NAS662B1-4

View detailed technical data, stock status, and sourcing information for: NAS662B1-4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-170-6138

Item Name Code

06657

Assigment Date

01/27/1984 (42 years ago)

0.220 inches minimum and 0.250 inches maximum fastener length, 0.173 inches minimum and 0.220 inches maximum thread length, 2a thread class, right-hand thread direction, flat countersunk 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: 0.173 inches minimum and 0.220 inches maximum
Fastener Length: 0.220 inches minimum and 0.250 inches maximum
Head Style: flat countersunk
Head Diameter: 0.120 inches minimum and 0.146 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.073 inches
Thread Quantity Per Inch: 64
Minimum Tensile Strength: 55000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned By Controlling Agency: navy special project
Screw Material: copper alloy 360
Screw Material Document And Classification: qq-b-626 comp 22 fed spec single material response
Thread Series Designator: unc
Specification/Standard Data: 80205-nas662 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
NAS662B1-4	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-170-6138?

The FSCG of the NSN 5305-01-170-6138 is 5305

Does the NSN 5305-01-170-6138 have a Schedule B code assigned?

Yes, the Schedule B code is 7415338550

Does NSN 5305-01-170-6138 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 5305-01-170-6138 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-170-6138 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 5305-01-170-6138 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Fri, Jan 27, 1984