BS EN 3752:2004 pdf free.Nuts, self-locking,MJ threads, in heat resisting steel FE-PA2601 (A286),MoS, coated — Classification:
1 100 MPa (at ambienttemperature)/ 425°C—Technical specification.
BS EN 3752 This standard specifies the characteristics; qualification and acceptance requirements for self-ocking nuts withMJ threads in FE-PA2601,MoS2 coated, for aerospace applications.Classification: 1 100 MPa 1)/ 425°℃ 2)lt is applicable whenever referenced.
The following referenced documents are indispensable for the application of this document.For datedreferences,only the edition cited applies. For undated references，the latest edition of the referenceddocument (including any amendments) applies.
For the purposes of this standard, the following terms and definitions apply.
batch quantity of finished nuts, of the same type and same diameter,produced from the same material obtainedfrom the same melt，manufactured in the course of the same production cycle,following the samemanufacturing route and having undergone all the relevant heat treatments and surface treatments.
The purpose of acceptance inspections and tests is to check, as simply as possible, by a methodrepresentative of actual use conditions，with the uncertainty inherent to statistical sampling, that the nutsconstituting the batch satisfy the requirements of this standard.
Acceptance inspections and tests (requirements, methods, numbers of nuts) are specified in table 1 ; theyshall be carried out on each production batch or inspection lot. Nuts from the batch or lot to be tested shalbe selected by simple random sampling.
Each nut may be submitted to several inspections or tests.
lf a more stringent inspection is deemed necessary, all or part of the qualification inspections and tests maybe performed during the acceptance inspection and testing. In this case, the number of nuts submitted tothese inspections and tests is the same as that submitted for qualification inspection and tests.
Acceptance inspections and tests shall be carried out by the manufacturer, or under his responsibility
A test report showing actual numerical values shall be provided if specified in the purchase order.BS EN 3752 pdf download.