PartsTable
Technical Data Sheet
57017 ITEM 689 ✓ 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

CHAMBER,COMBUSTION,AIRCRAFT GAS. Key specifications include material: COPPER ALLOY OVERALL, reducer_type: CONCENTRIC, connection_type: UNTHREADED INTERNAL TUBE SECOND END, connection_style: SOCKET (TUBE) SECOND END, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_overall_length: 1.250 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 4730-01-143-4138, 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
57017 ITEM 689
NSN: 4730-01-143-4138
FSC: 4730
CAGE: 82340 — L3HARRIS TECHNOLOGIES, INC. DIV SPACE AND AIRBORNE SYSTEMS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
reducer_typeCONCENTRIC
connection_typeUNTHREADED INTERNAL TUBE SECOND END
connection_styleSOCKET (TUBE) SECOND END
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_overall_length1.250 INCHES IN
nominal_outside_diameter_tube_accommodated1.680 INCHES SECOND END IN
NSN4730-01-143-4138
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 57017 ITEM 689 · 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
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.920 INCHES FIRST END IN
CONNECTION TYPE: UNTHREADED INTERNAL TUBE FIRST END
CONNECTION STYLE: SOCKET (TUBE) FIRST END
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL: COPPER ALLOY OVERALL
NOMINAL OVERALL LENGTH: 1.250 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.920 INCHES FIRST END IN
CONNECTION TYPEUNTHREADED INTERNAL TUBE FIRST END
CONNECTION STYLESOCKET (TUBE) FIRST END
CONNECTION TYPEUNTHREADED INTERNAL TUBE SECOND END
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.680 INCHES SECOND END IN
MATERIALCOPPER ALLOY OVERALL
NOMINAL OVERALL LENGTH1.250 INCHES IN
CONNECTION STYLESOCKET (TUBE) SECOND END
REDUCER TYPECONCENTRIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
658438Interchangeable
interchangeable cross-reference
interchangeable
672381Interchangeable
interchangeable cross-reference
interchangeable
576154Interchangeable
interchangeable cross-reference
interchangeable
67238Interchangeable
interchangeable cross-reference
interchangeable
GGG-R-400Interchangeable
interchangeable cross-reference
interchangeable
GGG-R-400 TY2SZ7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 57017 ITEM 689?
57017 ITEM 689 is a CHAMBER,COMBUSTION,AIRCRAFT GAS.
What parts can replace 57017 ITEM 689?
There are 6 known substitutes for 57017 ITEM 689: 658438, 672381, 576154 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 57017 ITEM 689?
57017 ITEM 689 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-143-4138. This indicates validated use in U.S. government and defense supply chains.
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