MIL-DTL-22050E (SH)
material for use in fluids other than those designated in this specification is determined beforehand in appropriate
immersion tests.
6.1.1 Grade 1 material is intended for use in all applications in 1.1 up to and including 230oF.
6.1.2 Grades 2 and 3 material are intended for use in all applications listed in 1.1 up to and including
o
280 F, except that Grade 3 is not intended for use in various polar fluids such as aqueous monoethanolamine.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a.
Title, number, and date of this specification.
b.
Grade of material required (see 1.2).
c.
O-ring PIN, or form and dimensions required (see 1.2.1, 3.2 and 3.2.1).
d.
Packaging requirements (see 5.1).
e.
Material Safety Data Sheet (MSDS), when required (see 6.5).
f.
Toxicity conformance (see 3.7 and 6.6).
g.
Off-gassing conformance (see 3.9 and 6.7).
6.3 Limited testing option. Conformance testing can be reduced provided the following criteria are met.
If the product has been previously tested and the test results verified in writing by the Defense Contractor
Administration Specialist (DCAS) in that area, the following tests from 4.4 can be omitted: 4.4.5, 4.4.6, 4.4.7 and
4.4.8.
6.4 Suggested formulation. Vulcanizates prepared from the formulation shown below have been found to
meet the requirements of this specification:
Compounding ingredients1
Grade 1 parts by weight
Grade 2 parts by weight
Nordel 1040
100
100
United SPF
50
80
Protox 166
5
5
Calcium stearate
1
1
Age Rite Resin D
2
2
Sulfur
0.3
0.3
DiCup 40-C
10
10
Cure: 30 minutes at 320oF (160oC).
1
These were the specific ingredients used when developing these formulations. Many of these ingredients are
available under other brand names. It is not the intention of this listing to limit the choice of the commercial source
of an ingredient or to infer that one brand is better than another.
6.4.1 The above formulations are offered only as suggestions. The Government does not guarantee that
materials made from these formulations will conform to the requirements of this specification. Use of these
formulations does not relieve the supplier from having his product tested for conformity with the specification.
6.5 Material safety data sheets. Contracting officers will identify those activities requiring copies of
completed Material Safety Data Sheets prepared in accordance with FED-STD-313. In order to obtain the MSDS,
FAR clause 52.223-3 must be in the contract.
6.6 Toxicity evaluation. The NAVENVIRHLTHCEN requires sufficient information to permit a HHA of
the product. Any questions concerning toxicity, information required to conduct a HHA, and requests for a HHA
should be addressed to the Commanding Officer, Navy Environmental Health Center, ATTN: Hazardous Materials
Department, Industrial Hygiene Directorate, 620 John Paul Jones Circle, Suite 1100, Portsmouth, VA 20378-2103.
9
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