MS9198D
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for information only.
3. Tolerances linear dimensions ±.010 inch (0.25 mm) angular dimensions ±5°.
4. Surface texture unless otherwise specified shall be 125µ inches (3.17µm) except hex, reference
ASME 846.1.
5. Diameters A and F shall be concentric to thread PD within .004 inch (0.010 mm) FIM. Diameter C
and hexagon E shall be concentric to thread PD within .010 inch (0.25 mm) FIM.
6. 8reak Sharp edges .003 - .015 inch (0.08 - 0.38 mm) unless otherwise specified. Fillets .005 - .020 inch (0.13 - 0.51 mm) RAD or chamfer.
7. Multiple marking permissible provided positive identification is shown. Parts shall be marked before threading.
8. For design features purposes, this standard takes precedence over documents referenced herein.
FIGURE 1. Nut, tube coupling - Continued.
REQUIREMENTS:
Dimensions and configurations: See figure 1.
Material: Steel, corrosion and heat-resistant in accordance with SAE-AMS5646. Parts shall be fluorescent penetrate inspected in accordance with ASTM E1417.
Cleaning: Parts shall be degreased and immersed for not less than 20 minutes in a solution of 1 volume of nitric acid (specific gravity = 1.42) and 9 volumes of water at room temperature.
PIN:
MS9198 -08
Nut tube coupling size (see figure 1)
PIN Example:
Specification sheet number
MS9198-08 identifies a nut tube coupling .500 inch (0.13 mm) tube. Do not use unassigned PIN's.
The approximate weight for each fitting is shown in table I.
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