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National Stock Number:
5305-00-087-2992
Federal Supply Class:
5305
National Item Identification Number:
000872992
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:
| NAS1300-4T12 | 04939 | LOCKHEED MARTIN CORPORATION | | NAS1300-4T12 | 38579 | MARTIN A ROY | | NAS1300-4T12 | 38597 | LOCKHEED MARTIN CORPORATION | | NAS1300-4T12 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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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 | 0.781 INCHES MINIMUM | | FASTENER LENGTH | 0.719 INCHES MINIMUM AND | | 0.781 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL | | HEAD STYLE | THUMB NO. 3 | | HEAD HEIGHT | 0.605 INCHES MINIMUM AND | | 0.635 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.519 INCHES MINIMUM AND | | 0.549 INCHES MAXIMUM | | POINT STYLE | FLAT | | SPECIFICATION/STANDARD DATA | 80205-NAS1300 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
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