5305-01-406-8668

Find complete technical information, availability, and procurement data for: 5305-01-406-8668
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-406-8668

Item Name Code

29294

Assigment Date

01/13/1995 (31 years ago)

A metal loop having either a v or u cross section or channelled segment(s). It may be attached to a flat band. It is designed to create a fluid tight joint and/or connect pipe, tubing, tank cover(s), duct(s) and the like, by mating with flanged or beaded ferrule(s), flared, or beaded ends. It may or may not have a sealing inner liner. A latch or latches of the quick coupling type, nut or bolt type, or threaded trunnion type is (are) used to lock and adjust the band. Excludes:coupling, clamp, pipe and ring, locking, metal drum cover.

3a thread class, 0.917 inches minimum and 0.947 inches maximum fastener length, 0.345 inches minimum and 0.395 inches maximum thread length, right-hand thread direction, 0.2485 inches minimum and 0.2495 inches maximum grip diameter

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
Thread Direction: right-hand
Thread Length: 0.345 inches minimum and 0.395 inches maximum
Fastener Length: 0.917 inches minimum and 0.947 inches maximum
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.552 inches minimum and 0.572 inches maximum
Thread Quantity Per Inch: 28
Hardness Rating: 46.0 rockwell c minimum and 49.0 rockwell c maximum overall
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Material: steel comp h11 overall
Surface Treatment: cadmium overall
Thread Series Designator: unjf
Specification/Standard Data: 81755-c7984-4-10r professional/industrial association specification

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
121557-4-A9PX	Close Tolerance Screw
C7984-4-9R	Close Tolerance Screw
H044-4-9R	Close Tolerance Screw
VT1693F4-9X	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-406-8668?

The FSCG of the NSN 5305-01-406-8668 is 5305

Does the NSN 5305-01-406-8668 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-406-8668 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 5305-01-406-8668 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-406-8668 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 5305-01-406-8668 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Fri, Jan 13, 1995