LS9851C4C

View detailed technical data, stock status, and sourcing information for: LS9851C4C
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-492-2340

Item Name Code

15933

Assigment Date

07/02/1974 (52 years ago)

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

0.335 inches minimum and 0.345 inches maximum recess diameter, 0.465 inches minimum and 0.475 inches maximum outside diameter, 0.251 inches minimum and 0.255 inches maximum hole diameter, 40.0 degrees minimum and 50.0 degrees maximum recess angle, 0.053 inches minimum and 0.073 inches maximum material thickness

Product Characteristics

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

Hole Diameter: 0.251 inches minimum and 0.255 inches maximum
Outside Diameter: 0.465 inches minimum and 0.475 inches maximum
Recess Diameter: 0.335 inches minimum and 0.345 inches maximum
Material Thickness: 0.053 inches minimum and 0.073 inches maximum
Recess Angle: 40.0 degrees minimum and 50.0 degrees maximum
Material Document And Classification: ams 5525 assn std single material response or ams 5737 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Style Designator: recessed

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
LS9851C4C	Recessed Washer

FAQs

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

What is the FSCG of the NSN 5310-00-492-2340?

The FSCG of the NSN 5310-00-492-2340 is 5310

Does NSN 5310-00-492-2340 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 5310-00-492-2340 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-492-2340 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 5310-00-492-2340 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Tue, Jul 2, 1974