748312

View detailed technical data, stock status, and sourcing information for: 748312
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-004-5527

Item Name Code

06657

Assigment Date

06/10/1975 (51 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes:undercuts for thread relief). It is no. 10 (0.190 in.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, internal wrenching and thumbscrew. See also screw, externally relieved body.

0.552 inches minimum and 0.572 inches maximum fastener length, 3a thread class, 0.352 inches minimum and 0.466 inches maximum 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: 0.352 inches minimum and 0.466 inches maximum
Fastener Length: 0.552 inches minimum and 0.572 inches maximum
Head Style: flat countersunk
Head Diameter: 0.491 inches minimum and 0.507 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Countersink Angle: 98.0 degrees minimum and 100.0 degrees maximum
Screw Material: iron alloy 660
Screw Material Document And Classification: ams 5732 assn std single material response
Thread Series Designator: unjf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-942-8694	No Name Available	12/01/1976

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
748312	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-004-5527?

The FSCG of the NSN 5305-01-004-5527 is 5305

Does the NSN 5305-01-004-5527 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-004-5527 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 5305-01-004-5527 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-004-5527 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 5305-01-004-5527 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Tue, Jun 10, 1975