5305-01-043-1879

Find complete technical information, availability, and procurement data for: 5305-01-043-1879
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-043-1879

Item Name Code

29294

Assigment Date

06/21/1977 (49 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.

flat countersunk head style, 3 thread class, right-hand thread direction, 0.908 inches minimum and 0.955 inches maximum fastener length, 0.211 inches minimum and 0.278 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: 3
Thread Direction: right-hand
Thread Length: 0.211 inches minimum and 0.278 inches maximum
Fastener Length: 0.908 inches minimum and 0.955 inches maximum
Head Style: flat countersunk
Head Diameter: 0.325 inches minimum and 0.385 inches maximum
Grip Diameter: 0.1885 inches minimum and 0.1894 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.190 inches
Grip Length: 0.677 inches minimum and 0.697 inches maximum
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 220000 pounds per square inch
Hardness Rating: 46.0 rockwell c minimum and 50.0 rockwell c maximum overall
Countersink Angle: 100.0 degrees nominal
Surface Finish: 32.0 microinches grip
Part Name Assigned By Controlling Agency: navy special project
Material: steel comp h11 overall
Material Document And Classification: ams 6487 assn std single material response overall
Surface Treatment: cadmium or cadmium and chromate overall
Surface Treatment Document And Classification: nas 672 assn std 1st treatment response or mil-c-8837 ty 2 cl 2 mil spec 2nd treatment response overall
Thread Series Designator: unjf
Specification/Standard Data: 26512-gb510n manufacturers standard

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
BM19045-3-11A	Close Tolerance Screw
GB510N3A11	Close Tolerance Screw
HT326-3A11	Close Tolerance Screw
HT8181F3-11	Close Tolerance Screw
SFH22D3A11	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-043-1879?

The FSCG of the NSN 5305-01-043-1879 is 5305

Does the NSN 5305-01-043-1879 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-043-1879 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 5305-01-043-1879 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-043-1879 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 5305-01-043-1879 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Tue, Jun 21, 1977