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5305-00-050-9221

Find complete technical information, availability, and procurement data for: 5305-00-050-9221

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5305-00-050-9221
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-050-9221
Item Name Code
16282
Assigment Date
01/01/1961 (65 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.

3a thread class, right-hand thread direction, 0.661 inches minimum and 0.802 inches maximum thread length, flat countersunk head style, 0.970 inches minimum and 1.000 inches maximum fastener length

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
0.661 inches minimum and 0.802 inches maximum
Fastener Length
0.970 inches minimum and 1.000 inches maximum
Head Style
flat countersunk
Head Diameter
0.600 inches minimum and 0.656 inches maximum
Internal Drive Style
hexagon
Nominal Thread Diameter
0.312 inches
Width Across Flats
0.188 inches nominal
Thread Quantity Per Inch
18
Hardness Rating
36.0 rockwell c minimum and 45.0 rockwell c maximum overall
Countersink Angle
80.0 degrees minimum and 84.0 degrees maximum
Material
steel overall
Material Document And Classification
66 fed std single 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
unc
Nondefinitive Spec/Std Data
4 type

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5305-00-619-1372 No Name Available 09/01/2023
5305-00-994-2380 No Name Available 12/14/1970

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
MS24667-41 Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-050-9221?
The FSCG of the NSN 5305-00-050-9221 is 5305
Does the NSN 5305-00-050-9221 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-050-9221 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 5305-00-050-9221 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-050-9221 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 5305-00-050-9221 was assigned to the Federal Catalog?
It was assigned 65 years ago, on Sun, Jan 1, 1961

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