4730-00-289-5974, CROSS,BOSS

National Stock Number:
4730-00-289-5974

Federal Supply Class:
4730

National Item Identification Number:
002895974

Description:
CROSS,BOSS

Detail:
A FITTING HAVING FOUR BRANCHES IN THE SAME PLANE WHOSE AXES FORM RIGHT ANGLES. THE BOSS CONNECTIONS FOR ITEMS SUCH AS TANKS, HOUSINGS, VALVE FITTINGS, AND THE LIKE, HAVE INTERNAL OR EXTERNAL MACHINE THREADS (STRAIGHT THREADS OTHER THAN PIPE OR HOSE SERIES) AND ARE DESIGNED TO FACILITATE A GASKET, PREFORMED PACKING, WASHER, OR THE LIKE TO FORM A SEAL AT THE BOSS. IT MAY HAVE SIDE INLET(S). EXCLUDES CROSS, TUBE.

Manufacturer Information:

AN937D20	88044	AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AS4875	0U583	SAE INTERNATIONAL
AS4875	81343	SOCIETY OF AUTOMOTIVE ENGINEERS INC
MIL-F-5509	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

CONNECTION STYLE	GASKET SEAL (BOSS) ALL ENDS
CONNECTION TYPE	THREADED INTERNAL BOSS ALL ENDS
LEG LENGTH	1.734 INCHES NOMINAL ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-225/4 T6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-367 T6 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-225/6 T6 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-225/6 T851 FED SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIAL	ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024 OVERALL
NOMINAL THREAD SIZE	1.625 INCHES ALL ENDS
SPECIFICATION/STANDARD DATA	88044-AN937 GOVERNMENT STANDARD AND 81343-AS4875 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
SURFACE TREATMENT	ANODIZE OVERALL
THREAD CLASS	3B ALL ENDS
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT (UNJ) ALL ENDS
THREAD QUANTITY PER INCH	12 ALL ENDS

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