HT4UA-12

View detailed technical data, stock status, and sourcing information for: HT4UA-12
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-969-4826

Item Name Code

06657

Assigment Date

06/15/1966 (60 years ago)

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

right-hand thread direction, flat countersunk head style, 0.463 inches minimum and 0.480 inches maximum thread length, 3a thread class, 1.203 inches minimum and 1.250 inches maximum fastener length

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: 0.463 inches minimum and 0.480 inches maximum
Fastener Length: 1.203 inches minimum and 1.250 inches maximum
Head Style: flat countersunk
Head Diameter: 0.502 inches minimum and 0.507 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.250 inches
Features Provided: o ring
Thread Quantity Per Inch: 28
Countersink Angle: 100.0 degrees nominal
Screw Material: steel
Screw Material Document And Classification: 3-48 fscm 76301 mfr ref single material response
Screw Surface Treatment: cadmium
Screw Surface Treatment Document And Classification: 3-48 fscm 76301 mfr ref single treatment response
Thread Series Designator: unf

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
3M46-4-12	Machine Screw
54266-4-12	Machine Screw
HT408A4-12	Machine Screw
HT4UA-12	Machine Screw
HT4UA12	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-969-4826?

The FSCG of the NSN 5305-00-969-4826 is 5305

Does the NSN 5305-00-969-4826 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-969-4826 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 5305-00-969-4826 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-969-4826 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 5305-00-969-4826 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Wed, Jun 15, 1966