MS14056B
NOTES:
1. All dimensions are in inches and are after plating.
2. Metric equivalents (to the nearest .01 mm) are given for general information only and are based upon 1 inch = 25.4 mm.
3. Surface roughness to be 63 or better in accordance with ASME-B46. 1 unless otherwise specified.
4. Remove all burrs and sharp edges .003-.005 (.08 -.13 mm) R unless otherwise specified.
5. All diameters to be concentric to each other within .005 (.13mm) total indicator reading (TIR), unless otherwise specified.
6. Outer contacts (shields) shall be crimped with a tool conforming to MIL-C-22520/5 with appropriate dies (see figure 3). The inner pin and socket contacts shall be either crimped with a MIL-C-22520/2 crimp tool or soldered in accordance with manufacturer's instructions.
7. Point at which a square ended .218 (5.54 mm) dia pin first engages the outer socket contact spring.
8. Point at which a square ended .0355 (.90 mm) dia pin first engages the inner socket contact spring.
9. Materials:
Outer socket contact, inner socket contact - beryllium copper in accordance with ASTM- B196/B196M, ASTM-B197/B197M, and ASTM-B194.
Outer pin contact, retaining ferrule, retaining nut - brass in accordance with ASTM-B121/B121M, ASTM-B36/B36M, ASTM-B16/B16M and ASTM-B124/B124M.
Inner pin contact - brass in accordance with ASTM-B159/B159M and
ASTM-B206/B206M.
Insulators - polyetrafluoroethylene (TFE) or fluorinated - ethylene - propylene (FEP) resin.
10. Engaging and separation forces - test pins to be in accordance with SAE-AS31971 except for the diameters listed below:
A. Outer socket contact - 48 oz max engaging force with .2192/.2190 (5.568/5.563 mm)
dia pin 4 oz min separation force with a .2170/.2168 (5.512/5.507 mm) dia pin.
B. Inner socket contact - 18 oz max engaging force with .0367/.-0365 (.932/.927 mm)
dia pin. 3/4 oz min separation force with a .0345/.0343 ( .876/.871 mm) dia pin.
11. Dielectric withstanding voltage - 1500 vac rms, applied between inner and outer contacts.
12. Insulation resistance - measured between inner and outer contacts.
13. Probe damage - not applicable.
14. Crimp tensile strength:
Dash no. |
Tensile strength (lbs. min) |
|
Inner contact |
Outer contact |
|
-1 |
4 |
18 |
-2 |
20 |
60 |
15. Contact retention:
A. Outer contact. 20 pounds. B. Inner contact: 5 pounds.
16. Contact resistance:
A. Outer contact: 5 mv at 1 amp. B. Inner contact: 15 mv at 1 amp.
FIGURE 1. Pin - Continued.
2
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