5305-01-478-2840

Find complete technical information, availability, and procurement data for: 5305-01-478-2840
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-478-2840

Item Name Code

29294

Assigment Date

09/05/2000 (25 years ago)

An item usually metallic, threaded or unthreaded, used for securing to or positioning into a mating part. It is designed to be used in a globe, relief, regulator valve and the like as a means of controlling the flow of liquids or gases in a given system. One end may have an integral disk or be designed to accommodate a metallic or nonmetallic disk. The other end is designed for a handwheel, lever, spring, diaphragm and the like for nonpowered operation or to accommodate a gear, solenoid, air motor and the like for powered operation. The handwheel and/or disk may be furnished with the item. Excludes:stem, faucet; and stem, needle valve.

flat countersunk head style, 0.415 inches minimum and 0.435 inches maximum thread length, 1.727 inches minimum and 1.747 inches maximum fastener length, right-hand thread direction, 3a thread class

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: 0.415 inches minimum and 0.435 inches maximum
Fastener Length: 1.727 inches minimum and 1.747 inches maximum
Head Style: flat countersunk
Head Diameter: 0.385 inches minimum and 0.394 inches maximum
Head Height: 0.060 inches maximum
Spline Major Diameter: 0.219 inches minimum and 0.222 inches maximum
Grip Diameter: 0.2490 inches minimum and 0.2495 inches maximum
Internal Drive Style: torx
End Item Identification: a/f-18-dcn
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.240 inches minimum and 0.260 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 4230 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Material: titanium alloy uns r56400 overall
Material Document And Classification: nas4004 national spec single material 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:

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11845-V4-21A	Close Tolerance Screw
3M1170-V4-21A	Close Tolerance Screw
3M1170V4-21A	Close Tolerance Screw
TX1027V4-21A	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-478-2840?

The FSCG of the NSN 5305-01-478-2840 is 5305

Does the NSN 5305-01-478-2840 have a Schedule B code assigned?

Yes, the Schedule B code is 8109900000

Does NSN 5305-01-478-2840 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 5305-01-478-2840 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-478-2840 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 5305-01-478-2840 was assigned to the Federal Catalog?

It was assigned 25 years ago, on Tue, Sep 5, 2000