HT1664-20

View detailed technical data, stock status, and sourcing information for: HT1664-20
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5342 Weapon System Hardware

National Stock Number

5342-00-682-1878

Item Name Code

53589

Assigment Date

01/01/1963 (63 years ago)

1/4-28unf-2b all threaded portions thread size, 1.810 inches nominal flange width, 1.810 inches nominal flange length, 1.375 inches nominal distance between mounting hole centers, 0.170 inches nominal flange thickness

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Flange Thickness: 0.170 inches nominal
Thread Size: 1/4-28unf-2b all threaded portions
Distance Between Mounting Hole Centers: 1.375 inches nominal
Flange Length: 1.810 inches nominal
Flange Width: 1.810 inches nominal
Stud Length: 0.290 inches nominal all threaded stud
Shortest Distance Between Mounting Hole Centers: 1.375 inches nominal
Flange Mounting Hole Diameter: 0.201 inches nominal
Static Load Rating At Specified Deflection: 20 lb load at unspecified deflection
Load/Frequency Range: rated at 20 lb load for 25 to 37 cps
Height: 1.060 inches nominal
Material: aluminum overall
Surface Treatment: anodize overall
Style Designator: round spring compression four-hole flange

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5340-00-670-1223	No Name Available	07/15/1968
5342-00-956-4458	No Name Available	05/01/2004
5340-01-133-3740	No Name Available	04/01/1986

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
10056326	Weapon System Resilient Mount
11690142	Weapon System Resilient Mount
13211E6702	Weapon System Resilient Mount
402P267	Weapon System Resilient Mount
72-5045	Weapon System Resilient Mount
7900169-02	Weapon System Resilient Mount
9112003	Weapon System Resilient Mount
ES1716-1	Weapon System Resilient Mount
GM500A-20	Weapon System Resilient Mount
HT1-20	Weapon System Resilient Mount
HT1664-20	Weapon System Resilient Mount
HT1697-20	Weapon System Resilient Mount

FAQs

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

What is the FSCG of the NSN 5342-00-682-1878?

The FSCG of the NSN 5342-00-682-1878 is 5342

Does the NSN 5342-00-682-1878 have a Schedule B code assigned?

Yes, the Schedule B code is 8710000090

Does NSN 5342-00-682-1878 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 5342-00-682-1878 contain precious materials?

Item does not contain precious metal.

Does NSN 5342-00-682-1878 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 5342-00-682-1878 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963