855621

View detailed technical data, stock status, and sourcing information for: 855621
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5315 Pins, Machine Keys and Nails

National Stock Number

5315-00-308-3568

Item Name Code

16749

Assigment Date

01/01/1963 (63 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.

square second end style, right-hand thread direction, 0.188 inches nominal thread length, 3a thread class, slotted first end style

Product Characteristics

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

First End Style: slotted
Second End Style: square
Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.188 inches nominal
Shank Length: 0.500 inches nominal
Shoulder Diameter: 0.375 inches nominal
Overall Length: 1.593 inches nominal
Internal Drive Style: slot
First End Slot Width: 0.048 inches nominal
First End Slot Depth: 0.062 inches nominal
Thread Quantity Per Inch: 24
Second End Relationship With First End: not identical
Nominal Thread Size: 0.190 inches
First End Location: grooved end
Surface Finish: 250.000 microinches overall
Material: steel comp 303 overall
Material Document And Classification: qq-s-764 fed spec single material response overall
Thread Series Designator: unc

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
855621	Headless Shoulder Pin

FAQs

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

What is the FSCG of the NSN 5315-00-308-3568?

The FSCG of the NSN 5315-00-308-3568 is 5315

Does NSN 5315-00-308-3568 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 5315-00-308-3568 contain precious materials?

Precious metal content is unknown

Does NSN 5315-00-308-3568 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 5315-00-308-3568 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963