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National Stock Number:
5340-00-953-8825
Federal Supply Class:
5340
National Item Identification Number:
009538825
Description:
FASTENER,FLARE LOCK
Detail:
A SHOULDERED HOLLOW SCREW AND THREADED SLEEVE ASSEMBLY, DESIGNED TO BE FASTENED IN PLACE BY TURNING THE SCREW, CAUSING ONE END OF THE SLEEVE TO FLARE OVER THE SHOULDER AND AGAINST THE MATERIAL THROUGH WHICH IT HAS BEEN INSERTED. ALSO, A COUNTERSUNK HEAD HOLLOW SCREW AND FLARED SLEEVE-NUT ASSEMBLY, DESIGNED TO MATE WITH A DIMPLED HOLE IN THE MATERIAL TO WHICH IT IS FASTENED. THE HOLLOW SCREWS MAY ALSO HAVE INTERNAL THREADS FOR ATTACHING SCREWS. SEE ALSO SHIELD, EXPANSION.
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Manufacturer Information:
| 1920-4-4 | 80539 | SPS TECHNOLOGIES, LLC | | BACF34D4B4 | 08903 | THE BOEING COMPANY | | PAF20-4-4 | 56878 | SPS TECHNOLOGIES, LLC | | PAF20-4-4 | 80539 | SPS TECHNOLOGIES, LLC | | BACF34D4B4 | 81205 | THE BOEING COMPANY | | C392-4-4 | 81755 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| FEATURES PROVIDED | CLOSED SLEEVE | | HEAD HEIGHT | 0.024 INCHES NOMINAL | | HEAD DIAMETER | 0.358 INCHES NOMINAL | | HEAD STYLE | FLAT TOP ELEVATOR | | HOLE SIZE FOR WHICH DESIGNED | 0.2495 INCHES MINIMUM AND 0.2993 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | SOCKET | | MATERIAL THICKNESS RANGE FOR WHICH DESIGNED | +0.240 TO 0.260 INCHES | | MOUNTING METHOD | SCREW | | NOMINAL THREAD SIZE | 0.138 INCHES | | SCREW MINIMUM LENGTH FOR WHICH DESIGNED | 0.611 INCHES | | STYLE DESIGNATOR | COUNTERBORED SLEEVE | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNC |
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