5305-01-138-3278

Find complete technical information, availability, and procurement data for: 5305-01-138-3278
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-138-3278

Item Name Code

06657

Assigment Date

09/10/1982 (43 years ago)

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

0.283 inches minimum and 0.375 inches maximum thread length, oval countersunk head style, 3a thread class, 0.345 inches minimum and 0.375 inches maximum fastener length, 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: 0.283 inches minimum and 0.375 inches maximum
Fastener Length: 0.345 inches minimum and 0.375 inches maximum
Head Style: oval countersunk
Head Diameter: 0.249 inches minimum and 0.279 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Thread Series Designator: unc

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
OJ6-32X3/8	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-138-3278?

The FSCG of the NSN 5305-01-138-3278 is 5305

Does NSN 5305-01-138-3278 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 5305-01-138-3278 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-138-3278 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 5305-01-138-3278 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Fri, Sep 10, 1982