5305-01-288-6063

Find complete technical information, availability, and procurement data for: 5305-01-288-6063
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-288-6063

Item Name Code

06657

Assigment Date

11/10/1988 (37 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.

2a thread class, 0.374 inches nominal head diameter, right-hand thread direction, 0.812 inches nominal thread length, ball head style

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: 0.812 inches nominal
Head Style: ball
Head Diameter: 0.374 inches nominal
Head Height: 0.408 inches nominal
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 32
Screw Material: copper alloy
Special Features: flat on top of ball head 0.209 in. width;0.158 in. length from top to most fullness of ball head
Thread Series Designator: unef

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
21049526-102	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-288-6063?

The FSCG of the NSN 5305-01-288-6063 is 5305

Does the NSN 5305-01-288-6063 have a Schedule B code assigned?

Yes, the Schedule B code is 7415338550

Does NSN 5305-01-288-6063 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 5305-01-288-6063 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-288-6063 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 5305-01-288-6063 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Thu, Nov 10, 1988