PartsTable
Technical Data Sheet

DRAIN-AIR 1/2IN — TRAP,MOISTURE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

DRAIN-AIR 1/2IN: TRAP,MOISTURE.

The TRAP,MOISTURE is a the manufacturer industrial component. Key specifications include material: STEEL BODY, overall_width: 2.468 INCHES NOMINAL IN, overall_height: 2.875 INCHES NOMINAL IN, special_features: DISCHARGE MUFFLER INCLUDED, thread_direction: RIGHT-HAND INLET, operating_pressure: 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-038-2707, 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
DRAIN-AIR 1/2IN
NSN: 4730-01-038-2707
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 43791 — NICHOLSON STEAM TRAP INC (USA)
SPECIFICATIONS
materialSTEEL BODY
overall_width2.468 INCHES NOMINAL IN
overall_height2.875 INCHES NOMINAL IN
special_featuresDISCHARGE MUFFLER INCLUDED
thread_directionRIGHT-HAND INLET
operating_pressure600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
outlet_thread_directionRIGHT-HAND
inlet_thread_quantity_per_inch14
inlet_thread_series_designatorNPT
outlet_thread_quantity_per_inch14
outlet_thread_series_designatorNPT
inlet_connection_nominal_pipe_size0.500 INCHES IN
NSN4730-01-038-2707
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: DRAIN-AIR 1/2IN · 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
•
OUTLET CONNECTION TYPE AND QUANTITY: 1 THREADED INTERNAL PIPE
•
INLET CONNECTION NOMINAL PIPE SIZE: 0.500 INCHES IN
•
OUTLET CONNECTION NOMINAL PIPE SIZE: 0.500 INCHES IN
•
OUTLET THREAD DIRECTION: RIGHT-HAND
•
OUTLET THREAD SERIES DESIGNATOR: NPT
•
OPERATING PRESSURE: 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
TECHNICAL CHARACTERISTICS
OUTLET CONNECTION TYPE AND QUANTITY1 THREADED INTERNAL PIPE
OVERALL HEIGHT2.875 INCHES NOMINAL IN
INLET CONNECTION NOMINAL PIPE SIZE0.500 INCHES IN
OUTLET CONNECTION NOMINAL PIPE SIZE0.500 INCHES IN
OUTLET THREAD DIRECTIONRIGHT-HAND
OUTLET THREAD SERIES DESIGNATORNPT
OVERALL WIDTH2.468 INCHES NOMINAL IN
OPERATING PRESSURE600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
THREAD DIRECTIONRIGHT-HAND INLET
INLET THREAD SERIES DESIGNATORNPT
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 DRAIN-AIR 1/2IN?
DRAIN-AIR 1/2IN is a TRAP,MOISTURE.
What is the NSN for DRAIN-AIR 1/2IN?
DRAIN-AIR 1/2IN is cataloged in the U.S. Government catalog under NSN 4730-01-038-2707. 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.