5340-01-391-2880

Find complete technical information, availability, and procurement data for: 5340-01-391-2880
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-391-2880

Item Name Code

40223

Assigment Date

06/08/1994 (32 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.

4-40 unc-2b thread size, 0.974 inches nominal width, 4 mounting hole quantity, 0.528 inches minimum and 0.534 inches maximum thickness, 0.974 inches nominal length

Product Characteristics

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

Width: 0.974 inches nominal
Thickness: 0.528 inches minimum and 0.534 inches maximum
Length: 0.974 inches nominal
Mounting Hole Quantity: 4
Thread Size: 4-40 unc-2b
Aperture Diameter: 0.750 inches nominal
Mounting Hole Type: threaded
Corner Radius: 0.120 inches nominal
Screw Thread Series Designator: unc
Raised Surface Diameter: 0.750 inches nominal
Raised Surface Height: 0.100 inches nominal
Aperture Shape: round
Special Features: mounting configuration: 0.720 in. min and 0.730 in. max c to c along both lg and w
Material: aluminum alloy 356.0
Material Document And Classification: qq-a-601, alloy 356 fed spec single material response
Surface Treatment: chromate
Shape: square
Surface Treatment Document And Classification: mil-c-5541, cl 1a mil spec single treatment response

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
619-2972-002	Mounting Plate

FAQs

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

What is the FSCG of the NSN 5340-01-391-2880?

The FSCG of the NSN 5340-01-391-2880 is 5340

Does NSN 5340-01-391-2880 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 5340-01-391-2880 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-391-2880 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5340-01-391-2880 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Wed, Jun 8, 1994