5305-00-271-7228

Find complete technical information, availability, and procurement data for: 5305-00-271-7228
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-271-7228

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.

3a thread class, flat countersunk head style, 1.328 inches minimum and 1.375 inches maximum fastener length, 0.437 inches minimum and 0.516 inches maximum thread length, right-hand thread direction

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: 0.437 inches minimum and 0.516 inches maximum
Fastener Length: 1.328 inches minimum and 1.375 inches maximum
Head Style: flat countersunk
Head Diameter: 0.327 inches minimum and 0.385 inches maximum
Internal Drive Style: cross recess type 1
End Item Identification: spec item
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: copper alloy
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
AN509P10R21	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-271-7228?

The FSCG of the NSN 5305-00-271-7228 is 5305

Does the NSN 5305-00-271-7228 have a Schedule B code assigned?

Yes, the Schedule B code is 7415338550

Does NSN 5305-00-271-7228 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 5305-00-271-7228 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-271-7228 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 5305-00-271-7228 was assigned to the Federal Catalog?

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