HT4027-7-15

View detailed technical data, stock status, and sourcing information for: HT4027-7-15
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-547-1638

Item Name Code

29294

Assigment Date

01/11/2007 (19 years ago)

A mechanical device driven by electricity to produce the necessary motion to operate a windshield wiper

1.546 inches nominal fastener length, 3a thread class, right-hand thread direction, flat countersunk undercut head style, 0.656 inches nominal 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: 0.656 inches nominal
Fastener Length: 1.546 inches nominal
Head Style: flat countersunk undercut
Head Diameter: 0.612 inches minimum and 0.672 inches maximum
Head Height: 0.101 inches nominal
Grip Diameter: 0.4365 inches minimum and 0.4370 inches maximum
Internal Drive Style: high-torque
End Item Identification: aircraft, hornet f/a-18 (e/f)
Nominal Thread Diameter: 0.4375 inches
Grip Length: 0.938 inches nominal
Thread Quantity Per Inch: 20
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned By Controlling Agency: dwg name: screw - close tolerance, 100 degree countersunk, reduced head, hi-torque, non-magnetic cres (125 ksi fsu)
Material: nickel alloy 718 overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec 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
HT4027-7-15	Close Tolerance Screw
ST3M557-7-15	Close Tolerance Screw
WC4027-7-15	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-547-1638?

The FSCG of the NSN 5305-01-547-1638 is 5305

Does the NSN 5305-01-547-1638 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-547-1638 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 5305-01-547-1638 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-547-1638 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 5305-01-547-1638 was assigned to the Federal Catalog?

It was assigned 19 years ago, on Thu, Jan 11, 2007