|
|
|
National Stock Number:
5305-01-217-4001
Federal Supply Class:
5305
National Item Identification Number:
012174001
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:
| 1339AS173-1 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER |
|
Techincal Specification:
| FASTENER LENGTH | 0.870 INCHES NOMINAL | | HEAD HEIGHT | 1.000 INCHES MINIMUM AND 1.240 INCHES MAXIMUM | | HEAD STYLE | THUMB NO. 3 | | MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP M1010 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | POINT STYLE | FLAT | | WIDTH BETWEEN FLATS | 0.880 INCHES MINIMUM AND 1.120 INCHES MAXIMUM | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.770 INCHES MINIMUM AND 0.870 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNC |
|
|