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1787809PC4 — NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1787809PC4: NUT,TUBE COUPLING.

The NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, duty_type: CONTINUOUS, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, body_width: 2.531 INCHES NOMINAL IN, head_style: PAN, scale_type: WEIGHING. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-678-9724, 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
1787809PC4
NSN: 4730-00-678-9724
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
duty_typeCONTINUOUS
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
body_width2.531 INCHES NOMINAL IN
head_stylePAN
scale_typeWEIGHING
time_delay0.01 SECONDS NOMINAL FIXED RELEASE TIME
blade_shapeDISK
body_height3.032 INCHES NOMINAL IN
body_length2.812 INCHES NOMINAL IN
design_formDOUBLE-ENDED
head_height0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
NSN4730-00-678-9724
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1787809PC4 · 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 3
205-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
69769Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
8693914Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1787809PC4?
1787809PC4 is a NUT,TUBE COUPLING.
What parts can replace 1787809PC4?
There are 3 known substitutes for 1787809PC4: 205-6, 69769, 8693914. Substitute compatibility should be verified for your specific system.
What is the NSN for 1787809PC4?
1787809PC4 is cataloged in the U.S. Government catalog under NSN 4730-00-678-9724. 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.