5305-01-184-3777

Find complete technical information, availability, and procurement data for: 5305-01-184-3777
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-184-3777

Item Name Code

22846

Assigment Date

07/18/1984 (42 years ago)

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (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 not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

right-hand thread direction, 3a thread class, 0.735 inches nominal thread length, flat countersunk head style, 1.385 inches minimum and 1.405 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: 0.735 inches nominal
Fastener Length: 1.385 inches minimum and 1.405 inches maximum
Head Style: flat countersunk
Head Diameter: 0.927 inches minimum and 1.019 inches maximum
Shoulder Diameter: 0.5297 inches minimum and 0.5307 inches maximum first shoulder
Shoulder Length: 0.645 inches minimum and 0.665 inches maximum first shoulder
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 20
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Shoulder Shape: round first shoulder
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
BACB30LU8-21Y	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-01-184-3777?

The FSCG of the NSN 5305-01-184-3777 is 5305

Does the NSN 5305-01-184-3777 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-184-3777 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 5305-01-184-3777 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-184-3777 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 5305-01-184-3777 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Wed, Jul 18, 1984