PartsTable
Technical Data Sheet
N-40345-F ✓ 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 360 OR COPPER ALLOY 836 OVERALL, seat_angle: 20.0 DEGREES FIRST END, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARELESS (TUBE) FIRST END, nominal_thread_size: 0.500 INCHES SECOND END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-837-1177, 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
N-40345-F
NSN: 4730-00-837-1177
FSC: 4730
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OR COPPER ALLOY 836 OVERALL
seat_angle20.0 DEGREES FIRST END
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARELESS (TUBE) FIRST END
nominal_thread_size0.500 INCHES SECOND END IN
nominal_overall_length1.340 INCHES IN
end_item_identification3810-00-151-4431
thread_quantity_per_inch24 FIRST END
thread_series_designatorNPTF SECOND END
nondefinitive_spec/std_data1A FIGURE A
specification/standard_data81349-MIL-F-45911 GOVERNMENT SPECIFICATION AND 81343-J246 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN4730-00-837-1177
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: N-40345-F · 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
MATERIAL: COPPER ALLOY 360 OR COPPER ALLOY 836 OVERALL
CONNECTION STYLE: FLARELESS (TUBE) FIRST END
NONDEFINITIVE SPEC/STD DATA: 1A FIGURE A
THREAD CLASS: 2A FIRST END A
FURNISHED ITEMS AND QUANTITY: 1 LONG COUPLING NUT AND 1 COUPLING SLEEVE
THREAD QUANTITY PER INCH: 24 FIRST END
SEAT ANGLE: 20.0 DEGREES FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY 360 OR COPPER ALLOY 836 OVERALL
CONNECTION STYLEFLARELESS (TUBE) FIRST END
NONDEFINITIVE SPEC/STD DATA1A FIGURE A
THREAD CLASS2A FIRST END A
FURNISHED ITEMS AND QUANTITY1 LONG COUPLING NUT AND 1 COUPLING SLEEVE
THREAD QUANTITY PER INCH24 FIRST END
SEAT ANGLE20.0 DEGREES FIRST END
END ITEM IDENTIFICATION3810-00-151-4431
SPECIFICATION/STANDARD DATA81349-MIL-F-45911 GOVERNMENT SPECIFICATION AND 81343-J246 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
THREAD SERIES DESIGNATORNPTF SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
221977Interchangeable
interchangeable cross-reference
interchangeable
222063Interchangeable
interchangeable cross-reference
interchangeable
J246Interchangeable
interchangeable cross-reference
interchangeable
972906R91Interchangeable
interchangeable cross-reference
interchangeable
62AB-10Interchangeable
interchangeable cross-reference
interchangeable
205418Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N-40345-F?
N-40345-F is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace N-40345-F?
There are 30 known substitutes for N-40345-F: 221977, 222063, J246 and 27 more. Substitute compatibility should be verified for your specific system.
Is N-40345-F still available?
N-40345-F is currently cancelled.
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