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475429 — NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

475429: NUT,TUBE COUPLING.

The NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: TUBE COUPLING, nut_height: 1.430 INCHES MINIMUM AND 1.450 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT (UNJ), thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-075-2766, 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
475429
NSN: 4730-00-075-2766
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleTUBE COUPLING
nut_height1.430 INCHES MINIMUM AND 1.450 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT (UNJ)
thread_directionRIGHT-HAND
length_to_shoulder1.160 INCHES MINIMUM AND 1.180 INCHES MAXIMUM IN
width_across_flats2.113 INCHES MINIMUM AND 2.127 INCHES MAXIMUM IN
nominal_thread_size1.750 INCHES IN
smallest_inside_diameter1.425 INCHES MINIMUM AND 1.431 INCHES MAXIMUM IN
thread_quantity_per_inch12
nominal_tube_outside_diameter1.750 INCHES IN
NSN4730-00-075-2766
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 475429 · 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: 1.160 INCHES MINIMUM AND 1.180 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 2.113 INCHES MINIMUM AND 2.127 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT (UNJ)
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5646 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.750 INCHES IN
•
NUT HEIGHT: 1.430 INCHES MINIMUM AND 1.450 INCHES MAXIMUM IN
•
NUT STYLE: TUBE COUPLING
TECHNICAL CHARACTERISTICS
LENGTH TO SHOULDER1.160 INCHES MINIMUM AND 1.180 INCHES MAXIMUM IN
WIDTH ACROSS FLATS2.113 INCHES MINIMUM AND 2.127 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL JOINT (UNJ)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5646 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.750 INCHES IN
NUT HEIGHT1.430 INCHES MINIMUM AND 1.450 INCHES MAXIMUM IN
NUT STYLETUBE COUPLING
THREAD CLASS3B
THREAD QUANTITY PER INCH12
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 475429?
475429 is a NUT,TUBE COUPLING.
What is the NSN for 475429?
475429 is cataloged in the U.S. Government catalog under NSN 4730-00-075-2766. 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.