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1551AS422 — UNION,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1551AS422: UNION,PIPE.

The UNION,PIPE is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, seat_type: GASKET, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: THREADED, operating_pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-299-9482, 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
1551AS422
NSN: 4730-01-299-9482
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
materialIRON OVERALL
seat_typeGASKET
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorTHREADED
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.750 INCHES ALL ENDS IN
nominal_overall_length1.880 INCHES IN
media_for_which_designedSTEAM SINGLE RESPONSE
thread_series_designatorNPT ALL ENDS
NSN4730-01-299-9482
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1551AS422 · 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) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.880 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: THREADED
•
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
SEAT TYPE: GASKET
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
MEDIA FOR WHICH DESIGNED: STEAM SINGLE RESPONSE
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
NOMINAL OVERALL LENGTH1.880 INCHES IN
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
STYLE DESIGNATORTHREADED
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SEAT TYPEGASKET
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
MATERIALIRON OVERALL
THREAD SERIES DESIGNATORNPT ALL ENDS
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 1
150Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 1551AS422?
1551AS422 is a UNION,PIPE.
What parts can replace 1551AS422?
There is 1 known substitute for 1551AS422: 150. Substitute compatibility should be verified for your specific system.
What is the NSN for 1551AS422?
1551AS422 is cataloged in the U.S. Government catalog under NSN 4730-01-299-9482. This indicates validated use in U.S. government and defense supply chains.
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