166345PC12

View detailed technical data, stock status, and sourcing information for: 166345PC12
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-273-4947

Item Name Code

16282

Assigment Date

01/01/1963 (63 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

1.500 inches nominal fastener length, 3a thread class, right-hand thread direction, flat chamfer head style, 0.200 inches nominal 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: 0.200 inches nominal
Fastener Length: 1.500 inches nominal
Head Style: flat chamfer
Head Diameter: 0.615 inches minimum and 0.625 inches maximum
Head Height: 0.430 inches minimum and 0.438 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.438 inches
Width Across Flats: 0.312 inches minimum and 0.315 inches maximum
Thread Quantity Per Inch: 14
Hardness Rating: 36.0 rockwell c minimum and 43.0 rockwell c maximum overall
Minimum Yield Strength: 140000 pounds per square inch
Material: steel comp 4135 or steel comp 4137 or steel comp 8635 or steel comp 8640 overall
Material Document And Classification: qq-s-624 fed spec all material responses overall
Surface Treatment: zinc overall
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 11 style

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
12Z51PC386	Socket Head Cap Screw
166345PC12	Socket Head Cap Screw
200022PC9	Socket Head Cap Screw
273602PC11	Socket Head Cap Screw
43-S-4369-60	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-273-4947?

The FSCG of the NSN 5305-00-273-4947 is 5305

Does the NSN 5305-00-273-4947 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-273-4947 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 5305-00-273-4947 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-273-4947 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 5305-00-273-4947 was assigned to the Federal Catalog?

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