| Standard Number | BS SP 55 and SP 56:1953+A3:2016 |
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| Title | Specification for washers, spring, double coil (inch sizes), steel, cadmium plated and phosphor bronze. For aircraft |
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| Status | Current |
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| Publication Date | 29 June 1953 |
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| Confirm Date | 01 October 2013 |
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| Normative References(Required to achieve compliance to this standard) | No other standards are normatively referenced |
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| Informative References(Provided for Information) | No other standards are informatively referenced |
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| Amended By | PD 2716
PD 4559
Amendment, February 2016. Amends and replaces BS SP 55 and SP 56:1953. |
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| Draft Superseded By | 15/30303217 DC |
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| Descriptors | Spring washers, Washers, Separating parts, Aircraft components, Steels, Phosphor bronzes, Bronzes, Dimensions |
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| ICS | 49.030.50
|
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| Title in French | Rondelles a ressort double spire pour aeronefs. Specification |
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| Title in German | Doppelfederringe fuer Flugzeuge. Spezifikation |
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| Committee | ACE/12 |
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| ISBN | 978 0 580 87036 1 |
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| Publisher | BSI |
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| Format | A4 |
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| Delivery | Yes |
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| Pages | 8 |
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| File Size | 271 KB |
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| Price | £110.00 |
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