BACS12HW5AU14

View detailed technical data, stock status, and sourcing information for: BACS12HW5AU14
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-521-5144

Item Name Code

29294

Assigment Date

06/24/2004 (22 years ago)

A clamp designed to hold an item in position, alignment or in close proximity by rigidly gripping the projecting rim, ridge, collar or edge of the item. A lockwasher, bolt, screw or the like may be a part of the item of supply.

right-hand thread direction, 1.235 inches minimum and 1.265 inches maximum fastener length, 0.375 inches minimum thread length, flat chamfer 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: 0.375 inches minimum
Fastener Length: 1.235 inches minimum and 1.265 inches maximum
Head Style: flat chamfer
Head Diameter: 0.594 inches minimum and 0.615 inches maximum
Head Height: 0.203 inches minimum and 0.218 inches maximum
Spline Minor Diameter: 0.157 inches minimum and 0.160 inches maximum
Spline Major Diameter: 0.219 inches minimum and 0.222 inches maximum
Locking Feature: prevailing torque all metal design overall
Grip Diameter: 0.3115 inches minimum and 0.3120 inches maximum
Internal Drive Style: torx
End Item Identification: mv-22 aircraft
Nominal Thread Diameter: 0.3125 inches
Grip Length: 0.865 inches minimum and 0.885 inches maximum
Thread Quantity Per Inch: 24
Criticality Code Justification: agav
Part Name Assigned By Controlling Agency: screw, pan head, close tolerance,short thread, six lobe
Special Features: "per asme b46.1. "d" diameter underside of head, root of threads and thread flanks 32 microinches ra. all other surfaces, 125 microinches ra."
Material: iron alloy 660 overall
Material Document And Classification: ams 5731 a286 assn std single material response or ams 5732 a286 assn std single material response or ams 5737 a286 assn std single material response or ams 5853 a268 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: ams-qq-p-35, type ii or viii assn std single treatment response overall
Thread Series Designator: unjf

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
BACS12HW5AU14	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-521-5144?

The FSCG of the NSN 5305-01-521-5144 is 5305

Does the NSN 5305-01-521-5144 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-521-5144 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 5305-01-521-5144 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-521-5144 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 5305-01-521-5144 was assigned to the Federal Catalog?

It was assigned 22 years ago, on Thu, Jun 24, 2004