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CB1S4503-1ALT5PC620

View detailed technical data, stock status, and sourcing information for: CB1S4503-1ALT5PC620

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CB1S4503-1ALT5PC620
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-257-0904
Item Name Code
06672
Assigment Date
01/01/1961 (65 years ago)

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

right-hand thread direction, square head style, 0.969 inches minimum and 1.000 inches maximum fastener length, 0.270 inches minimum and 0.293 inches maximum head height, 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
Fastener Length
0.969 inches minimum and 1.000 inches maximum
Head Style
square
Head Height
0.270 inches minimum and 0.293 inches maximum
Width Between Flats
0.362 inches minimum and 0.375 inches maximum
Point Style
oval
Internal Drive Style
w/o internal drive
Nominal Thread Diameter
0.375 inches
Features Provided
casehardened
Thread Quantity Per Inch
16
Hardness Rating
45.0 rockwell c minimum and 53.0 rockwell c maximum overall
Material
steel comp 1010 or steel comp 1011 or steel comp 1013 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1022 or steel comp 1212 or steel comp 1213 or steel comp 1137 overall
Material Document And Classification
66 fed std all material responses overall
Surface Treatment
cadmium and chromate overall
Surface Treatment Document And Classification
qq-p-416 ty 2 cl 3 fed spec all treatment responses overall
Thread Series Designator
unc
Nondefinitive Spec/Std Data
1 type and 3 style

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5305-00-282-3503 No Name Available 12/01/1991

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FAQs

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

What is the FSCG of the NSN 5305-00-257-0904?
The FSCG of the NSN 5305-00-257-0904 is 5305
Does the NSN 5305-00-257-0904 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-257-0904 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 5305-00-257-0904 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-00-257-0904 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 5305-00-257-0904 was assigned to the Federal Catalog?
It was assigned 65 years ago, on Sun, Jan 1, 1961

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