5305-01-669-6439

Find complete technical information, availability, and procurement data for: 5305-01-669-6439
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-669-6439

Item Name Code

06657

Assigment Date

01/18/2018 (8 years ago)

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes:nut (1), self-locking, cap.

1.250 inches minimum and 1.312 inches maximum fastener length, 1.250 inches minimum and 1.312 inches maximum thread length, right-hand thread direction, 3a thread class, 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: 3a
Thread Direction: right-hand
Thread Length: 1.250 inches minimum and 1.312 inches maximum
Fastener Length: 1.250 inches minimum and 1.312 inches maximum
Head Style: flat countersunk
Head Diameter: 0.282 inches minimum and 0.332 inches maximum
Internal Drive Style: cross recess type ii
End Item Identification: b-52
Nominal Thread Diameter: 0.1640 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 1740 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned By Controlling Agency: screw,machine,100 deg,flat head,full threaded,alloy steel
Screw Material: steel comp 4130 or steel comp 4340 or steel comp 8740
Screw Material Document And Classification: ams-s-6758 assn std 1st material response or ams6415 or ams6484 assn std 2nd material response or ams6322,ams6325,or ams6327 assn std 3rd material response
Screw Surface Treatment: cadmium or chromate
Screw Surface Treatment Document And Classification: ms-qq-p-416, type ii, class 2 assn std single treatment response
Thread Series Designator: unjc
Specification/Standard Data: 80205-nas514 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
NAS514P832-21P	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-669-6439?

The FSCG of the NSN 5305-01-669-6439 is 5305

Does the NSN 5305-01-669-6439 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-669-6439 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 5305-01-669-6439 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-669-6439 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 5305-01-669-6439 was assigned to the Federal Catalog?

It was assigned 8 years ago, on Thu, Jan 18, 2018