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5305-01-058-0749

Find complete technical information, availability, and procurement data for: 5305-01-058-0749

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5305-01-058-0749
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-058-0749
Item Name Code
18257
Assigment Date
03/22/1978 (48 years ago)

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

right-hand thread direction, 0.969 inches minimum and 1.000 inches maximum thread length, hexagon head style, 2a thread class, 1.000 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
0.969 inches minimum and 1.000 inches maximum
Fastener Length
1.000 inches maximum
Head Style
hexagon
Head Height
0.302 inches minimum and 0.323 inches maximum
Width Between Flats
0.736 inches minimum and 0.750 inches maximum
Nominal Thread Diameter
0.500 inches
Thread Quantity Per Inch
13
Minimum Tensile Strength
120000 pounds per square inch
Hardness Rating
25.0 rockwell c minimum and 34.0 rockwell c maximum overall
Surface Finish
63.0 microinches threads
Material
steel overall
Material Document And Classification
sae grade5 assn std single material response overall
Surface Treatment
zinc overall
Surface Treatment Document And Classification
qq-z-325 ty2 cl2 fed spec single treatment response overall
Thread Series Designator
unc
Nondefinitive Spec/Std Data
2 type and 10p style and 5 grade

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
11648733 Hexagon Head Cap Screw
5305010580749 Hexagon Head Cap Screw
530501580749 Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-058-0749?
The FSCG of the NSN 5305-01-058-0749 is 5305
Does the NSN 5305-01-058-0749 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-058-0749 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 5305-01-058-0749 contain precious materials?
Precious metal content is unknown
Does NSN 5305-01-058-0749 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 5305-01-058-0749 was assigned to the Federal Catalog?
It was assigned 48 years ago, on Wed, Mar 22, 1978

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