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.

right-hand thread direction, 3a thread class, 1.750 inches minimum thread length, flat chamfer head style, 1.940 inches minimum and 2.062 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
1.750 inches minimum
Fastener Length
1.940 inches minimum and 2.062 inches maximum
Head Style
flat chamfer
Head Diameter
0.921 inches minimum and 0.938 inches maximum
Head Height
0.616 inches minimum and 0.625 inches maximum
Internal Drive Style
hexagon
Nominal Thread Diameter
0.625 inches
Width Across Flats
0.500 inches nominal
Thread Quantity Per Inch
11
Minimum Tensile Strength
170000 pounds per square inch
Hardness Rating
38.0 rockwell c minimum and 45.0 rockwell c maximum overall
Minimum Yield Strength
150000 pounds per square inch
Material
steel overall
Surface Treatment
zinc and chromate overall
Surface Treatment Document And Classification
qq-z-325,ty2,cl3 assn std single treatment response overall
Thread Series Designator
unc

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
2593855-185 Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-135-7271?
The FSCG of the NSN 5305-01-135-7271 is 5305
Does the NSN 5305-01-135-7271 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-135-7271 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 5305-01-135-7271 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-135-7271 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 5305-01-135-7271 was assigned to the Federal Catalog?
It was assigned 43 years ago, on Fri, Jul 30, 1982

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