HR203-8-16

View detailed technical data, stock status, and sourcing information for: HR203-8-16
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-314-2397

Item Name Code

29294

Assigment Date

01/26/1990 (36 years ago)

flat countersunk head style, 3a thread class, 1.617 inches minimum and 1.664 inches maximum fastener length, 0.633 inches nominal 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: 0.633 inches nominal
Fastener Length: 1.617 inches minimum and 1.664 inches maximum
Head Style: flat countersunk
Head Diameter: 0.951 inches minimum and 1.014 inches maximum
Grip Diameter: 0.4985 inches minimum and 0.4995 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.500 inches
Grip Length: 1.000 inches nominal
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 156000 pounds per square inch
Hardness Rating: 51.0 rockwell c minimum and 54.0 rockwell c maximum overall
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Material: steel comp h11 overall
Material Document And Classification: ams 6487 assn std single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: mil-c-8837 ty 2 cl 2 mil spec single treatment response overall
Thread Series Designator: unjf

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
GB510DE8-16	Close Tolerance Screw
GB510FH8-16P	Close Tolerance Screw
HR203-8-16	Close Tolerance Screw
HR203JL-8-16	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-314-2397?

The FSCG of the NSN 5305-01-314-2397 is 5305

Does the NSN 5305-01-314-2397 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-314-2397 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 5305-01-314-2397 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-314-2397 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 5305-01-314-2397 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Fri, Jan 26, 1990