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5305-01-021-3747

Find complete technical information, availability, and procurement data for: 5305-01-021-3747

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5305-01-021-3747
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-021-3747
Item Name Code
16282
Assigment Date
05/15/1976 (50 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

0.219 inches minimum and 0.250 inches maximum fastener length, flat chamfer head style, 0.183 inches minimum and 0.250 inches maximum thread length, right-hand thread direction, 3a thread class

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
0.183 inches minimum and 0.250 inches maximum
Fastener Length
0.219 inches minimum and 0.250 inches maximum
Head Style
flat chamfer
Head Diameter
0.136 inches minimum and 0.140 inches maximum
Head Height
0.044 inches minimum and 0.053 inches maximum
Locking Feature
pellet threads
Internal Drive Style
cross recess type 1
Nominal Thread Diameter
0.086 inches
Thread Quantity Per Inch
56
Minimum Tensile Strength
160000 pounds per square inch
Hardness Rating
36.0 rockwell c minimum and 40.0 rockwell c maximum overall
Surface Finish
32.0 microinches bearing surface of head
Surface Finish
32.0 microinches threads
Material
steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 overall
Material Document And Classification
mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response overall
Surface Treatment
cadmium and chromate overall
Surface Treatment Document And Classification
qq-p-416,ty 2,cl 3 fed spec single treatment response overall
Thread Series Designator
unjc
Specification/Standard Data
80205-nas1191 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
NAS1191-02P4N Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-021-3747?
The FSCG of the NSN 5305-01-021-3747 is 5305
Does the NSN 5305-01-021-3747 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-021-3747 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 5305-01-021-3747 contain precious materials?
Precious metal content is unknown
Does NSN 5305-01-021-3747 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 5305-01-021-3747 was assigned to the Federal Catalog?
It was assigned 50 years ago, on Sat, May 15, 1976

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