0740779

View detailed technical data, stock status, and sourcing information for: 0740779

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0740779
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-021-3616
Item Name Code
18257
Assigment Date
01/01/1963 (63 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.

0.625 inches maximum thread length, 2a thread class, right-hand thread direction, 0.625 inches nominal fastener length, hexagon head style

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
0.625 inches maximum
Fastener Length
0.625 inches nominal
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
End Item Identification
mrap - m-atv w/cs13 pop and sne; multiple launch rocket system (mlrs); a4 bradley fighting vehicle; a3 bradley fighting vehicle
Nominal Thread Diameter
0.250 inches
Thread Quantity Per Inch
20
Minimum Tensile Strength
80 pounds per square inch
Material
steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316 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

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5305-00-194-2775 No Name Available 01/01/1984
5305-00-207-2618 No Name Available 08/03/1970
5305-00-297-8311 No Name Available 01/01/1963
5305-00-488-4376 No Name Available 10/01/1982
5305-00-490-4748 No Name Available 06/23/1971
5305-00-638-8808 No Name Available 01/01/1963
5305-00-922-8706 No Name Available 01/02/1969

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
0740779 Hexagon Head Cap Screw
10386408 Hexagon Head Cap Screw
1736319-9 Hexagon Head Cap Screw
23111-99-0403 Hexagon Head Cap Screw
2468836-5 Hexagon Head Cap Screw
306-12100 Hexagon Head Cap Screw
326-0935-00 Hexagon Head Cap Screw
326-0935-000 Hexagon Head Cap Screw
53050213616 Hexagon Head Cap Screw
706391-386B Hexagon Head Cap Screw
8204608 Hexagon Head Cap Screw
C10-28635 Hexagon Head Cap Screw
G302637-3 Hexagon Head Cap Screw
MS35307-305 Hexagon Head Cap Screw
MS35307-5 Hexagon Head Cap Screw
N93P21010 Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-021-3616?
The FSCG of the NSN 5305-00-021-3616 is 5305
Does the NSN 5305-00-021-3616 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-021-3616 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 5305-00-021-3616 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-021-3616 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 5305-00-021-3616 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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