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National Stock Number:
5305-01-294-6344
Federal Supply Class:
5305
National Item Identification Number:
012946344
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:
| 129303-1 | 8B865 | J & S PRECISION PRODUCTS CO INC | | 129303-1 | 94271 | LOCKHEED MARTIN CORP | | LL-HQ5-9137 | 14153 | DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.452 INCHES MINIMUM AND | | 0.466 INCHES MAXIMUM | | FASTENER LENGTH | 1.090 INCHES NOMINAL | | MATERIAL | STEEL COMP 303 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | HEAD STYLE | KNURLED NO. 6 | | HEAD DIAMETER | 0.175 INCHES MINIMUM AND | | 0.177 INCHES MAXIMUM | | HEAD HEIGHT | 0.591 INCHES NOMINAL | | POINT STYLE | CONE | | SPECIAL FEATURES | ROLLED THREAD | | SPECIAL TEST FEATURES | SPECIAL QUALITY CONTROL TESTING | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS | | CRITICALITY CODE JUSTIFICATION | ZZZY | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 94271 | | DESIGN CONTROL REFERENCE | 129303-1 |
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