5305-01-670-3746

Find complete technical information, availability, and procurement data for: 5305-01-670-3746
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-670-3746

Item Name Code

18257

Assigment Date

02/20/2018 (8 years ago)

A flexible, tubular item having a nonmetallic tube inner conveying surface and one or more reinforcement layers of a metallic or nonmetallic material. It is designed to convey gasses, liquids, or solids. For items with fittings on one or both ends, see hose assembly, nonmetallic. Excludes:hose, air duct; and hose air duct, air breathing.

2a thread class, right-hand thread direction, 1.250 inches nominal thread length, 1.250 inches nominal fastener length, hexagon extended washer head 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: 2a
Thread Direction: right-hand
Thread Length: 1.250 inches nominal
Fastener Length: 1.250 inches nominal
Head Style: hexagon extended washer
Head Height: 0.32 inches maximum
Width Between Flats: 0.4890 inches minimum and 0.5000 inches maximum
Extended Washer Diameter: 0.68 inches maximum
Extended Washer Thickness: 0.05 inches minimum
End Item Identification: 2320-01-465-2174
Nominal Thread Diameter: 0.3125 inches
Thread Quantity Per Inch: 18
Part Name Assigned By Controlling Agency: screw, hex, flange
Color: yellow overall
Material: steel overall
Material Document And Classification: sae j429 national std single material response overall
Surface Treatment: zinc overall
Surface Treatment Document And Classification: astm f1941, zinc coating fe/zn, type 5c assn std single treatment response 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
0155843	Hexagon Head Cap Screw
AESA0C312A25WA2DG1	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-670-3746?

The FSCG of the NSN 5305-01-670-3746 is 5305

Does the NSN 5305-01-670-3746 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-670-3746 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 5305-01-670-3746 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-670-3746 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 5305-01-670-3746 was assigned to the Federal Catalog?

It was assigned 8 years ago, on Tue, Feb 20, 2018