752-6406821-114

View detailed technical data, stock status, and sourcing information for: 752-6406821-114
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-442-9734

Item Name Code

16282

Assigment Date

03/28/1997 (29 years ago)

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

3.250 inches nominal fastener length, 1.750 inches nominal thread length, flat chamfer head style, 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: 1.750 inches nominal
Fastener Length: 3.250 inches nominal
Head Style: flat chamfer
Head Diameter: 0.921 inches minimum and 0.928 inches maximum
Head Height: 0.616 inches minimum and 0.625 inches maximum
Locking Feature: patch or pellet or strip threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.625 inches
Width Across Flats: 0.500 inches nominal
Thread Quantity Per Inch: 11
Minimum Tensile Strength: 170000 pounds per square inch
Hardness Rating: 37.0 rockwell c minimum and 45.0 rockwell c minimum fastener
Minimum Yield Strength: 153000 pounds per square inch
Material: plastic polyamide (nylon) locking feature
Material: steel comp 4340 fastener
Material Document And Classification: astm a574 assn std single material response fastener
Thread Series Designator: unrc

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
211054669	Socket Head Cap Screw
752-6406821-114	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-442-9734?

The FSCG of the NSN 5305-01-442-9734 is 5305

Does the NSN 5305-01-442-9734 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-442-9734 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 5305-01-442-9734 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-442-9734 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 5305-01-442-9734 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Fri, Mar 28, 1997