5305-01-293-5855, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-293-5855

Federal Supply Class:
5305

National Item Identification Number:
012935855

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.

Manufacturer Information:

174B6503PC1	04241	BECHTEL MARINE PROPULSION CORPORATION DBA KNOLLS ATOMIC POWER LABORATORY
174B6503PC1(CHROME)	04241	BECHTEL MARINE PROPULSION CORPORATION DBA KNOLLS ATOMIC POWER LABORATORY

Techincal Specification:

CRITICALITY CODE JUSTIFICATION	ZZZY
FASTENER LENGTH	0.820 INCHES MINIMUM AND 0.860 INCHES MAXIMUM
HEAD STYLE	DEE CHAMFER
MATERIAL DOCUMENT AND CLASSIFICATION	FF-S-86 TYPE VI FED STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
SPECIAL FEATURES	SELF LOCKING PER MIL-F-18240
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-23422 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CHROMATE OVERALL
THREAD CLASS	3A
THREAD LENGTH	0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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