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21AR — TRAP,AIR

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

21AR: TRAP,AIR.

The TRAP,AIR is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING VALVE, overall_width: 6.250 INCHES NOMINAL IN, overall_height: 5.250 INCHES MINIMUM AND 5.359 INCHES MAXIMUM IN, thread_direction: RIGHT-HAND INLET, operating_pressure: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS, outlet_thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-063-9832, 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
21AR
NSN: 4730-00-063-9832
NIINs: 000639832, 008401948, 013807420
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 03933 — ARMSTRONG INTERNATIONAL INC DBA ARMSTRONG MACHINE WORKS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING VALVE
overall_width6.250 INCHES NOMINAL IN
overall_height5.250 INCHES MINIMUM AND 5.359 INCHES MAXIMUM IN
thread_directionRIGHT-HAND INLET
operating_pressure125.0 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_size0.750 INCHES IN
inlet_connection_type_and_quantity1 THREADED INTERNAL PIPE
NSN4730-00-063-9832
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 21AR · 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
•
INLET CONNECTION NOMINAL PIPE SIZE: 0.500 INCHES IN
•
OUTLET CONNECTION NOMINAL PIPE SIZE: 0.500 INCHES IN
•
OUTLET THREAD SERIES DESIGNATOR: NPT
•
OPERATING PRESSURE: 175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
OVERALL OUTSIDE DIAMETER: 6.250 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND INLET
•
INLET THREAD SERIES DESIGNATOR: NPT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT5.250 INCHES NOMINAL IN
INLET CONNECTION NOMINAL PIPE SIZE0.500 INCHES IN
OUTLET CONNECTION NOMINAL PIPE SIZE0.500 INCHES IN
OUTLET THREAD SERIES DESIGNATORNPT
OPERATING PRESSURE175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
OVERALL OUTSIDE DIAMETER6.250 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND INLET
INLET THREAD SERIES DESIGNATORNPT
OUTLET THREAD QUANTITY PER INCH14
MATERIALSTEEL CORROSION RESISTING FLOAT ARM
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 21AR?
21AR is a TRAP,AIR.
What is the NSN for 21AR?
21AR is cataloged in the U.S. Government catalog under NSN 4730-00-063-9832. This indicates validated use in U.S. government and defense supply chains.
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