BYRF603

View detailed technical data, stock status, and sourcing information for: BYRF603
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-840-5302

Item Name Code

06657

Assigment Date

01/01/1962 (64 years ago)

right-hand thread direction, pan no. 2 head style, 0.788 inches minimum and 0.880 inches maximum thread length, 0.850 inches minimum and 0.880 inches maximum fastener length, 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: 0.788 inches minimum and 0.880 inches maximum
Fastener Length: 0.850 inches minimum and 0.880 inches maximum
Head Style: pan no. 2
Head Diameter: 0.256 inches minimum and 0.270 inches maximum
Head Height: 0.087 inches minimum and 0.097 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum
Screw Material: steel comp 4037 or steel comp 8630
Screw Material Document And Classification: ams 6300 assn std 1st material response or mil-s-6050 mil spec 2nd material response
Screw Surface Treatment: cadmium and chromate
Screw Surface Treatment Document And Classification: qq-p-416,ty 2 cl 2 fed spec single treatment response
Thread Series Designator: unjc
Specification/Standard Data: 80205-nas 601 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
BYRF603	Machine Screw
NAS601-14P	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-840-5302?

The FSCG of the NSN 5305-00-840-5302 is 5305

Does the NSN 5305-00-840-5302 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-840-5302 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 5305-00-840-5302 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-840-5302 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 5305-00-840-5302 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962