228320

View detailed technical data, stock status, and sourcing information for: 228320
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-591-3435

Item Name Code

06660

Assigment Date

01/01/1963 (63 years ago)

0.219 inches minimum and 0.250 inches maximum fastener length, 2a thread class, 0.134 inches minimum and 0.232 inches maximum thread length, right-hand thread direction, round head style

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: 0.134 inches minimum and 0.232 inches maximum
Fastener Length: 0.219 inches minimum and 0.250 inches maximum
Head Style: round
Head Diameter: 0.287 inches minimum and 0.309 inches maximum
Head Height: 0.107 inches minimum and 0.120 inches maximum
Washer Quantity: 1
Internal Drive Style: slot
Nominal Thread Diameter: 0.164 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: 0.305 inches minimum and 0.320 inches maximum
Primary Washer Style: flat external teeth
Primary Washer Material Thickness: 0.018 inches minimum and 0.023 inches maximum
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

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
6115-00-898-4097	No Name Available	06/10/1970
5305-01-030-4259	No Name Available	12/01/1978

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
124A9321AD004	Assembled Washer Screw
228320	Assembled Washer Screw
5305005913435	Assembled Washer Screw
JHP68-142	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-00-591-3435?

The FSCG of the NSN 5305-00-591-3435 is 5305

Does NSN 5305-00-591-3435 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 5305-00-591-3435 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-591-3435 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 5305-00-591-3435 was assigned to the Federal Catalog?

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