5305-00-121-8118

Find complete technical information, availability, and procurement data for: 5305-00-121-8118
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-121-8118

Item Name Code

06660

Assigment Date

10/25/1968 (57 years ago)

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

0.619 inches minimum and 0.650 inches maximum thread length, 0.719 inches minimum and 0.750 inches maximum fastener length, right-hand thread direction, pan no. 2 head style, 2a thread class

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: 0.619 inches minimum and 0.650 inches maximum
Fastener Length: 0.719 inches minimum and 0.750 inches maximum
Head Style: pan no. 2
Head Diameter: 0.473 inches minimum and 0.492 inches maximum
Head Height: 0.130 inches minimum and 0.144 inches maximum
Washer Quantity: 1
Internal Drive Style: slot
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Hardness Rating: 40.0 rockwell c minimum and 50.0 rockwell c maximum primary washer
Hardness Rating: 30.0 rockwell c minimum and 40.0 rockwell c maximum fastener
Primary Washer Outside Diameter: 0.494 inches minimum and 0.506 inches maximum
Primary Washer Style: flat external teeth
Primary Washer Material Thickness: 0.025 inches nominal
Material: steel comp 1022 fastener
Material: steel comp 1050 primary washer
Material Document And Classification: sae assn std single material response fastener
Material Document And Classification: sae assn std single material response primary washer
Surface Treatment: cadmium 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
304607	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-00-121-8118?

The FSCG of the NSN 5305-00-121-8118 is 5305

Does the NSN 5305-00-121-8118 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-121-8118 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 5305-00-121-8118 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-121-8118 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 5305-00-121-8118 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Oct 25, 1968