HT4078-3-12A

View detailed technical data, stock status, and sourcing information for: HT4078-3-12A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-221-7236

Item Name Code

22846

Assigment Date

12/03/1985 (40 years ago)

A straight, hollow product, welded or seamless, of round, square, or any other cross section and continuous periphery, which does not conform in cross sectional dimensions to recognized pipe standards. It is designed to convey fluids, gasses, and/or semisolids. It may be rolled into coils for ease in handling. For items designed to join a tube or tube fitting to another tube, pipe, or hose or fitting, see adapter (as modified); couplig (as modified); or nipple (as modified). Excludes: tube,bent (as modified); pipe,metallic; spacer sleeve; metal bar (hollow); and items with fitting, except end protectors.

3a thread class, right-hand thread direction, 0.390 inches minimum and 0.437 inches maximum thread length, 1.140 inches minimum and 1.187 inches maximum fastener length, flat countersunk head style

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: 0.390 inches minimum and 0.437 inches maximum
Fastener Length: 1.140 inches minimum and 1.187 inches maximum
Head Style: flat countersunk
Head Diameter: 0.4625 inches minimum and 0.4672 inches maximum
Shoulder Diameter: 0.2177 inches minimum and 0.2182 inches maximum first shoulder
Shoulder Length: 0.750 inches nominal first shoulder
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Countersink Angle: 100.0 degrees nominal
Shoulder Shape: round first shoulder
Special Features: furnished with one o-ring
Material: titanium alloy uns r56400 overall
Material Document And Classification: ams4967 assn std single material 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
3M1082V3-12A	Shoulder Screw
HT4078-3-12A	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-01-221-7236?

The FSCG of the NSN 5305-01-221-7236 is 5305

Does the NSN 5305-01-221-7236 have a Schedule B code assigned?

Yes, the Schedule B code is 8109900000

Does NSN 5305-01-221-7236 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 5305-01-221-7236 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-221-7236 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 5305-01-221-7236 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Tue, Dec 3, 1985