AS5178W20

View detailed technical data, stock status, and sourcing information for: AS5178W20
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-587-9734

Item Name Code

01857

Assigment Date

08/27/2010 (15 years ago)

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.

3b thread class, right-hand thread direction, 0.406 inches nominal nut height, 1.926 inches minimum and 1.943 inches maximum width across flats, hexagon nut style

Product Characteristics

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

Thread Class: 3b
Thread Direction: right-hand
Nut Style: hexagon
Nut Height: 0.406 inches nominal
Width Across Flats: 1.926 inches minimum and 1.943 inches maximum
Thread Series: unj
Thread Quantity Per Inch: 12
Nominal Thread Size: 1.625 inches
Bearing Surface Type: chamfered
Material: aluminum alloy overall

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
AS5178W20	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-587-9734?

The FSCG of the NSN 5310-01-587-9734 is 5310

Does the NSN 5310-01-587-9734 have a Schedule B code assigned?

Yes, the Schedule B code is 7616106000

Does NSN 5310-01-587-9734 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 5310-01-587-9734 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-587-9734 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 5310-01-587-9734 was assigned to the Federal Catalog?

It was assigned 15 years ago, on Fri, Aug 27, 2010