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National Stock Number:
5305-01-525-3527
Federal Supply Class:
5305
National Item Identification Number:
015253527
Description:
SCREW,PANEL FASTENER
Detail:
A headed, threaded fastening device with special square threads, which is designed to be attached to a panel by means of a retaining washer. The screw fastener is used in conjunction with a speed nut to facilitate fastening two items.
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Manufacturer Information:
| 7408867 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 2A | | THREAD LENGTH | 0.295 INCHES NOMINAL | | FASTENER LENGTH | 0.645 INCHES NOMINAL | | MATERIAL | IRON OVERALL | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | HEAD DIAMETER | 0.574 INCHES MINIMUM AND | | 0.576 INCHES MAXIMUM | | HEAD HEIGHT | 0.350 INCHES NOMINAL | | COUNTERSINK ANGLE | 29.3 DEGREES MINIMUM AND | | 30.8 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL |
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