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Technical Data Sheet
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UA538951-429 — UA538951-429

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

UA538951-429: UA538951-429.

The UA538951-429 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-01-454-9351, 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
UA538951-429
NSN: 4730-01-454-9351
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 78943 — TRIUMPH THERMAL SYSTEMS, LLC (USA)
SPECIFICATIONS
Part NumberUA538951-429
NSN4730-01-454-9351
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: UA538951-429 · 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: 1.188 INCHES NOMINAL IN
•
THREAD PROVISION: THREADED LOCATION NOT OTHERWISE SPECIFIED
•
DESIGN TYPE: TUBULAR, HEX SHAPE
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF) LOCATION NOT OTHERWISE SPECIFIED
•
THREAD LENGTH: 0.938 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
OUTSIDE DIAMETER: 0.375 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
•
THREAD SIZE DESIGNATOR: 9/16-18 LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS
LENGTH1.188 INCHES NOMINAL IN
THREAD PROVISIONTHREADED LOCATION NOT OTHERWISE SPECIFIED
DESIGN TYPETUBULAR, HEX SHAPE
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF) LOCATION NOT OTHERWISE SPECIFIED
THREAD LENGTH0.938 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE DIAMETER0.375 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
THREAD SIZE DESIGNATOR9/16-18 LOCATION NOT OTHERWISE SPECIFIED
SURFACE TREATMENTANODIZE
THREAD CLASS3A LOCATION NOT OTHERWISE SPECIFIED A
SUBSTITUTES & CROSS-REFERENCES 1
UA538951Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is UA538951-429?
UA538951-429 is a UA538951-429.
What parts can replace UA538951-429?
There is 1 known substitute for UA538951-429: UA538951. Substitute compatibility should be verified for your specific system.
What is the NSN for UA538951-429?
UA538951-429 is cataloged in the U.S. Government catalog under NSN 4730-01-454-9351. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.