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N566PC120 — INVERTED NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

N566PC120: INVERTED NUT,TUBE COUPLING.

The INVERTED NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OR COPPER ALLOY 345 OR COPPER ALLOY 350 OR COPPER ALLOY 377 TEE, nut_style: TUBE COUPLING, flow_angle: 90.0 DEGREES, leg_length: 1.00 INCHES NOMINAL FIRST END IN, nut_height: 0.880 INCHES NOMINAL IN, seat_angle: 45.0 DEGREES FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-019-0236, 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
N566PC120
NSN: 4730-00-019-0236
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0AT62 — SIEMENS ENERGY, INC. DBA DRESSER-RAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OR COPPER ALLOY 345 OR COPPER ALLOY 350 OR COPPER ALLOY 377 TEE
nut_styleTUBE COUPLING
flow_angle90.0 DEGREES
leg_length1.00 INCHES NOMINAL FIRST END IN
nut_height0.880 INCHES NOMINAL IN
seat_angle45.0 DEGREES FIRST END
head_height0.340 INCHES NOMINAL IN
thread_size11/16-18
thread_class2A FIRST END A
physical_formLIQUID
thread_seriesUNF
overall_length0.680 INCHES NOMINAL IN
NSN4730-00-019-0236
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: N566PC120 · 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 9
N334PC120Reference document
Same NSN cross-reference
Reference document — Secondary reference
F4689PC120Reference document
Same NSN cross-reference
Reference document — Secondary reference
N451PC120Reference document
Same NSN cross-reference
Reference document — Secondary reference
PC497S49-57PC120Reference document
Same NSN cross-reference
Reference document — Secondary reference
N476PC120Reference document
Same NSN cross-reference
Reference document — Secondary reference
J512Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is N566PC120?
N566PC120 is a INVERTED NUT,TUBE COUPLING.
What parts can replace N566PC120?
There are 9 known substitutes for N566PC120: N334PC120, F4689PC120, N451PC120 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N566PC120?
N566PC120 is cataloged in the U.S. Government catalog under NSN 4730-00-019-0236. 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.