scope:

This Military Standard is approved for use by HQ AFLC CASO/LODS, Federal Center, Battle Creek, MI 49016, Department of the Air Force, and is available for use by all Departments and agencies of the Department of Defense.

(a) THE TWO DASH NUMBERS IN THE PART NUMBER ARE CODES FOR THE TWO EQUIVALENT TUBE SIZES, EXPRESSED IN SIXTEENTHS. FOR EXAMPLE: MS24398-10-6 REFERS TO A STEEL FITTING WITH AN INTERNALLY THREADED END FOR ⅝ TUBE AND AN EXTERNALLY THREADED END FOR ⅜ OD TUBE.

MATERIAL: STEEL ALUMINUM ALLOY; BARS. CORROSION RESISTANT STEEL (CRES), TITANIUM ALLOY; BARS, SHAPES, OR FORGINGS. SEE PROCUREMENT SPECIFICATION.

FINISH: PROCUREMENT SPECIFICATION.

NO CODE LETTER IN PART NUMBER FOR STEEL. ADD D IN PLACE OF FIRST DASH FOR ALUMINUM ALLOY (EXCEPT 7075-T73). ADD J IN PLACE OF FIRST DASH FOR CRES, TYPE 304. ADD K IN PLACE OF FIRST DASH FOR CRES, TYPE 316. ADD S IN PLACE OF FIRST DASH FOR CRES, TYPE 347. ADD T IN PLACE OF FIRST DASH FOR TITANIUM ALLOY. ADD W IN PLACE OF FIRST DASH FOR 7075-T73 ALUMINUM ALLOY. TITANIUM IS NOT RECOMMENDED FOR USE IN OXYGEN SYSTEMS. EXAMPLE OF PART NUMBERS: MS24398-8-6 - ADAPTER, ½ TUBING FOR INTERNAL THREADS AND ⅜ TUBING FOR EXTERNAL THREADS, STEEL. MS24398D8-6 - ADAPTER, ½ TUBING FOR INTERNAL THREADS AND ⅜ TUBING FOR EXTERNAL THREADS, ALUMINUM ALLOY (EXCEPT 7075-T73). MS24398J8-6 - ADAPTER, ½ TUBING FOR INTERNAL THREADS AND ⅜ TUBING FOR EXTERNAL THREADS, CRES, TYPE 304. MS24398K8-6 - ADAPTER, ½ TUBING FOR INTERNAL THREADS AND ⅜ TUBING FOR EXTERNAL THREADS, CRES, TYPE 316. MS24398S8-6 - ADAPTER, ½ TUBING FOR INTERNAL THREADS AND ⅜ TUBING FOR EXTERNAL THREADS, CRES, TYPE 347. MS24398T8-6 - ADAPTER, ½ TUBING FOR INTERNAL THREADS AND ⅜ TUBING FOR EXTERNAL THREADS, TITANIUM ALLOY. MS24398W8-6 - ADAPTER, ½ TUBING FOR INTERNAL THREADS AND ⅜ TUBING FOR EXTERNAL THREADS, 7075-T73 ALUMINUM ALLOY.

BREAK ALL SHARP EDGES AND REMOVE ALL HANGING BURRS AND SLIVERS. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCE: FRACTIONS ±1/64.

IN ADDITION TO THE SAMPLING REQUIREMENTS OF THE PROCUREMENT SPECIFICATION, THE SURFACE OF THE CONE ENDS ON 100% OF THE ADAPTERS OF A LOT SHALL BE INSPECTED.

FOR DESIGN FEATURE PURPOSES, THIS STANDARD TAKES PRECEDENCE OVER PROCUREMENT DOCUMENTS REFERENCED HEREIN.

REFERENCED DOCUMENTS SHALL BE OF THE ISSUE IN EFFECT ON DATE OF INVITATIONS FOR BID.