5305-01-481-7550

Find complete technical information, availability, and procurement data for: 5305-01-481-7550
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-481-7550

Item Name Code

06657

Assigment Date

01/24/2001 (25 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.

3a thread class, 0.500 inches maximum fastener length, 0.500 inches maximum thread length, right-hand thread direction, flat countersunk head style

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: 0.500 inches maximum
Fastener Length: 0.500 inches maximum
Head Style: flat countersunk
Locking Feature: strip
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.1640 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 1950 pounds per square inch
Screw Material: steel
Locking Feature Material: plastic polychlorotrifluoroethylene
Screw Material Document And Classification: nas498 national spec 1st material response
Locking Feature Material Document And Classification: mil-f-18240,250degreesfarhenheitmax/ams3650,coloroptional,390degreesfarhenheitmax mfr ref 1st material response
Screw Surface Treatment: cadmium
Screw Surface Treatment Document And Classification: qq-p-416,type2,class2 fed spec 1st treatment response
Thread Series Designator: unjc
Specification/Standard Data: 80205nas1189 professional/industrial association standard

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
NAS1189-08P8L	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-481-7550?

The FSCG of the NSN 5305-01-481-7550 is 5305

Does the NSN 5305-01-481-7550 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-481-7550 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 5305-01-481-7550 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-481-7550 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 5305-01-481-7550 was assigned to the Federal Catalog?

It was assigned 25 years ago, on Wed, Jan 24, 2001