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H547-2003-189 — ADAPTER,STRAIGHT,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

H547-2003-189: ADAPTER,STRAIGHT,PIPE TO TUBE.

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include diameter: 0.375 INCHES NOMINAL IN, material: NICKEL ALLOY, construction: STRAIGHT SEAMED OR SEAMLESS, corner_shape: ROUND ALL CORNERS, end_similarity: NOT IDENTICAL, overall_length: 34.800 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-487-5120, 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
H547-2003-189
NSN: 4730-01-487-5120
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
diameter0.375 INCHES NOMINAL IN
materialNICKEL ALLOY
constructionSTRAIGHT SEAMED OR SEAMLESS
corner_shapeROUND ALL CORNERS
step_quantity2
end_similarityNOT IDENTICAL
overall_length34.800 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES
wall_thickness0.065 INCHES MINIMUM IN
first_end_styleSPLINED (STRAIGHT)
second_end_styleEXTERNAL THREADED
special_featuresNHA: LPT AND WST 30 INCH LOWER HATCH ASSEMBLY IN
NSN4730-01-487-5120
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: H547-2003-189 · 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
SUBSTITUTES & CROSS-REFERENCES 2
H547-2003Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
167-7066805Reference document
Same NSN cross-reference
Reference document — Drawing number 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 H547-2003-189?
H547-2003-189 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace H547-2003-189?
There are 2 known substitutes for H547-2003-189: H547-2003, 167-7066805. Substitute compatibility should be verified for your specific system.
What is the NSN for H547-2003-189?
H547-2003-189 is cataloged in the U.S. Government catalog under NSN 4730-01-487-5120. 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.