4730-01-358-8976 NIPPLE,BOSS Index 4720-01-358-8978 HOSE ASSEMBLY,NONMETALLIC

National Stock Number:
4730-01-358-8977

Federal Supply Class:
4730

National Item Identification Number:
013588977

Description:
CROSS,TUBE TO BOSS

Detail:
A FITTING HAVING FOUR BRANCHES IN THE SAME PLANE WHOSE AXES FORM RIGHT ANGLES. ONE OR MORE OF THE CONNECTIONS HAVE MACHINE THREADS (STRAIGHT THREADS OTHER THAN PIPE OR HOSE SERIES) DESIGNED TO ACCOMMODATE A TUBE OR ARE UNTHREADED AND DESIGNED TO ACCOMMODATE A TUBE. THE REMAINING CONNECTIONS ARE BOSS CONNECTIONS. THE BOSS CONNECTIONS HAVE INTERNAL OR EXTERNAL MACHINE THREADS AND ARE DESIGNED TO FACILITATE A GASKET, PREFORMED PACKING, WASHER, AND THE LIKE TO FORM A SEAL AT THE BOSS. IT MAY HAVE SIDE INLET(S).


Manufacturer Information:
65356-0400178286SIKORSKY AIRCRAFT CORPORATION
65356-04001-10178286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
MATERIALSTEEL COMP 4340 OVERALL
SURFACE TREATMENTANODIZE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION TYPETHREADED EXTERNAL TUBE 1ST END
THREADED EXTERNAL TUBE 2ND END
THREADED EXTERNAL TUBE 3RD END
THREADED INTERNAL BOSS 4TH END
CONNECTION STYLEFLARED (TUBE) 1ST END
FLARED (TUBE) 2ND END
FLARED (TUBE) 3RD END
GASKET SEAL (BOSS) 4TH END
SEAT ANGLE37.0 DEGREES 1ST END
37.0 DEGREES 2ND END
37.0 DEGREES 3RD END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES 1ST END
0.500 INCHES 2ND END
0.500 INCHES 3RD END
0.500 INCHES 4TH END
THREAD SERIES DESIGNATORUNJF ALL ENDS
UNJF 1ST END
UNJF 2ND END
UNJF 3RD END
UNJF 4TH END
UNJF 1ST END BULKHEAD
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS
0.750 INCHES 1ST END
0.750 INCHES 2ND END
0.750 INCHES 3RD END
0.750 INCHES 4TH END
0.750 INCHES 1ST END BULKHEAD
THREAD CLASS3A 1ST END
3A 2ND END
3A 3RD END
3B 4TH END
3A 1ST END BULKHEAD
LEG LENGTH2.175 INCHES NOMINAL 1ST END
1.170 INCHES NOMINAL 2ND END
1.462 INCHES NOMINAL 3RD END
1.462 INCHES NOMINAL 4TH END
2.175 INCHES NOMINAL 1ST END BULKHEAD


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