718980-2

View detailed technical data, stock status, and sourcing information for: 718980-2
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-00-890-5191

Item Name Code

24328

Assigment Date

04/08/1968 (58 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.

35.0 countersink angle in deg, 0.2080 inches minimum and 0.2230 inches maximum bore diameter, 0.3300 inches minimum and 0.3370 inches maximum counterbore diameter, 0.1800 inches nominal first step length, 0.4945 inches minimum and 0.4975 inches maximum first step diameter

Product Characteristics

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

Countersink Angle In Deg: 35.0
Counterbore Diameter: 0.3300 inches minimum and 0.3370 inches maximum
First Step Diameter: 0.4945 inches minimum and 0.4975 inches maximum
First Step Length: 0.1800 inches nominal
Bore Diameter: 0.2080 inches minimum and 0.2230 inches maximum
Material Hardness Rating: 30.0 rockwell c minimum and 38.0 rockwell c maximum
Design Type: solid
Countersink Diameter: 0.4100 inches nominal
Counterbore Length: 0.1300 inches minimum and 0.1400 inches maximum
Special Features: matl-steel ams 5612;not casehardened
Material: steel

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
718980-2	Helical Compression Spring Seat

FAQs

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

What is the FSCG of the NSN 5340-00-890-5191?

The FSCG of the NSN 5340-00-890-5191 is 5340

Does NSN 5340-00-890-5191 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 5340-00-890-5191 contain precious materials?

Precious metal content is unknown

Does NSN 5340-00-890-5191 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 5340-00-890-5191 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Mon, Apr 8, 1968