PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILR6855CL1GR60-0-625X0-125Tubing,nonmetallic

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4720-01-158-6550 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-01-158-6550 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-158-6550. Primary manufacturer part number: MILR6855CL1GR60-0-625X0-125.
Features
  • Tubing,nonmetallic — FSC 4720
  • Nondefinitive Spec/std Data: 1 CLASS AND 60 GRADE
  • Outside Diameter: 0.625 INCHES NOMINAL IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR TUBE
  • Inside Surface Condition: SMOOTH
  • Flexibility: FLEXIBLE
  • Inside Diameter: 0.375 INCHES NOMINAL IN
  • Nonmetallic Hardness Rating: 60.0 NOMINAL SHORE DUROMETER A
Applications
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr Tube construction
General Description

The Tubing,nonmetallic, cataloged under National Stock Number 4720-01-158-6550, is classified within Federal Supply Class 4720 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-01-158-6550
Primary Part NumberMILR6855CL1GR60-0-625X0-125
Item NameTubing,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Nondefinitive Spec/std Data1 CLASS AND 60 GRADE
Outside Diameter0.625 INCHES NOMINAL IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR TUBE
Inside Surface ConditionSMOOTH
FlexibilityFLEXIBLE
Inside Diameter0.375 INCHES NOMINAL IN
Nonmetallic Hardness Rating60.0 NOMINAL SHORE DUROMETER A
Outer Covering Environmental ProtectionFUEL RESISTANT AND OIL RESISTANT AND LOW TEMPERATURE
Minimum Tensile Strength1300 POUNDS PER SQUARE INCH LBS
Cross-Sectional Shape StyleROUND
Material Document and ClassificationMIL-R-6855, CLASS 1, GRADE 60 MIL SPEC SINGLE MATERIAL RESPONSE TUBE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5331-00-119-1643 INTERCHANGEABLE
O-Ring
4720-00-233-0068 INTERCHANGEABLE
Tubing,nonmetallic
9320-00-241-9741 INTERCHANGEABLE
Rubber Sheet,solid
9320-00-261-5424 INTERCHANGEABLE
Rubber Sheet,solid
5331-00-727-29630014-6025N406-6 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5331-00-820-292473553-60X2PC10 INTERCHANGEABLE
O-Ring
Electric Boat Corporation Div General Dynamics Electric Boat
4720-01-093-2132AMS-R-6855A INTERCHANGEABLE
Tubing,nonmetallic
Sae International Dba Sae International
5330-01-309-5004 INTERCHANGEABLE
Rubber Round Section
Cross-Reference Index
Part NumberManufacturer
MILR6855CL1GR60-0-625X0-125 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
10150494 Nimikkeistokeskus Ncb Finland (FIN)
MIL-R-6855 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AMS-R-6855A Society of Automotive Engineers Inc (USA)
AMS-R-6855A Sae International Dba Sae International (USA)
Related Parts
5331-00-119-1643INTERCHANGEABLE
O-RING
4720-00-233-0068INTERCHANGEABLE
TUBING,NONMETALLIC
9320-00-241-9741INTERCHANGEABLE
RUBBER SHEET,SOLID
9320-00-261-5424INTERCHANGEABLE
RUBBER SHEET,SOLID
5331-00-727-2963INTERCHANGEABLE
O-RING
0014-6025N406-6
5331-00-820-2924INTERCHANGEABLE
O-RING
73553-60X2PC10
4720-01-093-2132INTERCHANGEABLE
TUBING,NONMETALLIC
AMS-R-6855A
5330-01-309-5004INTERCHANGEABLE
RUBBER ROUND SECTION

Frequently Asked Questions

What is NSN 4720-01-158-6550?

NSN 4720-01-158-6550 is a Tubing,nonmetallic, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-01-158-6550?

NSN 4720-01-158-6550 has 5 cross-referenced part numbers: MILR6855CL1GR60-0-625X0-125 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 10150494 (Nimikkeistokeskus Ncb Finland), MIL-R-6855 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AMS-R-6855A (Society of Automotive Engineers Inc), AMS-R-6855A (Sae International Dba Sae International).

What NSN replaces 4720-01-158-6550?

There are 8 known substitutes for 4720-01-158-6550: 5331-00-119-1643, 4720-00-233-0068, 9320-00-241-9741 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILR6855CL1GR60-0-625X0-125?

Key specifications for MILR6855CL1GR60-0-625X0-125: Nondefinitive Spec/std Data: 1 CLASS AND 60 GRADE; Outside Diameter: 0.625 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR TUBE; Inside Surface Condition: SMOOTH. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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