BYRF1072

View detailed technical data, stock status, and sourcing information for: BYRF1072
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-998-3219

Item Name Code

06657

Assigment Date

04/18/1967 (59 years ago)

right-hand thread direction, flat countersunk head style, 0.312 inches nominal thread length, 2a thread class, 0.312 inches nominal fastener 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: 2a
Thread Direction: right-hand
Thread Length: 0.312 inches nominal
Fastener Length: 0.312 inches nominal
Head Style: flat countersunk
Head Diameter: 0.147 inches minimum and 0.172 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.086 inches
Features Provided: casehardened
Thread Quantity Per Inch: 56
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: steel
Thread Series Designator: unc

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
BYRF1072	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-998-3219?

The FSCG of the NSN 5305-00-998-3219 is 5305

Does the NSN 5305-00-998-3219 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-998-3219 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 5305-00-998-3219 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-998-3219 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 5305-00-998-3219 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Tue, Apr 18, 1967