HT271-3-4

View detailed technical data, stock status, and sourcing information for: HT271-3-4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-326-4969

Item Name Code

29294

Assigment Date

12/03/1973 (52 years ago)

flat countersunk undercut head style, 0.640 inches minimum and 0.687 inches maximum fastener length, 0.380 inches minimum and 0.447 inches maximum thread length, right-hand thread direction, 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: 0.380 inches minimum and 0.447 inches maximum
Fastener Length: 0.640 inches minimum and 0.687 inches maximum
Head Style: flat countersunk undercut
Head Diameter: 0.376 inches minimum and 0.381 inches maximum
Head Height: 0.043 inches minimum and 0.045 inches maximum
Grip Diameter: 0.1890 inches minimum and 0.1895 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.190 inches
Grip Length: 0.240 inches minimum and 0.260 inches maximum
Thread Quantity Per Inch: 32
Countersink Angle: 100.0 degrees minimum
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Material: titanium alloy uns r54520 overall
Material Document And Classification: nas 621,6al-4v 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
10125187	Close Tolerance Screw
110179-3-4	Close Tolerance Screw
BM33024V3-4	Close Tolerance Screw
HT271-3-4	Close Tolerance Screw
HT8137-3-4	Close Tolerance Screw
ST3M430V3-4D	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-00-326-4969?

The FSCG of the NSN 5305-00-326-4969 is 5305

Does the NSN 5305-00-326-4969 have a Schedule B code assigned?

Yes, the Schedule B code is 8109900000

Does NSN 5305-00-326-4969 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 5305-00-326-4969 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-326-4969 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 5305-00-326-4969 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Mon, Dec 3, 1973