DETAIL SPECIFICATION SHEET
UNION – FLARED TUBE
INCH-POUND · AN815 REV 10 · 10 March 2015 · Superseding AN815 REV 9, 4 August 1983 · AMSC N/A · FSC 4730
FIGURE 1. Union, flared tube dimensions and configuration.
FIGURE 1. Union, flared tube dimensions and configuration – Continued.
| Dash number (see note 5) |
Tubing OD (mm) |
Thread T SAE-AS8879 Class 3A |
E (mm) |
M (mm) |
|---|---|---|---|---|
| -2 | .125 (3.18) | .3125-24UNJF-3A | .563 (14.30) | 1.219 (30.96) |
| -3 | .188 (4.78) | .3750-24UNJF-3A | .625 (15.88) | |
| -4 | .250 (6.35) | .4375-20UNJF-3A | .688 (17.48) | 1.250 (31.75) |
| -5 | .313 (7.95) | .5000-20UNJF-3A | .750 (19.05) | |
| -6 | .375 (9.53) | .5625-18UNJF-3A | .813 (20.65) | 1.375 (34.93) |
| -8 | .500 (12.70) | .7500-16UNJF-3A | 1.000 (25.40) | 1.563 (39.70) |
| -10 | .625 (15.88) | .8750-14UNJF-3A | 1.125 (28.58) | 1.828 (46.43) |
| -12 | .750 (19.05) | 1.0625-12UNJF-3A | 1.375 (34.93) | 2.109 (53.57) |
| -16 | 1.000 (25.40) | 1.3125-12UNJF-3A | 1.625 (41.28) | 2.188 (55.58) |
| -20 | 1.250 (31.75) | 1.6250-12UNJF-3A | 1.875 (47.63) | 2.281 (57.94) |
| -24 | 1.500 (38.10) | 1.8750-12UNJF-3A | 2.125 (53.98) | 2.531 (64.29) |
| -28 | 1.750 (44.45) | 2.2500-12UNJ-3A | 2.500 (63.50) | 2.813 (71.45) |
| -32 | 2.000 (50.80) | 2.5000-12UNJ-3A | 2.750 (69.85) | 3.063 (77.80) |
| -40 | 2.500 (63.50) | 3.0000-12UNJ-3A | 3.250 (82.55) | 2.875 (73.03) |
| -48 | 3.000 (76.20) | 3.5000-12UNJ-3A | 3.750 (95.25) | 3.063 (77.80) |
NOTES:
- Dimensions are in inches.
- Metric equivalents are given for information only.
- Tolerances unless other wise noted are ± .016 inches (0.41 mm).
- Break all sharp edges and remove all hanging burrs and slivers.
- Size designators are SAE convention (16’s of an inch).
REQUIREMENTS
Dimensions and configurations see figure 1.
Materials and finishes: Unless otherwise specified materials and finishes shall be in accordance with SAE-AS4843; see table I for material/finish code.
TABLE I. Material and finish code letters.
| Material and finish code | Material | Protective chemical finish |
|---|---|---|
| Blank | Steel alloy 4130 | Cadmium plated in accordance with SAE-AMS-QQ-P-416 2/ |
| D 1/ | Aluminum alloy bar in accordance with SAE-AMS-QQ-A-225/6 alloy 2024-T6, or aluminum alloy bar in accordance with SAE-AMS-QQ-A-225/6 or SAE-AMS4339 alloy 2024-T851. | Anodize in accordance with SAE-AMS2472 or MIL-A-8625, type II, class 2, dye blue, duplex seal in accordance with procurement specification. |
| DV 1/ | Aluminum alloy bar in accordance with SAE-AMS-QQ-A-225/6 alloy 2024-T6, or aluminum alloy bar in accordance with SAE-AMS-QQ-A-225/6 or SAE-AMS4339 alloy 2024-T851. | High purity aluminum in accordance with MIL-DTL-83488, class 3, type II with maximum coating thickness of .0005 inch. Glass bead peen pressure shall be 25 psi (1.72 bar) maximum. |
| J | Type 304 corrosion resistant steel forging or bar in accordance with SAE-AMS-QQ-S-763 or SAE-AMS5639. | Passivate in accordance with SAE-AMS2700, method 1, type 6 or 7. |
| K | Type 316 corrosion resistant steel forging or bar in accordance with SAE-AMS-QQ-S-763 or SAE-AMS5648. | Passivate in accordance with SAE-AMS2700, method 1, type 6 or 7. |
| R | Type 321 corrosion resistant steel forging or bar in accordance with SAE-AMS-QQ-S-763 or SAE-AMS5645. | Passivate in accordance with SAE-AMS2700, method 1, type 6 or 7. |
| T 2/ | Titanium 6Al-4V in accordance with SAE-AMS4928 or SAE-AMS4965 | Anodize in accordance with SAE-AMS2488, type 2. |
| W | Aluminum alloy bar in accordance with SAE-AMS-QQ-A-225/9 or SAE-AMS4124, alloy 7075-T7351 or 7075-T73. | Anodize in accordance with SAE-AMS2472 or MIL-A-8625, type II, class 2; dye brown similar to color 10080 in accordance with FED-STD-595; duplex seal in accordance with procurement specification. |
| WV | Aluminum alloy 7075-T73 or aluminum alloy bar in accordance with SAE-AMS-QQ-A-225/9 or SAE-AMS4124, alloy 7075-T7351 or 7075-T73. | High purity aluminum in accordance with MIL-DTL-83488, class 3, type II with maximum coating thickness of .0005 inch. Glass bead peen pressure shall be 25 psi (1.72 bar) maximum. |
| Z | Steel alloy 4130 | Zinc plate in accordance with ASTM B633; type II or III, Fe/Zn 5, or ASTM B695, type II, class 5. 3/ |
1/ Aluminum code D and DV is inactive for new design, use code W or WV.
