5305-01-421-7072

Find complete technical information, availability, and procurement data for: 5305-01-421-7072
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-421-7072

Item Name Code

06657

Assigment Date

11/14/1995 (30 years ago)

A metallic or nonmetallic item of various peripheral shapes and a solid cross-section. It is designed to maintain a predetermined distance between two surfaces. It may have flat parallel bearing surfaces. Do not use if a more specific name applies. See also spacer, ring; spacer, plate; spacer, sleeve; spacer, stepped; shim and washer, flat.

right-hand thread direction, 1.108 inches minimum and 1.170 inches maximum thread length, 1.188 inches minimum and 1.250 inches maximum fastener length, flat countersunk head style, 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: 1.108 inches minimum and 1.170 inches maximum
Fastener Length: 1.188 inches minimum and 1.250 inches maximum
Head Style: flat countersunk
Head Diameter: 0.322 inches minimum and 0.385 inches maximum
Locking Feature: strip
Internal Drive Style: torque set
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: iron alloy 660
Locking Feature Material: plastic polyamide (nylon)
Screw Material Document And Classification: ams5737 assn std single material response
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
Bearing Surface Of Head Surface Finish: 32.0 microinches
Shank Surface Finish: 32.0 microinches
Thread Surface Finish: 32.0 microinches
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas1189 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
NAS1189E3T20L	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-421-7072?

The FSCG of the NSN 5305-01-421-7072 is 5305

Does the NSN 5305-01-421-7072 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-421-7072 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 5305-01-421-7072 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-421-7072 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 5305-01-421-7072 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Tue, Nov 14, 1995