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6640819 — ADAPTER,STRAIGHT,PIPE TO HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6640819: ADAPTER,STRAIGHT,PIPE TO HOSE.

The ADAPTER,STRAIGHT,PIPE TO HOSE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY TAILPIECE, flow_angle: 90.0 DEGREES, thread_class: 2A SECOND END A, overall_length: 4.000 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL BOSS SECOND END, connection_style: PLAIN (PIPE) FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-417-2394, 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
6640819
NSN: 4730-01-417-2394
NIINs: 014172394, 014172395, 014172400, 014172402, 014190541, 017073166
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY TAILPIECE
flow_angle90.0 DEGREES
thread_class2A SECOND END A
overall_length4.000 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL BOSS SECOND END
connection_stylePLAIN (PIPE) FIRST END
special_features1/2 IN. NPS IN
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.500 INCHES FIRST END IN
maximum_operating_temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length6.000 INCHES IN
end_item_identificationSEAWOLF CLASS SSN
NSN4730-01-417-2394
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6640819 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 CAP AND 1 CHAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-C-15726 MIL SPEC SINGLE MATERIAL RESPONSE BODY
•
OPERATING PRESSURE: 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
MAXIMUM OPERATING TEMP: 180.0 FAHRENHEIT DEGF
•
MATERIAL: COPPER ALLOY BODY
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 CAP AND 1 CHAIN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-15726 MIL SPEC SINGLE MATERIAL RESPONSE BODY
OVERALL LENGTH4.000 INCHES NOMINAL IN
OPERATING PRESSURE100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
MAXIMUM OPERATING TEMP180.0 FAHRENHEIT DEGF
SPECIAL FEATURES1/2 IN. NPS IN
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
MATERIALCOPPER ALLOY BODY
QUICK DISCONNECT METHODPUSH-PULL
SUBSTITUTES & CROSS-REFERENCES 3
2633-002-01 ASSY 13Reference document
Same NSN cross-reference
Reference document — Secondary reference
2633-002-01Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
801-6640819ASSY13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6640819?
6640819 is a ADAPTER,STRAIGHT,PIPE TO HOSE.
What parts can replace 6640819?
There are 3 known substitutes for 6640819: 2633-002-01 ASSY 13, 2633-002-01, 801-6640819ASSY13. Substitute compatibility should be verified for your specific system.
What is the NSN for 6640819?
6640819 is cataloged in the U.S. Government catalog under NSN 4730-01-417-2394. This indicates validated use in U.S. government and defense supply chains.
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