MIL-DTL-45912B
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified
in the contract or order (see 6.2). When packaging of materiel is to be performed by DoD or in-
house contractor personnel, these personnel need to contact the responsible packaging activity
to ascertain packaging requirements. Packaging requirements are maintained by the Inventory
Control Point's packaging activities within the Military Service or Defense Agency, or within the
military service's system commands. Packaging data retrieval is available from the managing
Military Department's or Defense Agency's automated packaging files, CD-ROM products, or by
contacting the responsible packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but
is not mandatory.)
6.1 Intended use. The bolt covered by this specification is intended for use when a self-
locking fastener is needed or where the reduction of fatigue failure is desired. Typical
applications include uses as cylinder head bolts, flywheel housing bolts, connecting rod bolts,
and as bearing cap screws. The bolt may be used in tapped holes or with nuts.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a.
Title, number and date of this specification.
b.
Title, number and date of applicable Military standard(s) (see 3.2).
c.
Applicable MS part number (see 3.2).
d.
Copies and distribution of test certifications.
e.
Packaging requirements (see 5.1).
6.3 Subject term (key word) listing.
Grade 5
Grade 8
SAE Grade 5
SAE Grade 8
6.4 Description. The bolt covered by this specification is a one piece, free-spinning type of
self-locking bolt. Locking action is provided by a flexible diaphragm which is formed between the
slotted segments of the upper part of the bolt head and the circular recess adjacent to the shank
in the lower part of the head. This diaphragm acts as a controlled spring element when the head is
wrenched against a rigid seat. When used as a bearing cap screw, the material which the head of
the bolt seats should be hard enough to form a rigid seat.
6.5 Changes from previous issue. Marginal notations are not used in this revision to identify
changes with respect to the previous issue due to the extent of the changes.
Custodian:
Preparing Activity:
Army AR
DLA - IS
Air Force 99
(Project 5306-2013-003)
Review Activity:
Army - MI
NOTE: The activities listed above were interested in this document as of the date of document.
Since organizations and responsibilities can change, you should verify the currency of the
information above using the ASSIST Online database at https://assist.dla.mil.
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