20704999

View detailed technical data, stock status, and sourcing information for: 20704999
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-551-7491

Item Name Code

01857

Assigment Date

05/24/2007 (19 years ago)

A rigid tubular item designed to direct the exhaust gases away from an engine, heater, or the like. For flexible items, see hose, metallic.

hexagon nut style, 0.500 inches maximum width across flats, 2b thread class, right-hand thread direction, 0.258 inches minimum and 0.273 inches maximum nut height

Product Characteristics

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

Thread Class: 2b
Thread Direction: right-hand
Nut Style: hexagon
Nut Height: 0.258 inches minimum and 0.273 inches maximum
Width Across Flats: 0.500 inches maximum
Thread Series: unc
Thread Quantity Per Inch: 18
Nominal Thread Size: 0.312 inches
Part Name Assigned By Controlling Agency: nut, hex

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
20704999	Hexagon Plain Nut
22AX20	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-551-7491?

The FSCG of the NSN 5310-01-551-7491 is 5310

Does NSN 5310-01-551-7491 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 5310-01-551-7491 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-551-7491 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 5310-01-551-7491 was assigned to the Federal Catalog?

It was assigned 19 years ago, on Thu, May 24, 2007