5305-00-080-0191

Find complete technical information, availability, and procurement data for: 5305-00-080-0191
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-080-0191

Item Name Code

06657

Assigment Date

12/13/1967 (58 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

flat countersunk head style, 0.781 inches nominal fastener length, 0.469 inches minimum thread length, 3a thread class, 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: 0.469 inches minimum
Fastener Length: 0.781 inches nominal
Head Style: flat countersunk
Head Diameter: 0.497 inches minimum and 0.507 inches maximum
Internal Drive Style: cross recess type ii
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum
Countersink Angle: 100.0 degrees nominal
Screw Material: steel
Head Surface Treatment: primer
Shank Surface Treatment: primer and cadmium and chromate
Thread Series Designator: unf

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
3MFR334CFA6	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-080-0191?

The FSCG of the NSN 5305-00-080-0191 is 5305

Does the NSN 5305-00-080-0191 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-080-0191 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 5305-00-080-0191 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-080-0191 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 5305-00-080-0191 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Wed, Dec 13, 1967