5305-00-018-7180

Find complete technical information, availability, and procurement data for: 5305-00-018-7180
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-018-7180

Item Name Code

06660

Assigment Date

01/01/1963 (63 years ago)

A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

right-hand thread direction, 2a thread class, 0.688 inches minimum and 0.750 inches maximum thread length, round head style, 0.750 inches nominal fastener length

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: 0.688 inches minimum and 0.750 inches maximum
Fastener Length: 0.750 inches nominal
Head Style: round
Head Diameter: 0.334 inches minimum and 0.359 inches maximum
Head Height: 0.123 inches minimum and 0.137 inches maximum
Washer Quantity: 1
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Hardness Rating: 40.0 rockwell c minimum and 50.0 rockwell c maximum primary washer
Primary Washer Outside Diameter: 0.365 inches minimum and 0.381 inches maximum
Primary Washer Style: flat external teeth
Primary Washer Material Thickness: 0.018 inches minimum and 0.024 inches maximum
Material: steel overall
Surface Treatment: cadmium or zinc overall
Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 fed spec 1st treatment response or qq-z-325,ty 1,cl 3 fed spec 2nd treatment response overall
Thread Series Designator: unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-188-0224	No Name Available	03/01/2008
5305-00-685-2305	No Name Available	06/01/1976
5305-00-721-8450	No Name Available	02/01/1983
5305-00-895-2143	No Name Available	11/03/1971

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
187180	Assembled Washer Screw
79911	Assembled Washer Screw
A8044-12	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-00-018-7180?

The FSCG of the NSN 5305-00-018-7180 is 5305

Does the NSN 5305-00-018-7180 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-018-7180 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 5305-00-018-7180 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-018-7180 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 5305-00-018-7180 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963