BL-4724

View detailed technical data, stock status, and sourcing information for: BL-4724
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-837-9918

Item Name Code

06672

Assigment Date

12/09/1966 (59 years ago)

3a thread class, right-hand thread direction, 0.302 inches minimum and 0.322 inches maximum thread length, 0.302 inches minimum and 0.322 inches maximum fastener length, headless (setscrew) head style

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: 0.302 inches minimum and 0.322 inches maximum
Fastener Length: 0.302 inches minimum and 0.322 inches maximum
Head Style: headless (setscrew)
Spline Minor Diameter: 0.055 inches minimum and 0.056 inches maximum
Spline Major Diameter: 0.078 inches minimum and 0.079 inches maximum
Spline Width: 0.022 inches minimum and 0.023 inches maximum
Locking Feature: strip threads
Point Style: cup
Internal Drive Style: four spline
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Hardness Rating: 45.0 rockwell c minimum and 53.0 rockwell c maximum overall
Material: plastic locking feature
Material: steel comp 4037 or steel comp 4137 or steel comp 4140 or steel comp 8630 or steel comp 8740 fastener
Material Document And Classification: 66 fed std all material responses fastener
Surface Treatment: cadmium and chromate fastener
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response fastener
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 2 type and 4 style
Departure From Cited Designator: asmodified by locking feature

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
BL-4724	Setscrew
LP565D6L5	Setscrew
LP65XD62K5	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-00-837-9918?

The FSCG of the NSN 5305-00-837-9918 is 5305

Does the NSN 5305-00-837-9918 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-837-9918 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 5305-00-837-9918 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-837-9918 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 5305-00-837-9918 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Fri, Dec 9, 1966