5305-01-416-1840

Find complete technical information, availability, and procurement data for: 5305-01-416-1840
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-416-1840

Item Name Code

16282

Assigment Date

07/14/1995 (31 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.

0.262 inches minimum and 0.270 inches maximum head diameter, 3a thread class, 0.375 inches nominal fastener length, flat fillister head style, 0.159 inches minimum and 0.164 inches maximum head 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: 3a
Fastener Length: 0.375 inches nominal
Head Style: flat fillister
Head Diameter: 0.262 inches minimum and 0.270 inches maximum
Head Height: 0.159 inches minimum and 0.164 inches maximum
Locking Feature: patch locking feature
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.164 inches
Width Across Flats: 0.141 inches nominal
Thread Quantity Per Inch: 36
Part Name Assigned By Controlling Agency: navy special project
Material: plastic polyamide (nylon) locking feature
Material: steel overall
Material Document And Classification: mil-f-18240 mil spec single material response locking feature
Surface Treatment: zinc overall
Surface Treatment Document And Classification: qq-z-325,tyii,cl3 assn std single treatment response overall
Thread Series Designator: unf

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
3176207-C-048	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-416-1840?

The FSCG of the NSN 5305-01-416-1840 is 5305

Does the NSN 5305-01-416-1840 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-416-1840 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 5305-01-416-1840 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-416-1840 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 5305-01-416-1840 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Fri, Jul 14, 1995