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Technical Data Sheet
PartsTable / COMPONENT / 19-02-1235
19-02-1235 ✓ 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,HOSE TO BOSS is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, thread_class: 3A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARED W/ GASKET SEAL (BOSS) FIRST END, nominal_thread_size: 2.312 INCHES FIRST END IN, nominal_overall_length: 5.250 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-119-0557, 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
19-02-1235
NSN: 4730-01-119-0557
FSC: 4730
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARED W/ GASKET SEAL (BOSS) FIRST END
nominal_thread_size2.312 INCHES FIRST END IN
nominal_overall_length5.250 INCHES IN
thread_quantity_per_inch12 FIRST END
thread_series_designatorUNS FIRST END
departure_from_cited_documentMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
criticality_code_justificationZZZW
nominal_inside_diameter_hose_accommodated1.297 INCHES SECOND END IN
nominal_outside_diameter_hose_accommodated1.797 INCHES SECOND END IN
NSN4730-01-119-0557
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 19-02-1235 · 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
•
SPECIFICATION/STANDARD DATA: 81349-MIL-H-24135 GOVERNMENT SPECIFICATION
•
THREAD CLASS: 3A SECOND END A
•
CONNECTION TYPE: THREADED EXTERNAL BOSS SECOND END
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
MAXIMUM OPERATING TEMP: 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
THREAD QUANTITY PER INCH: 12 SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
SPECIFICATION/STANDARD DATA81349-MIL-H-24135 GOVERNMENT SPECIFICATION
THREAD CLASS3A SECOND END A
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
MAXIMUM OPERATING TEMP200.0 FAHRENHEIT SINGLE RESPONSE DEGF
THREAD QUANTITY PER INCH12 SECOND END
CONNECTION STYLEGRIPPING NIPPLE (NOSE) FIRST END
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING FIRST END
MATERIALNICKEL ALLOY A OVERALL
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED2.000 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
4-190909 3-8 8Interchangeable
interchangeable cross-reference
interchangeable
MIL-H-24135Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-24787/3 GRI TY CInterchangeable
interchangeable cross-reference
interchangeable
4-191909-1-20Interchangeable
interchangeable cross-reference
interchangeable
4C190909-1-20L1Interchangeable
interchangeable cross-reference
interchangeable
4-190909-1-20L1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 19-02-1235?
19-02-1235 is a ADAPTER,STRAIGHT,HOSE TO BOSS.
What parts can replace 19-02-1235?
There are 26 known substitutes for 19-02-1235: 4-190909 3-8 8, MIL-H-24135, MIL-F-24787/3 GRI TY C and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 19-02-1235?
19-02-1235 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-119-0557. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026