MS21955C
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for information only.
3. Dimensioning and tolerancing in accordance with ASME Y14.5M.
4. All machined surfaces shall be finished to 250 µin (6.35µm) Ra, unless otherwise specified.
Surface finish shall be in accordance with ASME 846.1.
5. Fittings shall be free of all burrs and slivers.
6. Unless otherwise specified tolerances for three point decimals ±.010 inch (0.25 mm.
7. 8 radius is the max envelope dimension for forging, flash, and other projections on A radius.
8. Dimensions C and D represent the max envelope which shall be large enough to meet final part dimensions.
FIGURE 2. Cluster fitting body contour and mounting end - Continued. REQUIREMENTS:
Dimensions and configurations: See figures 1 and 2.
Material: Aluminum alloy 7075-T73 in accordance with SAE-AMS-QQ-A-225/9. Aluminum alloy forging, 7075-T73 in accordance with SAE-AMS-QQ-A-367.
Finish: See procurement standard SAE-AS4875/1. Part or Identifying Number (PIN):
MS21955 W 4L
Size 4 low flow fitting
Material code "W" for al alloy 7075 (see table I).
Specification sheet number
PIN Example: MS21955W4L identifies a .250 inch low flow cluster fitting.
Supersession data: Aluminum alloys 2014 and 2024 has been replaced by aluminum alloy 7075, see table I for replacement PIN's.
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