HR204-5-20

View detailed technical data, stock status, and sourcing information for: HR204-5-20
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-198-8555

Item Name Code

29294

Assigment Date

01/15/1985 (41 years ago)

flat countersunk head style, 1.714 inches minimum and 1.761 inches maximum fastener length, 0.454 inches minimum and 0.521 inches maximum thread length, right-hand thread direction, 3a thread class

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: 0.454 inches minimum and 0.521 inches maximum
Fastener Length: 1.714 inches minimum and 1.761 inches maximum
Head Style: flat countersunk
Head Diameter: 0.578 inches minimum and 0.634 inches maximum
Grip Diameter: 0.3110 inches minimum and 0.3120 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.312 inches
Grip Length: 1.240 inches minimum and 1.260 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 220000 pounds per square inch
Hardness Rating: 46.0 rockwell c minimum and 50.0 rockwell c maximum overall
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Part Name Assigned By Controlling Agency: navy special project
Special Features: internal drive ribbed
Material: steel comp h11 overall
Material Document And Classification: ams 6487 assn std single material response overall
Surface Treatment: cadmium or cadmium and chromate overall
Surface Treatment Document And Classification: nas 672 assn std 1st treatment response or mil-c-8837,ty 2 cl 3 mil spec 2nd 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
1067066T-5-20	Close Tolerance Screw
GB510CE5-20	Close Tolerance Screw
HR204-5-20	Close Tolerance Screw
PBF1202-5-20	Close Tolerance Screw
SC1779-5-20	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-198-8555?

The FSCG of the NSN 5305-01-198-8555 is 5305

Does the NSN 5305-01-198-8555 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-198-8555 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 5305-01-198-8555 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-198-8555 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 5305-01-198-8555 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Tue, Jan 15, 1985