5305-01-078-5070

Find complete technical information, availability, and procurement data for: 5305-01-078-5070
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-078-5070

Item Name Code

16282

Assigment Date

06/15/1979 (47 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

0.449 inches minimum and 0.489 inches maximum thread length, flat countersunk undercut head style, 0.636 inches minimum and 0.676 inches maximum fastener 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: 0.449 inches minimum and 0.489 inches maximum
Fastener Length: 0.636 inches minimum and 0.676 inches maximum
Head Style: flat countersunk undercut
Head Diameter: 0.4640 inches minimum and 0.5066 inches maximum
Head Height: 0.070 inches minimum and 0.073 inches maximum
Locking Feature: pellet threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.1562 inches minimum and 0.1585 inches maximum
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 100.0 degrees nominal
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Special Features: furnished with one o ring
Material: iron alloy 660 overall
Material Document And Classification: ams5732 assn std single material response or ams5737 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35,ty 1,ty 2,ty 3 or ty 6 fed spec single treatment response overall
Thread Series Designator: unjc

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
120387C	Socket Head Cap Screw
642AS0748	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-078-5070?

The FSCG of the NSN 5305-01-078-5070 is 5305

Does the NSN 5305-01-078-5070 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-078-5070 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 5305-01-078-5070 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-078-5070 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 5305-01-078-5070 was assigned to the Federal Catalog?

It was assigned 47 years ago, on Fri, Jun 15, 1979