4730-00-121-5955, NIPPLE,BOSS

National Stock Number:
4730-00-121-5955

Federal Supply Class:
4730

National Item Identification Number:
001215955

Description:
NIPPLE,BOSS

Detail:
A STRAIGHT, ONE-PIECE FITTING USED TO JOIN TWO BOSSES OR BOSS FITTINGS. BOTH ENDS ARE THE SAME SIZE AND HAVE EXTERNAL MACHINE THREADS (STRAIGNT THREADS OTHER THAN PIPE OR HOSE SERIES). IT IS DESIGNED TO FACILITATE A GASKET, PREFORMED PACKING, WASHER, OR THE LIKE TO FORM A SEAL AT THE BOSS. THE CENTER SECTION MAY BE SUITABLY SHAPED TO ACCOMMODATE A WRENCH.

Manufacturer Information:

MS21900-1	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MS21900-10	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

CONNECTION TYPE	THREADED EXTERNAL BOSS ALL ENDS
CONNECTION STYLE	EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLE	FLARED W/ GASKET SEAL (BOSS) FIRST END
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 1137 OR STEEL COMP 1141 OVERALL
NOMINAL OVERALL LENGTH	1.688 INCHES
NOMINAL THREAD SIZE	0.875 INCHES ALL ENDS
SPECIFICATION/STANDARD DATA	96906-MS21900 GOVERNMENT STANDARD
STYLE DESIGNATOR	FLARED AND FLARELESS W/ CENTER WRENCHING FACILITY
SURFACE TREATMENT	CADMIUM OVERALL
THREAD CLASS	3A ALL ENDS
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS

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