5310-01-421-2023

Find complete technical information, availability, and procurement data for: 5310-01-421-2023
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-421-2023

Item Name Code

01857

Assigment Date

11/03/1995 (30 years ago)

An item designed to fit over a packing gland by mating with a surface of a second part which together will retain into a narrow groove or confined space the packing, preformed or o-ring, or an item designed to fit over a rod or shaft, to mate with a stuffing box to confine packing material. It may function as a static or dynamic seal retainer with the packing located on, around, or in the centerline direction of the rod or shaft axis. It may have holes or joints for mounting, be threaded or unthreaded. See also packing nut and packing nut, stuffing tube.

right-hand thread direction, 0.150 inches minimum and 0.163 inches maximum nut height, hexagon nut style, 2b thread class, 0.428 inches minimum and 0.438 inches maximum width across flats

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: hexagon
Nut Height: 0.150 inches minimum and 0.163 inches maximum
Width Across Flats: 0.428 inches minimum and 0.438 inches maximum
Thread Series: unc
Thread Quantity Per Inch: 20
Nominal Thread Size: 0.250 inches
Bearing Surface Type: chamfered or washer faced
Material: steel comp 303 overall
Material Document And Classification: astm a581 assn std single material response 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
A3210101-1	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-421-2023?

The FSCG of the NSN 5310-01-421-2023 is 5310

Does the NSN 5310-01-421-2023 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-421-2023 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 5310-01-421-2023 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-421-2023 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 5310-01-421-2023 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Fri, Nov 3, 1995