R1057P10L

View detailed technical data, stock status, and sourcing information for: R1057P10L
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-223-5743

Item Name Code

16282

Assigment Date

01/02/1986 (40 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

0.312 inches nominal width between flats, hexagon head style, 0.250 inches nominal head length, 0.082 inches maximum hole diameter, 0.750 inches nominal fastener length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Fastener Length: 0.750 inches nominal
Head Style: hexagon
Head Length: 0.250 inches nominal
Width Between Flats: 0.312 inches nominal
Hole Diameter: 0.082 inches maximum
Width Across Flats: 0.212 inches minimum and 0.220 inches maximum
Hole Quantity: 1
Hardness Rating: 26.0 rockwell c minimum and 33.0 rockwell c maximum overall
Chamfer Angle: 45.0 degrees maximum
Part Name Assigned By Controlling Agency: bolt, 12 point head
Special Features: material: heat resistant steel per ams 5735; surface roughness: as107
Material: steel overall
Thread Series Designator: unc

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
R1057P10L	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-223-5743?

The FSCG of the NSN 5305-01-223-5743 is 5305

Does the NSN 5305-01-223-5743 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-223-5743 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 5305-01-223-5743 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-223-5743 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 5305-01-223-5743 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Thu, Jan 2, 1986