5305-01-197-3292, THUMBSCREW

5306-01-197-3293 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-197-3292

Federal Supply Class:
5305

National Item Identification Number:
011973292

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:

04M003-01	24587	RAYTHEON CO ESD LONG ISLAND DIV
SSL-250	01226	HUTCHINSON AEROSPACE & INDUSTRY, INC.
SSL-250	D9182	ZF INDUSTRIEANTRIEBE WITTEN GMBH

Techincal Specification:

HEAD DIAMETER	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
HEAD STYLE	KNURLED NO. 4
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
POINT LENGTH	0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
POINT STYLE	CHAMFER DOG
POINT DIAMETER	0.123 INCHES MINIMUM AND 0.124 INCHES MAXIMUM
SPECIAL FEATURES	DISTANCE FROM TOP OF HEAD TO BEGINNING OF THREADED PORTION IS 0.303 MIN. AND 0.323 MAX. IN.
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD DIRECTION	RIGHT-HAND
THREAD CLASS	2A
THREAD LENGTH	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNC
THREAD QUANTITY PER INCH	20

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