5305-01-258-8211

Find complete technical information, availability, and procurement data for: 5305-01-258-8211
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-258-8211

Item Name Code

29294

Assigment Date

07/08/1987 (39 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.

4.327 inches minimum and 4.374 inches maximum fastener length, 3a thread class, 0.469 inches nominal thread length, flat countersunk head style, right-hand thread direction

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: 0.469 inches nominal
Fastener Length: 4.327 inches minimum and 4.374 inches maximum
Head Style: flat countersunk
Head Diameter: 0.497 inches minimum and 0.507 inches maximum
Grip Diameter: 0.2483 inches minimum and 0.2492 inches maximum
Internal Drive Style: cross recess type ii
Nominal Thread Diameter: 0.2500 inches
Grip Length: 0.4437 inches nominal
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 100.0 degrees nominal
Material: steel comp 4140 or steel comp 4340 or steel comp 8740 overall
Material Document And Classification: mil-s-5626 mil spec 1st material response or mil-s-8844 mil spec 2nd material response or ams6414 assn std 2nd material response or mil-s-6049 mil spec 3rd material response overall
Surface Treatment: cadmium and chromate grip
Surface Treatment Document And Classification: qq-p-416 ty2 cl2 fed spec all treatment responses grip
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas334 professional/industrial association 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
NAS334CP4-25	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-258-8211?

The FSCG of the NSN 5305-01-258-8211 is 5305

Does the NSN 5305-01-258-8211 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-258-8211 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 5305-01-258-8211 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-258-8211 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 5305-01-258-8211 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Wed, Jul 8, 1987