577R005H76

View detailed technical data, stock status, and sourcing information for: 577R005H76
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-049-0621

Item Name Code

06666

Assigment Date

10/10/1977 (48 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes:setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

right-hand thread direction, 3a thread class, 1.190 inches minimum and 1.210 inches maximum fastener length, flat chamfer head style, 0.420 inches minimum and 0.440 inches maximum thread 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: 3a
Thread Direction: right-hand
Thread Length: 0.420 inches minimum and 0.440 inches maximum
Fastener Length: 1.190 inches minimum and 1.210 inches maximum
Head Style: flat chamfer
Head Diameter: 0.275 inches maximum
Head Height: 0.190 inches maximum
First Diameter From Head: 0.145 inches minimum and 0.149 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.750 inches minimum and 0.790 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.190 inches
Width Across Flats: 0.156 inches minimum and 0.158 inches maximum
Thread Quantity Per Inch: 32
Externally Relieved Body Diameter Quantity: 1
Material: steel comp 8740 or steel comp 4130 or steel comp 4140 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 fed spec single treatment response overall
Thread Series Designator: unf

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
577R005H76	Internal Wrenching Bolt
D791519-76	Internal Wrenching Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-049-0621?

The FSCG of the NSN 5306-01-049-0621 is 5306

Does the NSN 5306-01-049-0621 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-049-0621 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 5306-01-049-0621 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-049-0621 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 5306-01-049-0621 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Mon, Oct 10, 1977