DETAIL SPECIFICATION SHEET
ADAPTER, STRAIGHT, FLANGE TO TUBE
INCH-POUND · MS20760D · 12 February 2013 · Superseding MS20760C, 16 June 1978 · AMSC N/A · FSC 4730
FIGURE 1. Adapter straight flange to tube dimensions and configurations.
| Inches | mm |
|---|---|
| .005 | 0.13 |
| .015 | 0.38 |
| .125 | 3.18 |
| Inches | mm |
|---|---|
| .005 | 0.13 |
| .015 | 0.38 |
| .125 | 3.18 |
FIGURE 1. Adapter straight flange to tube dimensions and configurations – Continued.
| Size code number | Tubing OD | Thread T (ref) |
A dia. ±.003 (0.08) inch (mm) |
B dia. inch (mm) |
|---|---|---|---|---|
| 8 | .500 (12.70) | .7500-16UNJF-3A | .391 (9.93) | .660 (16.76) |
| 10 | .625 (15.88) | .8750-14UNJF-3A | .484 (12.29) | .773 (19.63) |
| 12 | .750 (19.05) | 1.0625-12UNJ-3A | .600 (15.24) | .891 (22.63) |
| 12-16 | ||||
| 16 | 1.000 (2.54) | 1.3125-12UNJ-3A | .844 (21.44) | 1.156 (29.36) |
| 20 | 1.250 (13.75) | 1.6250-12UNJ-3A | 1.078 (27.38) | 1.438 (36.53) |
| 20-24 | ||||
| 24 | 1.500 (38.10) | 1.8750-12UNJ-3A | 1.312 (33.32) | 1.688 (42.88) |
| 32 | 2.000 (50.80) | 2.500-12UNJ-3A | 1.781 (45.24) | 2.250 (57.15) |
| 40 | 2.500 (63.50) | 3.000-12UNJ-3A | 2.281 (57.94) | 2.812 (71.42) |
| 48 | 3.000 (76.20) | 3.5000-12UNJ-3A | 2.781 (70.64) | 3.344 (84.94) |
| Size code number | C dia. +.000 -.005 (0.13) inch (mm) |
D inch (mm) |
E inch (mm) |
F ± .005 (0.13) inch (mm) |
G ±.005 (0.13) inch (mm) |
|
|---|---|---|---|---|---|---|
| 8 | .875 (22.23) | 1.207 (30.66) | 1.390 (35.31) | ± .016 (0.41) | .250 (6.35) | .950 (24.13) |
| 10 | 1.000 (25.40) | 1.308 (33.22) | 1.468 (37.29) | 1.038 (26.37) | ||
| 12 | 1.250 (31.75) | 1.406 (35.71) | 1.594 (40.49) | 1.156 (29.36) | ||
| 12-16 | 1.500 (38.10) | 1.750 (44.45) | 1.312 (33.32) | |||
| 16 | 1.500 (38.10) | |||||
| 20 | 1.844 (46.84) | 1.625 (41.28) | 2.188 (55.58) | ± .020 (0.51) | 1.656 (42.06) | |
| 20-24 | 2.125 (53.98) | 2.375 (60.33) | .312 (7.92) | 1.812 (46.02) | ||
| 24 | 1.750 (44.45) | |||||
| 32 | 2.750 (69.85) | 2.125 (53.98) | 3.000 (76.20) | 2.375 (60.33) | ||
| 40 | 3.281 (83.34) | 2.000 (50.80) | 4.000 (101.60) | — | ||
| 48 | 3.781 (96.04) | 2.125 (53.98) | 4.500 (114.30) | — | ||
| Size code number | H dia. +.010 (0.25) -.000 inch (mm) |
J rad. inch (mm) |
K dia. inch (mm) |
L Dia. ±.005 (0.13) inch (mm) |
|---|---|---|---|---|
| 8 | .205 (5.21) | .219 (5.56) | 1.782 (45.26) | 1.344 (34.14) |
| 10 | 1.906 (48.41) | 1.468 (37.29) | ||
| 12 | 2.094 (53.19) | 1.635 (41.53) | ||
| 12-16 | 2.312 (58.72) | 1.855 (47.12) | ||
| 16 | ||||
| 20 | .266 (6.76) | .266 (6.76) | 2.875 (73.03) | 2.342 (59.49) |
| 20-24 | .281 (7.14) | 3.094 (78.59) | 2.562 (65.07) | |
| 24 | ||||
| 32 | .328 (8.33) | .312 (7.92) | 3.953 (100.41) | 3.359 (85.32) |
| 40 | .375 (9.53) | 4.500 (114.30) | 3.812 (96.82) | |
| 48 | .625 (15.88) | 5.000 (127.00) | 4.312 (109.52) |
| Size code number | N dia. inch (mm) |
P +.015 (0.38) -.000 inch (mm) |
|---|---|---|
| 8 | .451 (11.46) | .394 (10.01) |
| 10 | .544 (13.82) | .407 (10.34) |
| 12 | .669 (16.99) | .417 (10.59) |
| 12-16 | ||
| 16 | .904 (22.96) | .464 (11.79) |
| 20 | 1.138 (28.91) | .480 (12.19) |
| 20-24 | ||
| 24 | 1.372 (34.85) | |
| 32 | 1.841 (46.76) | .605 (15.37) |
| 40 | 2.341 (59.46) | .704 (17.88) |
| 48 | 2.841 (72.16) | .751 (19.08) |
NOTES:
- Dimensions are in inches.
- Metric equivalents are given for information only.
- Unless otherwise specified tolerances are ±.005 inch (0.13 mm), angles ±.5°.
