5305-01-337-3311

Find complete technical information, availability, and procurement data for: 5305-01-337-3311
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-337-3311

Item Name Code

29294

Assigment Date

04/12/1991 (35 years ago)

A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.

3a thread class, right-hand thread direction, 1.578 inches minimum and 1.608 inches maximum fastener length, flat countersunk head style, 0.531 inches nominal 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: 0.531 inches nominal
Fastener Length: 1.578 inches minimum and 1.608 inches maximum
Head Style: flat countersunk
Head Diameter: 0.575 inches minimum and 0.635 inches maximum
Grip Diameter: 0.3115 inches minimum and 0.3120 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.312 inches
Grip Length: 1.052 inches minimum and 1.072 inches maximum
Thread Quantity Per Inch: 24
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Surface Finish: 32.0 microinches bearing surface of head32.0 microinches grip
Special Features: tapped hole in head 0.138-32 unjc-3b threads. distance from top of head to injection port 0.780 nom. inch. injection port 0.120 nom. in. lg; 0.060 nom. in. wide
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:

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HT4075D5-17-78	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-337-3311?

The FSCG of the NSN 5305-01-337-3311 is 5305

Does the NSN 5305-01-337-3311 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-337-3311 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 5305-01-337-3311 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-337-3311 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 5305-01-337-3311 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Fri, Apr 12, 1991