5305-01-280-7988

Find complete technical information, availability, and procurement data for: 5305-01-280-7988
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-280-7988

Item Name Code

06672

Assigment Date

06/13/1988 (38 years ago)

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

right-hand thread direction, 0.810 inches minimum and 0.850 inches maximum thread length, 3a thread class, headless (setscrew) head style, 0.855 inches minimum and 0.895 inches maximum 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: 3a
Thread Direction: right-hand
Thread Length: 0.810 inches minimum and 0.850 inches maximum
Fastener Length: 0.855 inches minimum and 0.895 inches maximum
Head Style: headless (setscrew)
Locking Feature: strip threads
Point Style: half dog
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.190 inches
Width Across Flats: 0.0937 inches minimum and 0.0952 inches maximum
Thread Quantity Per Inch: 24
Part Name Assigned By Controlling Agency: navy special project
Material: plastic polyamide (nylon) locking feature
Material: steel comp 302 or steel comp 302b or steel comp 303 or steel comp 303 plus x or steel comp 303se or steel comp 303cu or steel comp 303ma or steel comp 304 or steel comp 304l fastener
Surface Treatment: passivate fastener
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response fastener
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
6307539	Setscrew
H75C124-014E	Setscrew
LP57XF04J14	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-01-280-7988?

The FSCG of the NSN 5305-01-280-7988 is 5305

Does the NSN 5305-01-280-7988 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-280-7988 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 5305-01-280-7988 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-280-7988 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 5305-01-280-7988 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Mon, Jun 13, 1988