5305-01-166-6140

Find complete technical information, availability, and procurement data for: 5305-01-166-6140
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-166-6140

Item Name Code

29294

Assigment Date

11/15/1983 (42 years ago)

right-hand thread direction, 3a thread class, flat countersunk head style, 1.722 inches minimum and 1.752 inches maximum fastener length, 0.400 inches minimum and 0.450 inches maximum thread length

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: 0.400 inches minimum and 0.450 inches maximum
Fastener Length: 1.722 inches minimum and 1.752 inches maximum
Head Style: flat countersunk
Head Diameter: 0.455 inches minimum and 0.510 inches maximum
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Grip Length: 1.302 inches minimum and 1.322 inches maximum
Thread Quantity Per Inch: 28
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Material: steel comp e4340 or steel comp 8740 overall
Material Document And Classification: mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams 6322 assn std 2nd material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 type 2 class 2 fed spec single treatment response overall
Thread Series Designator: unjf

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
BACB30LU4-21	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-166-6140?

The FSCG of the NSN 5305-01-166-6140 is 5305

Does the NSN 5305-01-166-6140 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-166-6140 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 5305-01-166-6140 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-166-6140 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 5305-01-166-6140 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Tue, Nov 15, 1983