5305-01-657-1666

Find complete technical information, availability, and procurement data for: 5305-01-657-1666
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-657-1666

Item Name Code

18257

Assigment Date

08/02/2016 (9 years ago)

Two or more individual fixed, variable, thermal, or adjustable resistors on a common mounting or mounted on each other. The resistors must be separable and each must be capable of functioning in accordance with its applicable item name. For variable resistors mounted in tandem with a common or dual concentric shaft, see resistor, variable (as modified) and attenuator, variable. For inseparable resistors permanently cased, sealed or potted together to form a multisection unit, see resistor assortment; resistor set, matched; and items which have wire leads temporarily twisted together, or are otherwise physically attached solely for convenience in handling or shipping.

2a thread class, hexagon head style, 1.000 inches nominal fastener length, 0.750 inches nominal thread length, right-hand thread direction

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: 0.750 inches nominal
Fastener Length: 1.000 inches nominal
Head Style: hexagon
Head Height: 0.150 inches minimum and 0.163 inches maximum
Width Between Flats: 0.428 inches minimum and 0.438 inches maximum
End Item Identification: 2350-01-577-0830
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Part Name Assigned By Controlling Agency: screw cap hex (finished hex bolt)
Material: steel uns k04100 overall
Surface Treatment: zinc and chromate 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
AES01C250A00AW9A81	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-657-1666?

The FSCG of the NSN 5305-01-657-1666 is 5305

Does the NSN 5305-01-657-1666 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-657-1666 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 5305-01-657-1666 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-657-1666 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 5305-01-657-1666 was assigned to the Federal Catalog?

It was assigned 9 years ago, on Tue, Aug 2, 2016