5305-01-166-0740

Find complete technical information, availability, and procurement data for: 5305-01-166-0740
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-166-0740

Item Name Code

22846

Assigment Date

11/07/1983 (42 years ago)

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

3a thread class, 0.380 inches minimum and 0.447 inches maximum thread length, right-hand thread direction, flat countersunk undercut head style, 0.702 inches minimum and 0.749 inches maximum fastener 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: 0.380 inches minimum and 0.447 inches maximum
Fastener Length: 0.702 inches minimum and 0.749 inches maximum
Head Style: flat countersunk undercut
Head Diameter: 0.338 inches minimum and 0.381 inches maximum
Head Height: 0.032 inches minimum and 0.034 inches maximum
Shoulder Diameter: 0.2177 inches minimum and 0.2182 inches maximum first shoulder
Shoulder Length: 0.268 inches minimum and 0.290 inches maximum first shoulder
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Shoulder Shape: round first shoulder
Special Features: furnished with one o ring
Material: steel comp xm-13 overall
Material Document And Classification: ams 5629 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 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
11879C3-5A	Shoulder Screw
3M902C3-5A	Shoulder Screw
CHT4020-3-5AY	Shoulder Screw
HT4020-3-5AY	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-01-166-0740?

The FSCG of the NSN 5305-01-166-0740 is 5305

Does the NSN 5305-01-166-0740 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-166-0740 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 5305-01-166-0740 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-166-0740 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 5305-01-166-0740 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Mon, Nov 7, 1983