This specification defines the requirements for alloy steel externallythreaded fasteners procuredunder part numbers listed on drawings which refer to thisspecification. Typically these fastenersare used for tension, shear, and tension-fatigue applications where180 KSI Ftu and 108 KSI Fsu isdesired with a service temperature capability to 450° F. Receivingcontractors may reject anymanufacturing lot whit does not conform.
The specification includes mechanical property requirements for twoclasses of fasteners asfollows:
Type I – Tension head (hex, double hex, 12 spline, etc. without aninternal or recess drive) andstuds.
Type II – 100° full flush head and internal wrenching (pan,fillister, brazier, etc.) headconfiguration.
Workmanship of fasteners shall conform with aircraft fastenermanufacturing processes.
Recommendations for improvements or corrections to this specificationshould be directed to an NASCrepresentative of a using company or to the Executive Secretary of theNational Aerospace StandardCommittee.
Specifications listed herein, of the issue in effect on date ofinquiry, are a part of thisspecification to extent indicated. In the case of conflict, therequirements herein shall takeprecedence.
Unless otherwise specified, part inventory manufactured to MIL-B-8831or previous revisions of theapplicable drawing or specification may be procured and used untilstock is depleted.
- Edition:
- 3
- Published:
- 10/01/2003
- Number of Pages:
- 20
- File Size:
- 1 file , 1.4 MB
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