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WS4127-2-72 — Technical Data Sheet

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— · 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 HOSE,AIR BREATHING is a the manufacturer industrial component. Key specifications include hose_weight: 1.666 OUNCES PER LINEAR FOOT OZ, wall_thickness: 0.098 INCHES NOMINAL IN, connection_type: FLANGE BOTH ENDS, inside_diameter: 0.625 INCHES NOMINAL FIRST END IN, special_features: LIFE SUPPORT ITEM; CONNECTION TYPE: FLANGE, ROUND W/HOLES BOTH ENDS, style_designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4720-00-781-4703, 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
WS4127-2-72
NSN: 4720-00-781-4703
FSC: 4720
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
hose_weight1.666 OUNCES PER LINEAR FOOT OZ
wall_thickness0.098 INCHES NOMINAL IN
connection_typeFLANGE BOTH ENDS
inside_diameter0.625 INCHES NOMINAL FIRST END IN
special_featuresLIFE SUPPORT ITEM; CONNECTION TYPE: FLANGE, ROUND W/HOLES BOTH ENDS
style_designatorHELICALLY WOUND CONTINOUS WIRE SUPPORTED
operating_pressure40.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
cross-sectional_shape_styleROUND
measuring_method_and_length72.000 INCHES NOMINAL OVERALL IN
NSN4720-00-781-4703
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: WS4127-2-72 · 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
•
WALL THICKNESS: 0.098 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
OPERATING PRESSURE: 40.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
STYLE DESIGNATOR: HELICALLY WOUND CONTINOUS WIRE SUPPORTED
•
MEASURING METHOD AND LENGTH: 72.000 INCHES NOMINAL OVERALL IN
•
CONNECTION TYPE: FLANGE BOTH ENDS
•
INSIDE DIAMETER: 0.625 INCHES NOMINAL FIRST END IN
TECHNICAL CHARACTERISTICS
WALL THICKNESS0.098 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEROUND
OPERATING PRESSURE40.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
STYLE DESIGNATORHELICALLY WOUND CONTINOUS WIRE SUPPORTED
SPECIAL FEATURESLIFE SUPPORT ITEM; CONNECTION TYPE: FLANGE, ROUND W/HOLES BOTH ENDS
MEASURING METHOD AND LENGTH72.000 INCHES NOMINAL OVERALL IN
CONNECTION TYPEFLANGE BOTH ENDS
INSIDE DIAMETER0.625 INCHES NOMINAL FIRST END IN
HOSE WEIGHT1.666 OUNCES PER LINEAR FOOT OZ
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
REDAR A90105-13InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
WS4127-3-72InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
266AS100-3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A80910-3InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
MILH23927SIZEBInterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
REDAR-A80910-03InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WS4127-2-72?
WS4127-2-72 is a HOSE,AIR BREATHING.
What parts can replace WS4127-2-72?
There are 7 known substitutes for WS4127-2-72: REDAR A90105-13, WS4127-3-72, 266AS100-3 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for WS4127-2-72?
WS4127-2-72 is cataloged in the Federal Logistics Information System under NSN 4720-00-781-4703. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026