3HR629

View detailed technical data, stock status, and sourcing information for: 3HR629
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-447-5699

Item Name Code

18257

Assigment Date

08/09/1997 (29 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.

0.850 inches minimum and 0.880 inches maximum fastener length, 0.710 inches minimum and 0.880 inches maximum thread length, right-hand thread direction, hexagon head style, 2a thread class

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: 0.710 inches minimum and 0.880 inches maximum
Fastener Length: 0.850 inches minimum and 0.880 inches maximum
Head Style: hexagon
Head Height: 0.200 inches nominal
Width Between Flats: 0.480 inches minimum and 0.500 inches maximum
Locking Feature: patch or pellet threads
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 120000 pounds per square inch
Material: plastic polyamide (nylon) locking feature
Material: steel fastener
Material Document And Classification: sae j429 gr 5 assn std single material response or bw-278-m mfr ref single material response fastener
Surface Treatment: zinc and chromium fastener
Surface Treatment Document And Classification: bw-162a-p mfr ref 1st treatment response and bw-307a-p mfr ref 2nd 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
237315	Hexagon Head Cap Screw
3HR629	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-447-5699?

The FSCG of the NSN 5305-01-447-5699 is 5305

Does the NSN 5305-01-447-5699 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-447-5699 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 5305-01-447-5699 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-447-5699 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 5305-01-447-5699 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Sat, Aug 9, 1997