SAE AS 21919-2000 pdf download CLAMP, LOOP TYPE, CUSHIONED SUPPORT
NOTES:
1. MATERIAL:
BAND:
a. CODE LETTER C – TYPE 321 CORROSION RESISTANT STEEL PER AMS 5510
b. CODE LETTER D – 2024-0 ALUMINUM ALLOY PER AMS-QQ-A-250/5
CUSHION:
a. CODE LETTER E – ETHYLENE PROPYLENE PER MIL-C-85052/2
b. CODE LETTER F – NITRILE PER MIL-C-85052/1
c. CODE LETTER G – CHLOROPRENE PER AMS 3209 AND OZONE RESISTANCE REQUIREMENTS PER NOTE 11
d. CODE LETTER H – SILICONE PER AMS 3310
e. CODE LETTER J – FLUOROSILICONE PER MIL-R-25988, TYPE II, CLASS 1, GRADE 60
2. HEAT TREATMENT:
a. CODE LETTER D – HEAT TREAT TO T42 TEMPER IN ACCORDANCE WITH AMS-H-6088
3. FINISH:
a. CODE LETTER C – PASSIVATE PER AMS-QQ-P-35
b. CODE LETTER D – CHEMICAL CONVERSION COATING PER MIL-C-5541, CLASS 1 A
/4/ MATERIAL COMBINATION CODES: LETTERS INDICATE BAND AND CUSHION MATERIAL CODES. DO NOT SPECIFY BAND/CUSHION COMBINATIONS NOT LISTED. MAXIMUM RECOMMENDED TEMPERATURE IS INDICATED IN PARENTHESIS.
a. DE = ALUMINUM ALLOY BAND WITH ETHYLENE PROPYLENE CUSHION (212 °F)
b. DF = ALUMINUM ALLOY BAND WITH NITRILE CUSHION (275 °F)
c. DG = ALUMINUM ALLOY BAND WITH CHLOROPRENE CUSHION (212 °F)
d. CE = CRES BAND WITH ETHYLENE PROPYLENE CUSHION (275 °F)
e. CF = CRES BAND WITH NITRILE CUSHION (275 °F)
f. CG = CRES BAND WITH CHLOROPRENE CUSHION (212 °F)
g. CH = CRES BAND WITH SILICONE CUSHION (400 °F)
h. CJ = CRES BAND WITH FLUOROSILICONE CUSHION (392 °F)
/5/ STIFFENING BEAD SHALL BE REQUIRED ON SIZE -06 THRU -24. ALL RADII ON THE STIFFENING BEAD SHALL BE SMOOTH AND BLEND. NO SHARP TOOL MARKS ARE ALLOWED.
6. IDENTIFICATION: MARK PART NUMBER AND MANUFACTURER’S NAME, TRADEMARK OR CAGE CODE PER AS478-2A1. DO NOT MARK IN RADIUS.

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