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5305-00-914-3785

Find complete technical information, availability, and procurement data for: 5305-00-914-3785

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5305-00-914-3785
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-914-3785
Item Name Code
18257
Assigment Date
01/01/1960 (66 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

0.970 inches minimum and 1.000 inches maximum fastener length, right-hand thread direction, hexagon head style, 0.750 inches minimum and 0.938 inches maximum thread length, 2a thread class

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
0.750 inches minimum and 0.938 inches maximum
Fastener Length
0.970 inches minimum and 1.000 inches maximum
Head Style
hexagon
Head Height
0.150 inches minimum and 0.163 inches maximum
Width Between Flats
0.428 inches minimum and 0.437 inches maximum
Hole Diameter
0.062 inches nominal
Nominal Thread Diameter
0.250 inches
Hole Quantity
1
Hole Type
drilled
Thread Quantity Per Inch
20
Minimum Tensile Strength
150000 pounds per square inch
Hardness Rating
32.0 rockwell c minimum and 38.0 rockwell c maximum overall
Minimum Yield Strength
120000 pounds per square inch
Hole Configuration Style
hexagon flats
Material
steel overall
Material Document And Classification
sae gr 8 assn std single material response overall
Surface Treatment
zinc and chromate overall
Surface Treatment Document And Classification
astm b633 ty 2 sc 3 assn std single treatment response overall
Thread Series Designator
unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5305-01-425-0119 No Name Available 10/01/2003

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
5305009143785 Hexagon Head Cap Screw
B1821BH025C100D Hexagon Head Cap Screw
MS18154-8 Hexagon Head Cap Screw
MS51095-308 Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-914-3785?
The FSCG of the NSN 5305-00-914-3785 is 5305
Does the NSN 5305-00-914-3785 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-914-3785 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 5305-00-914-3785 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-914-3785 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 5305-00-914-3785 was assigned to the Federal Catalog?
It was assigned 66 years ago, on Fri, Jan 1, 1960

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