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203699 — HOSE ASSEMBLY,METALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

203699: HOSE ASSEMBLY,METALLIC.

The HOSE ASSEMBLY,METALLIC is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_style: PLAIN, SOLID, tooth_form: STANDARD, pitch_diameter: 0.2490 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES, teeth_quantity: 24. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-220-8288, 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
203699
NSN: 4720-01-220-8288
NIINs: 012208288, 013010569, 013428744
FSC: 4720 — Hose and Flexible Tubing
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_stylePLAIN, SOLID
tooth_formSTANDARD
pitch_diameter0.2490 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity24
style_designatorPROTRUDING HUB
surface_treatmentPASSIVATE OVERALL
face_nominal_width0.318 INCHES IN
hub_nominal_diameter0.093 INCHES FIRST END IN
hub_style_designatorPLAIN FIRST END
nominal_outside_diameter0.269 INCHES IN
NSN4720-01-220-8288
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 203699 · 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
SUBSTITUTES & CROSS-REFERENCES 4
2004373-4ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2004373-ASSEMBLReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
181808-0001Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SSBN616-207-2004373Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 203699?
203699 is a HOSE ASSEMBLY,METALLIC.
What parts can replace 203699?
There are 4 known substitutes for 203699: 2004373-4A, 2004373-ASSEMBL, 181808-0001 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 203699?
203699 is cataloged in the U.S. Government catalog under NSN 4720-01-220-8288. 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.