5305-00-297-7639

Find complete technical information, availability, and procurement data for: 5305-00-297-7639
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-297-7639

Item Name Code

06657

Assigment Date

01/01/1963 (63 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.

0.219 inches minimum and 0.250 inches maximum fastener length, oval countersunk head style, 0.200 inches minimum and 0.250 inches maximum thread length, 2a 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: 2a
Thread Direction: right-hand
Thread Length: 0.200 inches minimum and 0.250 inches maximum
Fastener Length: 0.219 inches minimum and 0.250 inches maximum
Head Style: oval countersunk
Head Diameter: 0.195 inches minimum and 0.225 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.112 inches
Thread Quantity Per Inch: 40
Minimum Tensile Strength: 55000 pounds per square inch
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: copper alloy
Screw Material Document And Classification: qq-b-613 fed spec single material response or qq-b-626 fed spec single material response or qq-w-321 fed spec single material response
Head Surface Treatment: paint
Screw Surface Treatment: enamel
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 1 type and 6s style
Departure From Cited Designator: as modified by minimum yield strength

FAQs

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

What is the FSCG of the NSN 5305-00-297-7639?

The FSCG of the NSN 5305-00-297-7639 is 5305

Does the NSN 5305-00-297-7639 have a Schedule B code assigned?

Yes, the Schedule B code is 7415338550

Does NSN 5305-00-297-7639 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 5305-00-297-7639 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-297-7639 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 5305-00-297-7639 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963