4730-01-666-4534

Find complete technical information, availability, and procurement data for: 4730-01-666-4534
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4730 Hose, Pipe, Tube, Lubrication and Railing Fittings

National Stock Number

4730-01-666-4534

Item Name Code

17645

Assigment Date

09/07/2017 (8 years ago)

A tube fitting with external threads other than pipe or hose series having an internal or external seating surface. The seating surface is designed to form a seal when mated with other tube fittings to retain fluids under pressure during equipment operation. For items without a specific seating surface which are designed to utilize a gasket or packing under the head for forming a seal, see plug, machine thread.

2b thread class, 0.413 inches nominal nut height, tube fitting locknut nut style, m109a7 howitzer end item identification, right-hand thread direction

Product Characteristics

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

Thread Class: 2b
Thread Direction: right-hand
Nut Style: tube fitting locknut
Nut Height: 0.413 inches nominal
End Item Identification: m109a7 howitzer
Width Across Flats: 1.60 inches nominal
Thread Series: un
Thread Quantity Per Inch: 12
Nominal Thread Size: 1.4375 inches
Part Name Assigned By Controlling Agency: lock nut,bulkhead
Material: steel overall
Surface Treatment: cadmium overall

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
16-16 520118C	Tube Fitting Locknut
J1453-3 16-16 520118C	Tube Fitting Locknut
SAE J1453-3 16-16 520118C	Tube Fitting Locknut

FAQs

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

What is the FSCG of the NSN 4730-01-666-4534?

The FSCG of the NSN 4730-01-666-4534 is 4730

Does NSN 4730-01-666-4534 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 4730-01-666-4534 contain precious materials?

Item does not contain precious metal.

Does NSN 4730-01-666-4534 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 4730-01-666-4534 was assigned to the Federal Catalog?

It was assigned 8 years ago, on Thu, Sep 7, 2017