5305-01-421-7538

Find complete technical information, availability, and procurement data for: 5305-01-421-7538
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-421-7538

Item Name Code

29294

Assigment Date

11/15/1995 (30 years ago)

1.388 inches minimum and 1.418 inches maximum fastener length, flat countersunk head style, right-hand thread direction, 0.403 inches nominal thread length, 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: 0.403 inches nominal
Fastener Length: 1.388 inches minimum and 1.418 inches maximum
Head Style: flat countersunk
Head Diameter: 0.464 inches minimum and 0.506 inches maximum
Grip Diameter: 0.2490 inches minimum and 0.2495 inches maximum
Shank Unthreaded Hole Diameter: 0.076 inches minimum and 0.086 inches maximum first hole
Internal Drive Style: torque-set ribbed
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.990 inches minimum and 1.010 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Distance From Head Largest Bearing Surface To Shank Hole Center: 1.287 inches nominal first hole
Material: iron alloy 660 overall
Material Document And Classification: ams 5731 assn std single material response or ams 5732 assn std single material response or ams 5737 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
Specification/Standard Data: 80205-nas1580 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
NAS1580C4R16D	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-421-7538?

The FSCG of the NSN 5305-01-421-7538 is 5305

Does the NSN 5305-01-421-7538 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-421-7538 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 5305-01-421-7538 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-421-7538 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 5305-01-421-7538 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Wed, Nov 15, 1995