5305-01-030-0551

Find complete technical information, availability, and procurement data for: 5305-01-030-0551
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-030-0551

Item Name Code

16282

Assigment Date

10/27/1976 (49 years ago)

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

flat chamfer head style, 0.525 inches minimum and 0.625 inches maximum thread length, 0.625 inches nominal 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: 0.525 inches minimum and 0.625 inches maximum
Fastener Length: 0.625 inches nominal
Head Style: flat chamfer
Head Diameter: 0.365 inches minimum and 0.375 inches maximum
Head Height: 0.244 inches minimum and 0.250 inches maximum
Locking Feature: patch or pellet or strip threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.188 inches nominal
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 80000 pounds per square inch
Hardness Rating: 80.0 rockwell b minimum overall
Material: plastic locking feature
Material: steel comp 302 or steel comp 304 or steel comp 305 or steel comp 316 or steel comp 384 fastener
Surface Treatment: passivate 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
317207-C-587	Socket Head Cap Screw
3176207-C-587	Socket Head Cap Screw
5305PL1252446	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-030-0551?

The FSCG of the NSN 5305-01-030-0551 is 5305

Does the NSN 5305-01-030-0551 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-030-0551 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 5305-01-030-0551 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-030-0551 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 5305-01-030-0551 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Wed, Oct 27, 1976