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BW673-2-4 — HOSE,METALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

BW673-2-4: HOSE,METALLIC.

The HOSE,METALLIC is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY INNER CONVEYING TUBE, inside_diameter: 4.000 INCHES NOMINAL IN, inner_conveying_tube_style: ANNULAR CLOSE-PITCH CORRUGATED, cross-sectional_shape_style: ROUND, layer_composition_and_location: 1ST LAYER BRAIDED WIRE. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-122-9152, 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
BW673-2-4
NSN: 4720-01-122-9152
FSC: 4720 — Hose and Flexible Tubing
CAGE: 61125 — ECHELON SUPPLY AND SERVICE, INC. (USA)
SPECIFICATIONS
materialNICKEL ALLOY INNER CONVEYING TUBE
inside_diameter4.000 INCHES NOMINAL IN
inner_conveying_tube_styleANNULAR CLOSE-PITCH CORRUGATED
cross-sectional_shape_styleROUND
layer_composition_and_location1ST LAYER BRAIDED WIRE
NSN4720-01-122-9152
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: BW673-2-4 · 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
•
LAYER COMPOSITION AND LOCATION: OUTER LAYER BRAIDED WIRE
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
INSIDE DIAMETER: 4.000 INCHES NOMINAL IN
•
MATERIAL: NICKEL ALLOY INNER CONVEYING TUBE
•
INNER CONVEYING TUBE STYLE: ANNULAR CLOSE-PITCH CORRUGATED
TECHNICAL CHARACTERISTICS
LAYER COMPOSITION AND LOCATIONOUTER LAYER BRAIDED WIRE
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED WIRE
CROSS-SECTIONAL SHAPE STYLEROUND
INSIDE DIAMETER4.000 INCHES NOMINAL IN
MATERIALNICKEL ALLOY INNER CONVEYING TUBE
INNER CONVEYING TUBE STYLEANNULAR CLOSE-PITCH CORRUGATED
OTHER ITEMS IN FSC 4720 — Hose and Flexible Tubing
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4720-00-000-0080 4720-00-000-0081 4720-00-000-0084 4720-00-000-0724 4720-00-001-0014 4720-00-001-0015 4720-00-001-0023 4720-00-001-0025
SUBSTITUTES & CROSS-REFERENCES 1
BW73-2 4INReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BW673-2-4?
BW673-2-4 is a HOSE,METALLIC.
What parts can replace BW673-2-4?
There is 1 known substitute for BW673-2-4: BW73-2 4IN. Substitute compatibility should be verified for your specific system.
What is the NSN for BW673-2-4?
BW673-2-4 is cataloged in the U.S. Government catalog under NSN 4720-01-122-9152. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.