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National Stock Number:
5305-00-453-7517
Federal Supply Class:
5305
National Item Identification Number:
004537517
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).
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Manufacturer Information:
| 6851574P1 | 79272 | LOCKHEED MARTIN CORP | | 68C51574P1 | 07868 | DEPARTMENT OF VETERANS AFFAIRS FEDERAL CREDIT UNION | | 68C51574P1 | 15226 | GENERAL ELECTRIC CO RE-ENTRY AND ENVIRONMENTAL SYSTEMS PRODUCTS DIV | | 68C51574P1 | 23991 | LOCKHEED MARTIN CORPORATION | | 68C51574P1 | 79272 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| FASTENER LENGTH | 1.620 INCHES NOMINAL | | HEAD DIAMETER | 1.000 INCHES NOMINAL | | HEAD HEIGHT | 0.560 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 2 | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | POINT STYLE | FLAT | | SHOULDER DIAMETER | 0.312 INCHES NOMINAL FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER LENGTH | 1.180 INCHES NOMINAL FIRST SHOULDER | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 0.440 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 28 |
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