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B1821BH025C075N

B1821BH025C075N

Hexagon Head Cap Screw

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.

feat criticality code justification, 0.719 inches minimum and 0.750 inches maximum fastener length, 0.150 inches minimum and 0.163 inches maximum head height, mrap - buffalo mk2a2;mrap - m-atv with cs13 pop and sne; mrap - m-atv ui; mrap - cougar tow - medium mine protected vehicle - mmpv; multiple launch rocket system (mlrs); armored multi-purpose vehicle (ampv); a4 bradley fighting vehicle; a3 bradley fighting vehicle; high-mobility artillery rocket system (himars) end item identification, hexagon head style

NSN: 5305-00-068-0508
Federal Supply Group: Hardware and Abrasives
Federal Supply Classification: 5305 -Screws
Item Identification Number: 00-068-0508
Requires Demilitarization?: Yes
INC: 18257
Assigment Date: Tue, Jan 1, 1963
Schedule B Code: 7318152000
End Item Identification: mrap - buffalo mk2a2;mrap - m-atv with cs13 pop and sne; mrap - m-atv ui; mrap - cougar tow - medium mine protected vehicle - mmpv; multiple launch rocket system (mlrs); armored multi-purpose vehicle (ampv); a4 bradley fighting vehicle; a3 bradley fighting vehicle; high-mobility artillery rocket system (himars)
Criticality Code Justification: feat
Fastener Length: 0.719 inches minimum and 0.750 inches maximum
Head Height: 0.150 inches minimum and 0.163 inches maximum
Head Style: hexagon
Material Document And Classification: 66 fed std all material responses overall
Material: steel comp 1013 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1022 or steel comp 1023 or steel comp 1524 or steel comp 1025 or steel comp 1026 or steel comp 1527 or steel comp 1029 or steel comp 1030 or steel comp 1033 or steel comp 1034 or steel comp 1035 or steel comp 1536 or steel comp 1037 or steel comp 1038 or steel comp 1039 or steel comp 1040 or steel comp 1541 overall
Minimum Tensile Strength: 150000 pounds per square inch
Nominal Thread Diameter: 0.250 inches
Special Features: weapon system essential
Surface Finish: 63.0 microinches threads
Surface Treatment Document And Classification: astm b633 ty 2 sc 3 assn std single treatment response overall
Surface Treatment
Thread Class: 2a
Thread Direction: right-hand
Thread Length: 0.594 inches minimum and 0.750 inches maximum
Thread Quantity Per Inch: 20
Thread Series Designator: unified national coarse (unc)
Width Between Flats: 0.428 inches minimum and 0.438 inches maximum

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Frequently Asked Questions

What is the FSCG of the NSN 5305-00-068-0508?: The FSCG of the NSN 5305-00-068-0508 is 5305

Does the NSN 5305-00-068-0508 have a Schedule B code assigned?: Yes, the Schedule B code is 7318152000

Does NSN 5305-00-068-0508 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 5305-00-068-0508 contain precious materials?: Item does not contain precious metal.

Does NSN 5305-00-068-0508 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.