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AIC4308-1

View detailed technical data, stock status, and sourcing information for: AIC4308-1

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AIC4308-1
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-472-2767
Item Name Code
29294
Assigment Date
09/11/1970 (55 years ago)

A washer or cone or disk shape with a centrally located hole, designed to accommodate a flat or oval head screw and provide additional bearing area on the material being fastened. It may or may not have a flush flange feature.

flat countersunk head style, right-hand thread direction, 0.512 inches minimum and 0.579 inches maximum thread length, 1.072 inches minimum and 1.119 inches maximum fastener length, 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
0.512 inches minimum and 0.579 inches maximum
Fastener Length
1.072 inches minimum and 1.119 inches maximum
Head Style
flat countersunk
Head Diameter
0.757 inches nominal
Grip Diameter
0.3733 inches minimum and 0.3742 inches maximum
Internal Drive Style
offset cruciform (torque set)
Nominal Thread Diameter
0.375 inches
Grip Length
0.540 inches minimum and 0.560 inches maximum
Thread Quantity Per Inch
24
Minimum Tensile Strength
220000 pounds per square inch
Hardness Rating
46.0 rockwell c minimum and 50.0 rockwell c maximum overall
Countersink Angle
99.0 degrees minimum and 101.0 degrees maximum
Material
steel comp h11 overall
Material Document And Classification
ams6485 assn std single material response overall
Surface Treatment
cadmium overall
Surface Treatment Document And Classification
nas 672 assn std single treatment response overall
Thread Series Designator
unjf

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
AIC4308-1 Close Tolerance Screw
C4308-1 Close Tolerance Screw
VAL42002 Close Tolerance Screw
VT1650-1 Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-00-472-2767?
The FSCG of the NSN 5305-00-472-2767 is 5305
Does the NSN 5305-00-472-2767 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-472-2767 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 5305-00-472-2767 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-472-2767 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 5305-00-472-2767 was assigned to the Federal Catalog?
It was assigned 55 years ago, on Fri, Sep 11, 1970

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