5305-00-638-8677

Find complete technical information, availability, and procurement data for: 5305-00-638-8677
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-638-8677

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

right-hand thread direction, 1.579 inches minimum and 1.609 inches maximum fastener length, 3a thread class, flat countersunk head style, 0.406 inches minimum thread 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: 3a
Thread Direction: right-hand
Thread Length: 0.406 inches minimum
Fastener Length: 1.579 inches minimum and 1.609 inches maximum
Head Style: flat countersunk
Head Diameter: 0.332 inches minimum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: nickel alloy k-500 or copper alloy 172
Screw Material Document And Classification: qq-n-286 cl a fed spec 1st material response or qq-c-530 cond a fed spec 2nd material response
Screw Surface Treatment: cadmium
Screw Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 fed spec single treatment response
Thread Series Designator: unf

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
BACB30BF3K19	Machine Screw
BACB30LH3U19	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-638-8677?

The FSCG of the NSN 5305-00-638-8677 is 5305

Does NSN 5305-00-638-8677 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 5305-00-638-8677 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-638-8677 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 5305-00-638-8677 was assigned to the Federal Catalog?

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