- Break sharp edges .and remove all hanging burrs and slivers
- Annular tool marks up to 63 µ-in (1.6 µm) Ra max will be allowed, machined surfaces shall be finished to 100µin (2.54 µm) Ra, unless otherwise specified on the figures. Surface finish shall be in accordance with ASME B46.1.
- Reduction by forging draft angle of 7° maximum is permissible.
- Not to be used unless approved by the procuring activity.
REQUIREMENTS
Dimensions and configuration shall be in accordance with figure 1.
For design features purposes, this standard takes precedence over documents referenced herein.
Referenced documents shall be of the issue in effect on date of invitation for bid.
Porosity test: finished castings shall not leak when subjected to 100-psi (0.7 MPa) internal air pressure and submerged in water for 3 minutes minimum.
This part is designed for use in fuel and oil systems with maximum operating pressures in accordance with table I.
TABLE I. Maximum operating pressure.
| Size code number | Material | PSI | MPa |
|---|---|---|---|
| 8 thru 16 | Aluminum alloy | 1500 | 10.3 |
| 24 thru 28 | Aluminum alloy | 500 | 3.4 |
| 32 thru 48 | Aluminum alloy | 500 | 3.4 |
Maximum operating temperature 275° F (135°C).
Materials and finishes shall be in accordance with table II. All platings shall be capable of meeting a minimum of 96 hours salt spray test in accordance with ASTM B117. The fittings shall show no evidence of corrosion after 96 hours of salt spray. Fluid passages, other openings, and internal threads shall not be subject to the plating thickness requirement and may have bare areas provided they are protected with a light film of oil.
TABLE II. Material and finish code letters.
| Code letter | Material | Finish |
|---|---|---|
| – | Steel 1137 or 1141 in accordance with ASTM A108 | Cadmium plated in accordance with SAE-AS4875. |
| D | Aluminum alloy 2014-T4 in accordance with SAE-AMS-QQ-A-225/6 or aluminum alloy casting in accordance with ASTM B108/B108M | Anodized anodize in accordance with MIL-A-8625, type 2, dye light blue |
| Aluminum alloy 2024 or 2024 forging and bar stock in accordance with SAE-AS4875 | ||
| DA | Aluminum alloy 2014-T4 in accordance with SAE-AMS-QQ-A-225/6 or aluminum alloy casting in accordance with ASTM B108/108M | Chemical conversion coating in accordance with, MIL-DTL-5541, type II, class 3 |
| Aluminum alloy 2024 or 2024 forging and bar stock in accordance with SAE-AS4875 | ||
| F | Steel 1137 or 1141 in accordance with ASTM A108 | Zinc plating in accordance with ASTM B633; type VI, Fe/Zn 5. 2/ |
| H | Steel 1137 or 1141 in accordance with ASTM A108 | Aluminum-nickel in accordance with ASTM F1136/F1136M, grade 3, NC. |
| R | Corrosion resistant steel (CRES) alloy 321 in accordance with SAE-AS4875 | Passivate in accordance with SAE-AS4875 |
| W | Aluminum alloy 7075-T73 or T7352 in accordance with SAE-AS4875 | Anodize in accordance with MIL-A-8625, type 2, dye brown |
| WC | Aluminum alloy 7075-T73 or T7352 in accordance with SAE-AS4875 | Chemical conversion coating in accordance with, MIL-DTL-5541, type II, class 3 |
| T 1/ | Titanium in accordance with SAE-AS4875 | Anodized in accordance with SAE-AS4875 |
| Z | Steel 1137 or 1141 in accordance with ASTM A108 | Zinc plating in accordance with ASTM B633; type II or III, Fe/Zn 5, or ASTM B695, type II, class 5. |
| ZN | Steel 1137 or 1141 in accordance with ASTM A108 | Zinc plating in accordance with ASTM B633; type II or III, Fe/Zn 5, or ASTM B695, type II, class 5 with NAVAIR TCP in accordance with MIL-DTL-81706, type II, class 1A. |
1/ Titanium shall not be used in oxygen systems.
2/ Hexavalent chromium free
The connector flange to hose shall not exceed the weight limits specified in table III.
TABLE III. Weight limits. 1/
| Size code number | Weight max lbs, (gr) |
||
|---|---|---|---|
| AL alloy | Steel/CRES | TI alloy | |
| 8 | — | — | — |
| 10 | — | — | — |
| 12 | .09 (41) | .25 (113) | .15 (68) |
| 12-16 | .10 (45) | .28 (127) | .17 (77) |
| 16 | .12 (54) | .35 (159) | .20 (91) |
| 20 | .16 (73) | .53 (240) | .26 (118) |
| 20-24 | .23 (104) | .64 (290) | .38 (172) |
| 24 | .25 (113) | 1.28 (581) | .41 (186) |
| 32 | .45 (204) | 1.82 (826) | .74 (336) |
| 40 (a) | .65 (295) | 2.32 (1052) | 1.07 (485) |
| 48 (a) | .83 (376) | 2.43 (1102) | 1.37 (621) |
1/ Metric equivalents given for information only.
PART IDENTIFICATION NUMBER (PIN) SPECIFICATION
The PIN consists of prefix “MS” the specification sheet number, and a dash, a letter for material/finish and size code. Unassigned PIN’s shall not be used.
PIN example: MS20760-D8 indicates a flange to hose adapter .500 inch (12.70 mm) flange to a .750 inch (19.05 mm) thread, aluminum alloy 2014-T4 anodized light blue.
GENERAL GUIDANCE
Cadmium is not recommended. To the users of this document, it is recommended that the use of carbon steel material with cadmium plating be used only when other materials and finishes specified in this document cannot meet performance requirements.
Marking: Part shall be permanently marked with the MS PIN, and include the manufacturers CAGE, name, or trademark.
Referenced documents shall be of the issue in effect on date of invitation for bid.
Changes from previous issues. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes.