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1426AS121-1 — ADAPTER,STRAIGHT,PIPE TO GAS FIT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1426AS121-1: ADAPTER,STRAIGHT,PIPE TO GAS FIT.

ADAPTER,STRAIGHT,PIPE TO GAS FIT. Key specifications include material: COPPER ALLOY OVERALL, seat_angle: 37.0 DEGREES SECOND END, connection_type: THREADED EXTERNAL GAS FITTING SECOND END, connection_style: INVERTED FLARE (GAS FITTING) SECOND END, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 0.250 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-159-8630, 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
1426AS121-1
NSN: 4730-01-159-8630
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_angle37.0 DEGREES SECOND END
connection_typeTHREADED EXTERNAL GAS FITTING SECOND END
connection_styleINVERTED FLARE (GAS FITTING) SECOND END
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.250 INCHES FIRST END IN
maximum_operating_temp160.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length1.650 INCHES IN
media_for_which_designedOXYGEN, GASEOUS SINGLE RESPONSE
thread_series_designatorNGO SECOND END
NSN4730-01-159-8630
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1426AS121-1 · 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
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
•
NOMINAL OVERALL LENGTH: 1.650 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST END
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NOMINAL THREAD SIZE: 0.903 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION STYLEINVERTED FLARE (GAS FITTING) SECOND END
NOMINAL OVERALL LENGTH1.650 INCHES IN
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
CONNECTION TYPETHREADED EXTERNAL GAS FITTING SECOND END
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE0.903 INCHES SECOND END IN
NOMINAL THREAD SIZE0.250 INCHES FIRST END IN
SEAT ANGLE37.0 DEGREES SECOND END
MAXIMUM OPERATING TEMP160.0 FAHRENHEIT SINGLE RESPONSE DEGF
SUBSTITUTES & CROSS-REFERENCES 1
A591Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1426AS121-1?
1426AS121-1 is a ADAPTER,STRAIGHT,PIPE TO GAS FIT.
What parts can replace 1426AS121-1?
There is 1 known substitute for 1426AS121-1: A591. Substitute compatibility should be verified for your specific system.
What is the NSN for 1426AS121-1?
1426AS121-1 is cataloged in the U.S. Government catalog under NSN 4730-01-159-8630. This indicates validated use in U.S. government and defense supply chains.
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