5305-00-285-5272

Find complete technical information, availability, and procurement data for: 5305-00-285-5272
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-285-5272

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, pan no. 2 head style, 0.500 inches nominal fastener length, 0.324 inches minimum and 0.472 inches maximum thread length, 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: 0.324 inches minimum and 0.472 inches maximum
Fastener Length: 0.500 inches nominal
Head Style: pan no. 2
Head Diameter: 0.594 inches minimum and 0.615 inches maximum
Head Height: 0.162 inches minimum and 0.178 inches maximum
Washer Quantity: 1
Internal Drive Style: slot
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 18
Hardness Rating: 40.0 rockwell c minimum and 50.0 rockwell c maximum primary washer
Primary Washer Outside Diameter: 0.588 inches minimum and 0.610 inches maximum
Primary Washer Style: flat external teeth
Primary Washer Material Thickness: 0.028 inches minimum and 0.034 inches maximum
Material: steel comp 1010 or steel comp 1011 or steel comp 1013 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 fastener
Material: steel comp 1050 or steel comp 1551 or steel comp 1552 or steel comp 1053 or steel comp 1054 or steel comp 1055 or steel comp 1059 or steel comp 1060 or steel comp 1561 or steel comp 1566 primary washer
Material Document And Classification: sae assn std all material responses primary washer
Material Document And Classification: sae assn std all material responses fastener
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: 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
"SEMS 5/16"-18 X 1/2"LG"	Assembled Washer Screw
442689	Assembled Washer Screw
H-4323 ITEM NO. 022	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-00-285-5272?

The FSCG of the NSN 5305-00-285-5272 is 5305

Does the NSN 5305-00-285-5272 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-285-5272 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 5305-00-285-5272 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-285-5272 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 5305-00-285-5272 was assigned to the Federal Catalog?

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