HT8171-6-4

View detailed technical data, stock status, and sourcing information for: HT8171-6-4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-211-9227

Item Name Code

29294

Assigment Date

05/09/1973 (53 years ago)

0.794 inches minimum and 0.841 inches maximum fastener length, right-hand thread direction, flat countersunk head style, 3a thread class, 0.534 inches minimum and 0.601 inches maximum thread 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: 0.534 inches minimum and 0.601 inches maximum
Fastener Length: 0.794 inches minimum and 0.841 inches maximum
Head Style: flat countersunk
Head Diameter: 0.240 inches minimum and 0.260 inches maximum
Grip Diameter: 0.3733 inches minimum and 0.3742 inches maximum
Shank Unthreaded Hole Diameter: 0.106 inches nominal first hole
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.375 inches
Grip Length: 0.240 inches minimum and 0.260 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 220000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Distance From Head Largest Bearing Surface To Shank Hole Center: 0.501 inches minimum and 0.533 inches maximum first hole
Material: steel overall
Material Document And Classification: sps-m-107 fscm 56878 mfr ref single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: nas 672 assn std 1st treatment response or mil-c-8837 ty 2 cl 2 mil spec 2nd 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
106706H6-4	Close Tolerance Screw
GB510BC6-4	Close Tolerance Screw
HT8171-6-4	Close Tolerance Screw
HT8171H6-4	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-00-211-9227?

The FSCG of the NSN 5305-00-211-9227 is 5305

Does the NSN 5305-00-211-9227 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-211-9227 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 5305-00-211-9227 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-211-9227 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 5305-00-211-9227 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Wed, May 9, 1973