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Part Number

Part Number:
NSN:
NIIN:
Item Name:
COUPLING , BOSS

Definition:

A STRAIGHT ONE-PIECE FITTING 12 INCHES (304 MM) LONG OR UNDER HAVING THE SAME SIZE FITTING ON EACH END (STRAIGHT MACHINE THREADS OTHER THAN PIPE OR HOSE SERIES). IT MAY HAVE INTERNAL THREADS ON BOTH ENDS OR INTERNAL THREADS ON ONE END AND EXTERNAL THREADS ON THE OTHER DESIGNED TO FACILITATE A GASKET, PREFORMED PACKING, WASHER, OR THE LIKE, TO FORM A SEAL AT THE BOSS. IT IS DESIGNED TO JOIN TWO BOSSES OR BOSS FITTINGS. EXCLUDES ITEMS HAVING EXTERNAL THREADED CONNECTIONS ON BOTH ENDS.

CAGE Information

Code Company
76301 BOEING COMPANY THE DBA BOEING

Federal Supply Class

Title

HOSE, PIPE, TUBE, LUBRICATION, A

Inclusions:

INCLUDES ADAPTERS; BENDS; CAPS; CLAMPS; CONNECTORS; COUPLINGS; CROSSES; ELBOWS; EXPANSION JOINTS; FERRULES; FLANGES; LATERALS; LUBRICATION FITTINGS; MANIFOLDS; NIPPLES; NOZZLES; OUTLETS; PLUGS; REDUCERS; SWING AND SWIVEL JOINTS; TEES; TRAPS; UNIONS; WYES.

Exclusions:

EXCLUDES AIR CONDITIONING-HEATING FITTINGS (FSC 4520); BITUMINIZED FIBER AND CONCRETE FITTINGS (FSC 5630); CONDUIT BOXES AND FITTINGS (FSC 5975); DOWNSPOUT FITTINGS (FSC 5670); MEDICAL AND SURGICAL FITTINGS (FSC 6515); LABORATORY FITTINGS (FSC 6640); POST CAPS AND RAIL ENDS (FSC 5660); MACHINE THREAD BUSHINGS AND PLUGS (FSC 5365).

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CMLP THREAD QUANTITY PER INCH 24 1ST END
CQJX NOMINAL THREAD SIZE 0.437 INCHES 2ND END
CWFD NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 0.250 INCHES 1ST END
MATT MATERIAL STEEL CORROSION RESISTING OVERALL
AWLS CONNECTION TYPE THREADED INTERNAL TUBE 1ST END
CQRB SEAT ANGLE 37.0 DEGREES 1ST END
AHNC CONNECTION STYLE FLARED (TUBE) 2ND END
THSD THREAD SERIES DESIGNATOR UNJF 2ND END
AWLS CONNECTION TYPE THREADED EXTERNAL BOSS 2ND END
CQRB SEAT ANGLE 37.0 DEGREES 2ND END
THSD THREAD SERIES DESIGNATOR UNJS 1ST END
STYL STYLE DESIGNATOR RIGID, SHORT CENTER WRENCHING FACILITY
AHNC CONNECTION STYLE SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END 1ST END
AAJD THREAD CLASS 3B 1ST END
AAJD THREAD CLASS 3A 2ND END
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TMQY FURNISHED ITEMS AND QUANTITY 1 SWIVEL NUT
MEDA MEDIA FOR WHICH DESIGNED FUEL SINGLE RESPONSE
CQJX NOMINAL THREAD SIZE 0.437 INCHES 1ST END
CWFR NOMINAL OVERALL LENGTH 1.257 INCHES
SFTT SURFACE TREATMENT PASSIVATE OVERALL

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