MIL-PRF-370J
The letters shall be a minimum of 0.18 in. high. Hoses shall be marked at 10-ft intervals or by
continuous impression branding, provided that the pattern shall be repeated every 5 ft or less.
Marking color shall contrast with the hose cover color. Each hose shall be marked with a
longitudinal stripe of a contrasting color, not less than 0.125 in. wide, and extending the full
length of the hoseline. The marking may be within the longitudinal stripe, provided the stripe is
at least 0.2 in. greater than the height of the letters. The marking may substitute for the
longitudinal stripe, provided it is continuous and extends the full length of the hoseline.
Labeling and longitudinal stripe shall remain clear, distinct and legible for the life of the
hoseline. Handling, bending, water, oil, and environmental effects shall not adversely affect the
marking or stripe.
3.5.5 NBC. Hose and hose assemblies shall be NBC contamination survivable and capable
of operating in an NBC environment. Nuclear survivability is not required. The hose and hose
assemblies shall be capable of being operated and serviced by personnel wearing Mission
Orientated Protective Posture (MOPP IV) chemical, biological and radiological clothing
(see 6.8) without special tools or support equipment. The design of the hose and hose assemblies
shall minimize the collection and retention of contaminants and decontaminates. The hose and
hose assemblies shall be decontaminable to negligible risk levels as defined in Army-approved
NBC contamination survivability criteria and AR70-75.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified
as follows:
a. First article test (FAT) (see 4.1.1)
b. Conformance inspection (CI) (see 4.1.2)
4.1.1 FAT. The contractor shall perform FAT test and inspections on production hose and
hose assemblies in accordance with Table VI and paragraphs 4.4 through 4.6 of this
SPECIFICATION. Observations, recorded data, and results shall be provided to the
Government in a FAT Final Test Report. Prior to the conduct of the FAT, a CI (see 4.1.2) shall
be completed and recorded as part of the Final Test Report. Nonconformance to any specified
requirement of this SPECIFICATION and any additional requirements of the contract, purchase
order, or scope of work (SOW); the failure of any test; or the presence of one or more defects
shall be cause for rejection of the FAT and the FAT Final Test Report (see 6.3).
TABLE VI. FAT application and test methods.
Hose type
Requirement
Test
Test description
Test
ABCD
Paragraph Paragraph
101
X
Weight
3.3.1.2
4.3.1.2
102
X X X X Static bond (at pressure)
3.3.4
4.3.4
103
X
Pull strength with re-attachable
3.3.5.3.1
4.3.5.1
fittings
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