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6703B — HOSE ASSEMBLY,NONMETALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

6703B: HOSE ASSEMBLY,NONMETALLIC.

The HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include temp_rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF, exterior_color: BLACK, connection_type: THREADED EXTERNAL PIPE FIRST END, inside_diameter: 0.188 INCHES NOMINAL IN, connection_style: PLAIN FIRST END, outside_diameter: 0.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4720-00-148-5084, 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
6703B
NSN: 4720-00-148-5084
NIINs: 001485084, 003737628
FSC: 4720 — Hose and Flexible Tubing
CAGE: 57733 — STEWART-WARNER CORPORATION (USA)
SPECIFICATIONS
temp_rating-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
exterior_colorBLACK
connection_typeTHREADED EXTERNAL PIPE FIRST END
inside_diameter0.188 INCHES NOMINAL IN
connection_stylePLAIN FIRST END
outside_diameter0.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
burst_test_pressure12000.0 POUNDS PER SQUARE INCH LBS
nominal_thread_size0.125 INCHES FIRST END IN
end_item_identificationGUN 5IN/54 CAL., MK-42 & 45; WHIDBEY ISLAND CLASS LSD IN
inside_surface_conditionSMOOTH
NSN4720-00-148-5084
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 6703B · 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
•
MEASURING METHOD AND LENGTH: 18.000 INCHES NOMINAL WORKING IN
•
TEMP RATING: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
MINIMUM INSIDE BENDING RADIUS: 3.500 INCHES IN
•
CONNECTION STYLE: PLAIN FIRST END
•
LAYER COMPOSITION AND LOCATION: OUTER LAYER MOLDED RUBBER, BUNA-N AND 1ST LAYER BRAIDED STEEL WIRE
•
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST END
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH18.000 INCHES NOMINAL WORKING IN
TEMP RATING-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
MINIMUM INSIDE BENDING RADIUS3.500 INCHES IN
CONNECTION STYLEPLAIN FIRST END
LAYER COMPOSITION AND LOCATIONOUTER LAYER MOLDED RUBBER, BUNA-N AND 1ST LAYER BRAIDED STEEL WIRE
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
THREAD DIRECTIONRIGHT-HAND FIRST END
SUBSTITUTES & CROSS-REFERENCES 1
4720PL0749454Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6703B?
6703B is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace 6703B?
There is 1 known substitute for 6703B: 4720PL0749454. Substitute compatibility should be verified for your specific system.
What is the NSN for 6703B?
6703B is cataloged in the U.S. Government catalog under NSN 4720-00-148-5084. 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.