|
|
|
National Stock Number:
5305-01-516-3983
Federal Supply Class:
5305
National Item Identification Number:
015163983
Description:
THUMBSCREW
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use SCREW (as modified) or BOLT (as modified).
|
Manufacturer Information:
| 6747416 | 53711 | NAVAL SEA SYSTEMS COMMAND |
|
Techincal Specification:
| FASTENER LENGTH | 2.430 INCHES NOMINAL | | HEAD DIAMETER | 2.000 INCHES NOMINAL | | HEAD HEIGHT | 0.500 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | FED-STD-66 FED STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | POINT STYLE | FLAT | | POINT DIAMETER | 0.470 INCHES NOMINAL | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.562 INCHES | | SPECIAL FEATURES | THUMBSCREW IS EXTERNALLY RELIEVED ADJACENT TO THREADS; DIAMETER IS 0.406INCHES. THE EXTERNALLY RELIEVED LENGTH IS 0.335 INCHES. IMMEDIATELY ADJACENT TO THE EXTERNALLY RELIEVED SECTION IS A ROUND SHOULDER THAT IS 1.430 INCHES LONG AND 0.906 INCHES IN DIAMETER. THE SHOULDER BEGINS WITH A 30 DEGREE CHAMPHER THAT IS 0.430 INCHES LONG | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.625 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNF |
|
|