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303-597 — ADAPTER BODY,TUBE-HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

303-597: ADAPTER BODY,TUBE-HOSE.

The ADAPTER BODY,TUBE-HOSE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, flange_width: 0.188 INCHES NOMINAL IN, overall_length: 1.688 INCHES NOMINAL IN, surface_treatment: PASSIVATE, flange_outside_diameter: 0.375 INCHES NOMINAL IN, hose_inside_diameter_for_which_designed: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-829-4420, 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
303-597
NSN: 4730-00-829-4420
NIINs: 008294420, 011917981
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 21119 — EVINRUDE MOTORS PRODUCT GROUP OF OUTBOARD MARINE CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
flange_width0.188 INCHES NOMINAL IN
overall_length1.688 INCHES NOMINAL IN
surface_treatmentPASSIVATE
flange_outside_diameter0.375 INCHES NOMINAL IN
hose_inside_diameter_for_which_designed0.312 INCHES NOMINAL IN
NSN4730-00-829-4420
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 303-597 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HOSE INSIDE DIAMETER FOR WHICH DESIGNED: 0.312 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE
•
FLANGE WIDTH: 0.188 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING
•
FLANGE OUTSIDE DIAMETER: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HOSE INSIDE DIAMETER FOR WHICH DESIGNED0.312 INCHES NOMINAL IN
OVERALL LENGTH1.688 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE
FLANGE WIDTH0.188 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING
FLANGE OUTSIDE DIAMETER0.375 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
328446Reference document
Same NSN cross-reference
Reference document — Secondary reference
0328446Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 303-597?
303-597 is a ADAPTER BODY,TUBE-HOSE.
What parts can replace 303-597?
There are 2 known substitutes for 303-597: 328446, 0328446. Substitute compatibility should be verified for your specific system.
What is the NSN for 303-597?
303-597 is cataloged in the U.S. Government catalog under NSN 4730-00-829-4420. 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.