FED. SUP CLASS
4730
MILITARY STANDARD — MS 24389 REV F
TEE, TUBE, INTERNAL THREAD ON RUN, PRECISION TYPE
FIGURE 1. TEE, TUBE, INTERNAL THREAD ON RUN (PRECISION TYPE) — TECHNICAL SCHEMATIC & CALLOUTS
ENGINEERING REQUIREMENTS & SPECIFICATION NOTES
(a) THIS SURFACE SHALL BE FREE FROM LONGITUDINAL AND SPIRAL TOOL MARKS. ANNULAR
TOOL
MARKS SHALL NOT EXCEED 32 MICROINCHES AA (SEE ANSI B46.1).
MATERIAL: STEEL; ALUMINUM ALLOY; CORROSION RESISTANT STEEL
(CRES); TITANIUM ALLOY; BARS, SHAPES OR FORGINGS (SEE PROCUREMENT SPECIFICATION).
FINISH: SEE PROCUREMENT SPECIFICATION.
DIMENSIONS IN INCHES: UNLESS OTHERWISE SPECIFIED, TOLERANCE:
FRACTIONS ±1/64.
PART NUMBER IDENTIFICATION RULES:
• NO CODE LETTER IN PART NUMBER FOR STEEL.
• ADD D IN PLACE OF DASH FOR ALUMINUM ALLOY (EXCEPT 7075-T73).
• ADD J IN PLACE OF DASH FOR CRES, TYPE 304.
• ADD K IN PLACE OF DASH FOR CRES, TYPE 316.
• ADD S IN PLACE OF DASH FOR CRES, TYPE 347.
• ADD T IN PLACE OF DASH FOR TITANIUM ALLOY.
• ADD W IN PLACE OF DASH FOR 7075-T73 ALUMINUM ALLOY.
WARNING: TITANIUM IS NOT RECOMMENDED FOR USE IN OXYGEN SYSTEMS.
EXAMPLE OF PART NUMBERS:
MS24389-8—
TEE, 1/2 TUBING, STEEL.
MS24389D8—
TEE, 1/2 TUBING, ALUMINUM ALLOY (EXCEPT 7075-T73).
MS24389J8—
TEE, 1/2 TUBING, CRES, TYPE 304.
MS24389K8—
TEE, 1/2 TUBING, CRES, TYPE 316.
MS24389S8—
TEE, 1/2 TUBING, CRES, TYPE 347.
MS24389T8—
TEE, 1/2 TUBING, TITANIUM ALLOY.
FMS24389W8—
TEE, 1/2
TUBING, 7075-T73 ALUMINUM ALLOY.
BREAK ALL SHARP EDGES AND REMOVE ALL HANGING BURRS AND SLIVERS.
IN ADDITION TO THE SAMPLING REQUIREMENTS OF THE PROCUREMENT SPECIFICATION, THE SURFACE OF THE CONE
ENDS ON 100% OF THE TEES 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.
F DENOTES CHANGES
TABLE I. PRECISION DIMENSIONS & DASH NUMBERS
| DASH NO. |
TUBING OD |
THREAD T (REF) |
J +3/64 −0 |
K +3/64 −0 |
Q +3/64 −0 |
R +3/64 −0 |
U RAD |
V | W MIN |
X MIN |
Y +3/64 −0 |
Z DIA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| -2 | 1/8 | 5/16-24UNJF-3A | 23/32 | 5/8 | 29/32 | 1-15/32 | 1/16 | 1/2 | 15/32 | 5/16 | 29/32 | 9/16 |
| -3 | 3/16 | 3/8-24UNJF-3A | 13/16 | 11/16 | 31/32 | 1- 1/2 | 3/32 | 9/16 | 1/2 | 31/32 | 5/8 | |
| -4 | 1/4 | 7/16-20UNJF-3A | 29/32 | 3/4 | 1- 3/16 | 1- 3/4 | 3/4 | 13/16 | 7/16 | 1- 3/16 | 3/4 | |
| -5 | 5/16 | 1/2-20UNJF-3A | 15/16 | 3/4 | ||||||||
| -6 | 3/8 | 9/16-18UNJF-3A | 1- 1/32 | 13/16 | 1- 1/4 | 2 | 1/8 | 7/8 | 25/32 | — | 1- 9/32 | 7/8 |
| -8 | 1/2 | 3/4-16UNJF-3A | 1- 1/4 | 1 | 1- 7/16 | 2- 5/32 | 1-1/16 | 29/32 | 1/2 | 1-15/32 | 1-1/16 | |
| -10 | 5/8 | 7/8-14UNJF-3A | 1-15/32 | 1- 5/32 | 1- 5/8 | 2- 3/8 | 1- 3/4 | 1-3/16 | ||||
| -12 | 3/4 | 1-1/16-12UNJ-3A | 1- 3/4 | 1-11/32 | 1-13/16 | 2- 5/8 | 1-5/16 | 1- 3/32 | 5/8 | 1- 7/8 | 1-7/16 | |
| -16 | 1 | 1-5/16-12UNJ-3A | 2- 1/16 | 1-17/32 | 2- 1/16 | 2-27/32 | 1-5/8 | 1- 5/16 | 3/4 | 2- 3/32 | 1-11/16 | |
| -20 | 1-1/4 | 1-5/8-12UNJ-3A | 2- 5/16 | 1-23/32 | 2- 1/4 | 3- 1/32 | 1-7/8 | 1- 1/2 | 7/8 | 2- 1/4 | 2 |
NOTE: BOSS IN ACCORDANCE WITH MS33649 FOR APPLICABLE TUBE SIZE, EXCEPT TAP DRILL DEPTH
"J" AND "Z" DIAMETER WHICH SHALL CONFORM TO THE VALUES LISTED IN TABLE ON SHEET 2.
DOCUMENT CONTROL, APPROVAL & REVISION HISTORY
AUTHORITY
APPROVAL & REVIEW ACTIVITIES
Standardization Authority: 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.
Preparing Activity (P.A.):
AIR FORCE — 99
Review Activities:
ARMY — ME, AV | NAVY — AS | DSC
—
CS
User Activities:
All DoD Departments and Agencies
Federal Supply Class (FSC):
4730 (Hose, Pipe, Tube, Lubrication, and Fitting Equipment)
REVISION LOG
OFFICIAL REVISION RECORD
INITIAL APPROVAL: 14 FEB 1967
ACTIVE REVISION: REV F (16 APR 1982)
| REV | DATE | DESCRIPTION & STATUS |
|---|---|---|
| A | 6 MAR 1958 | REVISED |
| B | 30 DEC 1959 | REVISED |
| C | 10 FEB 1967 | REVISED |
| D | 16 JUN 1978 | REVISED |
| E | 22 MAR 1979 | REVISED |
| F | 16 APR 1982 | CURRENT ACTIVE REVISION — DENOTES CHANGES (SEE PAGES 1 & 2) |