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B1821BH025C075L

B1821BH025C075L

Machine Bolt

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

0.719 inches minimum and 0.750 inches maximum fastener length, 0.150 inches minimum and 0.163 inches maximum head height, multiple launch rocket system (mlrs) end item identification, 32.0 rockwell c minimum and 38.0 rockwell c maximum fastener hardness rating, finished head features provided

NSN: 5306-01-175-7558
Federal Supply Group: Hardware and Abrasives
Federal Supply Classification: 5306 -Bolts
Item Identification Number: 01-175-7558
Requires Demilitarization?: Yes
INC: 01847
Assigment Date: Thu, Apr 5, 1984
End Item Identification: multiple launch rocket system (mlrs)
Fastener Length: 0.719 inches minimum and 0.750 inches maximum
Features Provided: finished head
Hardness Rating: 32.0 rockwell c minimum and 38.0 rockwell c maximum fastener
Head Height: 0.150 inches minimum and 0.163 inches maximum
Head Style: hexagon
Locking Feature: patch or strip threads
Material Document And Classification: sae j429,grade 8 assn std single material response or astm a354,grade bd assn std single material response fastener
Material: plastic polyamide nylon locking feature
Material: steel fastener
Minimum Tensile Strength: 150000 pounds per square inch
Nominal Thread Diameter: 0.250 inches
Surface Treatment Document And Classification: astm b633 ty 2 sc 3 assn std single treatment response fastener
Surface Treatment: zinc and chromate fastener
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

Related Parts

Part Number	Manufacturer
AEB02C250750AW9A96	The American Society of Mechanical Engineers
B1821BH025C075L	Circor Pumps North America Llc
B1821BH025C075L	American National Standards Institute Incorporated Dba American National Standards Institute

Frequently Asked Questions

What is the FSCG of the NSN 5306-01-175-7558?: The FSCG of the NSN 5306-01-175-7558 is 5306

Does NSN 5306-01-175-7558 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 5306-01-175-7558 contain precious materials?: Item does not contain precious metal.

Does NSN 5306-01-175-7558 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.