5305-00-820-6356

Find complete technical information, availability, and procurement data for: 5305-00-820-6356
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-820-6356

Item Name Code

06660

Assigment Date

01/01/1962 (64 years ago)

2a thread class, 0.211 inches maximum thread length, right-hand thread direction, pan no. 2 head style, 0.312 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: 0.211 inches maximum
Fastener Length: 0.312 inches nominal
Head Style: pan no. 2
Head Diameter: 0.256 inches minimum and 0.270 inches maximum
Head Height: 0.072 inches minimum and 0.082 inches maximum
Washer Quantity: 2
Internal Drive Style: slot
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Hardness Rating: 45.0 rockwell c minimum and 53.0 rockwell c maximum secondary washer
Secondary Washer Relationship To Primary Washer: not identical
Secondary Washer Style: flat
Primary Washer Outside Diameter: 0.250 inches nominal
Secondary Washer Outside Diameter: 0.258 inches nominal
Primary Washer Style: split helical ring
Primary Washer Material Thickness: 0.031 inches nominal
Secondary Washer Material Thickness: 0.016 inches nominal
Special Features: lockwasher and washer not rated screw 55000 poundsper square inch
Material: steel comp 1010 or steel or steel comp 1020 or steel comp 1025 overall
Material Document And Classification: qq-s-634 fed spec 1st material response or 66,1060-1080 fed std 2nd material response or qq-s-636 fed spec 2nd material response or mil-s-7952 mil spec 3rd material response or mil-s-7952 mil spec 4th material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,cl 3 fed spec all treatment responses overall
Thread Series Designator: unc
Specification/Standard Data: 80205-nas720 professional/industrial association standard

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
NAS720-6-5	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-00-820-6356?

The FSCG of the NSN 5305-00-820-6356 is 5305

Does the NSN 5305-00-820-6356 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-820-6356 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 5305-00-820-6356 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-820-6356 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 5305-00-820-6356 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962