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Technical Data Sheet
PartsTable / COMPONENT / MIL-PRF-6855/4
MIL-PRF-6855/4 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The MIL-PRF-6855/4 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-006-0048, indicating validated use in U.S. government and defense logistics supply chains.

Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MIL-PRF-6855/4
NSN: 4720-00-006-0048
FSC: 4720
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-PRF-6855/4
NSN4720-00-006-0048
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: MIL-PRF-6855/4 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
INSIDE SURFACE CONDITION: SMOOTH
•
INSIDE DIAMETER: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: 2 CLASS AND 60 GRADE AND B TYPE
•
SPECIFICATION/STANDARD DATA: 81349-MIL-R-6855 GOVERNMENT SPECIFICATION
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR TUBE
•
NONMETALLIC HARDNESS RATING: 55.0 MINIMUM SHORE DUROMETER A AND 65.0 MAXIMUM SHORE DUROMETER A
•
FLEXIBILITY: FLEXIBLE
•
OUTSIDE DIAMETER: 0.316 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE SURFACE CONDITIONSMOOTH
INSIDE DIAMETER0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA2 CLASS AND 60 GRADE AND B TYPE
SPECIFICATION/STANDARD DATA81349-MIL-R-6855 GOVERNMENT SPECIFICATION
MATERIALRUBBER CHLOROPRENE CLASS CR TUBE
NONMETALLIC HARDNESS RATING55.0 MINIMUM SHORE DUROMETER A AND 65.0 MAXIMUM SHORE DUROMETER A
FLEXIBILITYFLEXIBLE
OUTSIDE DIAMETER0.316 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEROUND
MINIMUM TENSILE STRENGTH1500 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
70550-81633-101Interchangeable
Same NIIN cross-reference
interchangeable
MIL-R-6855Interchangeable
Same NIIN cross-reference
interchangeable
60025077004Interchangeable
Same NIIN cross-reference
interchangeable
M6855/4-16H029Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-PRF-6855/4?
MIL-PRF-6855/4 is a MIL-PRF-6855/4.
What parts can replace MIL-PRF-6855/4?
There are 4 known substitutes for MIL-PRF-6855/4: 70550-81633-101, MIL-R-6855, 60025077004 and 1 more. Substitute compatibility should be verified for your specific system.
Is MIL-PRF-6855/4 still available?
MIL-PRF-6855/4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026