2/ Titanium and cadmium shall not be used in potable water or oxygen systems.
3/ Zinc platings shall meet the 96 hour salt spray test in accordance with ASTM B117.
Parts for use on oxygen systems shall be identified in the PIN as code “A” and shall be furnished cleaned, packaged, and labeled in accordance with SAE-AS611 to a process approved by the user.
Users are cautioned that the union should be evaluated to their cleanliness requirements before installing in any equipment. Only qualified technical personnel with knowledge for the selection of cleaning methods for oxygen rich environments should make the determination as to what cleanliness level is acceptable for their application.
PART IDENTIFICATION NUMBER (PIN) SPECIFICATION
PIN example:
PIN example: AN815-16KA
GENERAL GUIDANCE
Marking: Part shall be permanently marked with the AN PIN, and include the manufacturer’s CAGE, name, or trademark.
Guidance on use of alternative parts with less hazardous or non-hazardous materials. This specification provides for a number of alternative plating materials via the PIN. Users should select the PIN with the least hazardous material that meets the form, fit, and function requirements of their application.
Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.
Referenced documents shall be of the issue in effect on date of invitations for bid.
Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue, due to the extent of the changes.
SUPERSESSION DATA
Supersession data: See table I.
TABLE I. AN815 Supersession data. 1/ 2/
| Inactive AN PIN | Replacement AN PIN | Inactive AN PIN | Replacement AN PIN | Cancelled AN PIN | Replacement AN PIN |
|---|---|---|---|---|---|
| AN815-2D | AN815-2W | AN815-2DV | AN815-2WV | AN815-2S | AN815-2R |
| AN815-3D | AN815-3W | AN815-3DV | AN815-3WV | AN815-3S | AN815-3R |
| AN815-4D | AN815-4W | AN815-4DV | AN815-4WV | AN815-4S | AN815-4R |
| AN815-5D | AN815-5W | AN815-5DV | AN815-5WV | AN815-5S | AN815-5R |
| AN815-6D | AN815-6W | AN815-6DV | AN815-6WV | AN815-6S | AN815-6R |
| AN815-8D | AN815-8W | AN815-8DV | AN815-8WV | AN815-8S | AN815-8R |
| AN815-10D | AN815-10W | AN815-10DV | AN815-10WV | AN815-10S | AN815-10R |
| AN815-12D | AN815-12W | AN815-12DV | AN815-12WV | AN815-12S | AN815-12R |
| AN815-16D | AN815-16W | AN815-16DV | AN815-16WV | AN815-16S | AN815-16R |
| AN815-20D | AN815-20W | AN815-20DV | AN815-20WV | AN815-20S | AN815-20R |
| AN815-24D | AN815-24W | AN815-24DV | AN815-24WV | AN815-24S | AN815-24R |
| AN815-28D | AN815-28W | AN815-28DV | AN815-28WV | AN815-28S | AN815-28R |
| AN815-32D | AN815-32W | AN815-32DV | AN815-32WV | AN815-32S | AN815-32R |
| AN815-40D | AN815-40W | AN815-40DV | AN815-40WV | AN815-40S | AN815-40R |
| AN815-48D | AN815-48W | AN815-48DV | AN815-48WV | AN815-48S | AN815-48R |
1/ Due to stress corrosion cracking aluminum alloys 2014 and 2024, “D” designator has been replaced by aluminum alloy 7075 “W” designator.
2/ Metal cracking due to high temperatures CRES alloy 347 “S” designator has been replaced by CRES alloy 321 “R” designator.