PartsTable
Technical Data Sheet
421634ITEM97 ✓ Verified by PartsTable
· HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 377 OVERALL, flow_angle: 90.0 DEGREES, leg_length: 0.880 INCHES NOMINAL FIRST END IN, seat_angle: 45.0 DEGREES FIRST END, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-250-7927, 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
421634ITEM97
NSN: 4730-00-250-7927
FSC: 4730
CAGE: 66935 — JOHNSON CONTROLS NAVY SYSTEMS, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 377 OVERALL
flow_angle90.0 DEGREES
leg_length0.880 INCHES NOMINAL FIRST END IN
seat_angle45.0 DEGREES FIRST END
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARED (TUBE) FIRST END
special_featuresWEAPON SYSTEM ESSENTIAL
operating_pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.438 INCHES FIRST END IN
maximum_operating_temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
media_for_which_designedVACUUM THIRD RESPONSE
NSN4730-00-250-7927
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 421634ITEM97 · 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
CRITICALITY CODE JUSTIFICATION: FEAT
SEAT ANGLE: 45.0 DEGREES FIRST END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE TREATMENT RESPONSE OVERALL
FLOW ANGLE: 90.0 DEGREES
MATERIAL: COPPER ALLOY 377 OVERALL
OPERATING PRESSURE: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MEDIA FOR WHICH DESIGNED: VACUUM THIRD RESPONSE
NOMINAL THREAD SIZE: 0.438 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATIONFEAT
SEAT ANGLE45.0 DEGREES FIRST END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE TREATMENT RESPONSE OVERALL
FLOW ANGLE90.0 DEGREES
MATERIALCOPPER ALLOY 377 OVERALL
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MEDIA FOR WHICH DESIGNEDVACUUM THIRD RESPONSE
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
LEG LENGTH0.750 INCHES NOMINAL SECOND END IN
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
2039001-60Interchangeable
interchangeable cross-reference
interchangeable
A348Interchangeable
interchangeable cross-reference
interchangeable
A5007Interchangeable
interchangeable cross-reference
interchangeable
854576Interchangeable
interchangeable cross-reference
interchangeable
91A2027Interchangeable
interchangeable cross-reference
interchangeable
637899Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 421634ITEM97?
421634ITEM97 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 421634ITEM97?
There are 31 known substitutes for 421634ITEM97: 2039001-60, A348, A5007 and 28 more. Substitute compatibility should be verified for your specific system.
Is 421634ITEM97 still available?
421634ITEM97 is currently cancelled.
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