4730-01-185-8055

Find complete technical information, availability, and procurement data for: 4730-01-185-8055
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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

4730-01-185-8055

Item Name Code

17645

Assigment Date

08/04/1984 (42 years ago)

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes:washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

0.493 inches minimum and 0.500 inches maximum width across flats, 3b thread class, right-hand thread direction, tube fitting locknut nut style, 0.374 inches minimum and 0.378 inches maximum nut height

Product Characteristics

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

Thread Class: 3b
Thread Direction: right-hand
Nut Style: tube fitting locknut
Nut Height: 0.374 inches minimum and 0.378 inches maximum
Width Across Flats: 0.493 inches minimum and 0.500 inches maximum
Thread Series: unjef
Packing Recess Diameter: 0.393 inches minimum and 0.405 inches maximum
Packing Recess Depth: 0.030 inches minimum and 0.040 inches maximum
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.375 inches
Material: steel corrosion resisting 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
AC044088	Tube Fitting Locknut

FAQs

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

What is the FSCG of the NSN 4730-01-185-8055?

The FSCG of the NSN 4730-01-185-8055 is 4730

Does the NSN 4730-01-185-8055 have a Schedule B code assigned?

Yes, the Schedule B code is 7314140000

Does NSN 4730-01-185-8055 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 4730-01-185-8055 contain precious materials?

Item does not contain precious metal.

Does NSN 4730-01-185-8055 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 4730-01-185-8055 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Sat, Aug 4, 1984