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5305-01-344-2057

Find complete technical information, availability, and procurement data for: 5305-01-344-2057

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5305-01-344-2057
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-344-2057
Item Name Code
06672
Assigment Date
08/24/1991 (34 years ago)

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. 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. The unthreaded portion is of specific 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. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

2a thread class, square head style, 2.698 inches minimum and 2.728 inches maximum fastener length, 2.544 inches nominal thread length, 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
2a
Thread Direction
right-hand
Thread Length
2.544 inches nominal
Fastener Length
2.698 inches minimum and 2.728 inches maximum
Head Style
square
Head Height
0.361 inches minimum and 0.389 inches maximum
Width Between Flats
0.484 inches minimum and 0.500 inches maximum
Point Style
half dog
Internal Drive Style
w/o internal drive
Nominal Thread Diameter
0.500 inches
Thread Quantity Per Inch
13
Hardness Rating
45.0 rockwell c minimum overall
Color
black overall
Material
steel overall
Surface Treatment
oxide overall
Surface Treatment Document And Classification
ams 2485 assn std single treatment response or mil-c-13294 mil spec single treatment response overall
Thread Series Designator
unc

Related Parts

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Part Number Name
05456-8C-44B Setscrew
90-8100-44541 Setscrew

FAQs

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

What is the FSCG of the NSN 5305-01-344-2057?
The FSCG of the NSN 5305-01-344-2057 is 5305
Does the NSN 5305-01-344-2057 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-344-2057 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 5305-01-344-2057 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-344-2057 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 5305-01-344-2057 was assigned to the Federal Catalog?
It was assigned 34 years ago, on Sat, Aug 24, 1991

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