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PC5138304 — NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

PC5138304: NUT,TUBE COUPLING.

The NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: TUBE COUPLING, nut_height: 0.641 INCHES NOMINAL IN, seat_angle: 30.00 DEGREES NOMINAL, thread_series: UNS, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-203-3433, 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
PC5138304
NSN: 4730-00-203-3433
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: C7432 — POWER COMPONENTS (DEUTSCHLAND) GMBH (DEU)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleTUBE COUPLING
nut_height0.641 INCHES NOMINAL IN
seat_angle30.00 DEGREES NOMINAL
thread_seriesUNS
thread_directionRIGHT-HAND
fabrication_methodMACHINED
length_to_shoulder0.516 INCHES NOMINAL IN
width_across_flats0.688 INCHES NOMINAL IN
nominal_thread_size0.625 INCHES IN
thread_pitch_diameters+0.5925 TO 0.5966 INCHES IN
smallest_inside_diameter0.324 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
NSN4730-00-203-3433
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: PC5138304 · 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
•
LENGTH TO SHOULDER: 0.516 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.688 INCHES NOMINAL IN
•
THREAD SERIES: UNS
•
THREAD PITCH DIAMETERS: +0.5925 TO 0.5966 INCHES IN
•
SEAT ANGLE: 30.00 DEGREES NOMINAL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
NUT HEIGHT: 0.641 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH TO SHOULDER0.516 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.688 INCHES NOMINAL IN
THREAD SERIESUNS
THREAD PITCH DIAMETERS+0.5925 TO 0.5966 INCHES IN
SEAT ANGLE30.00 DEGREES NOMINAL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.625 INCHES IN
NUT HEIGHT0.641 INCHES NOMINAL IN
NUT STYLETUBE COUPLING
THREAD QUANTITY PER INCH20
SUBSTITUTES & CROSS-REFERENCES 3
5177490Reference document
Same NSN cross-reference
Reference document — Secondary reference
5138304Reference document
Same NSN cross-reference
Reference document — Secondary reference
300-5BReference document
Same NSN cross-reference
Reference document — Secondary 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 PC5138304?
PC5138304 is a NUT,TUBE COUPLING.
What parts can replace PC5138304?
There are 3 known substitutes for PC5138304: 5177490, 5138304, 300-5B. Substitute compatibility should be verified for your specific system.
What is the NSN for PC5138304?
PC5138304 is cataloged in the U.S. Government catalog under NSN 4730-00-203-3433. 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.