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801-6640963ASSY42 — ADAPTER,STRAIGHT,PIPE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

801-6640963ASSY42: ADAPTER,STRAIGHT,PIPE TO BOSS.

The ADAPTER,STRAIGHT,PIPE TO BOSS is a the manufacturer industrial component. Key specifications include thread_class: 3A SECOND END A, connection_type: UNTHREADED INTERNAL PIPE FIRST END, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END, operating_pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 2.750 INCHES SECOND END IN, end_item_identification: VALVE, SWING C; SEAWOLF, CLASS SSN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-416-6910, 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
801-6640963ASSY42
NSN: 4730-01-416-6910
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
thread_class3A SECOND END A
connection_typeUNTHREADED INTERNAL PIPE FIRST END
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
operating_pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size2.750 INCHES SECOND END IN
end_item_identificationVALVE, SWING C; SEAWOLF, CLASS SSN
thread_quantity_per_inch12 SECOND END
thread_series_designatorUN SECOND END
nominal_pipe_size_accommodated1.250 INCHES FIRST END IN
NSN4730-01-416-6910
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 801-6640963ASSY42 · 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 PIPE SIZE ACCOMMODATED: 1.250 INCHES FIRST END IN
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE FIRST END
•
OPERATING PRESSURE: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NOMINAL THREAD SIZE: 2.750 INCHES SECOND END IN
•
THREAD CLASS: 3A SECOND END A
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED1.250 INCHES FIRST END IN
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION TYPEUNTHREADED INTERNAL PIPE FIRST END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE2.750 INCHES SECOND END IN
THREAD CLASS3A SECOND END A
END ITEM IDENTIFICATIONVALVE, SWING C; SEAWOLF, CLASS SSN
THREAD QUANTITY PER INCH12 SECOND END
THREAD SERIES DESIGNATORUN SECOND END
SUBSTITUTES & CROSS-REFERENCES 2
EB3461/3-24,TY1Reference document
Same NSN cross-reference
Reference document — Secondary reference
801-6640963Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 801-6640963ASSY42?
801-6640963ASSY42 is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace 801-6640963ASSY42?
There are 2 known substitutes for 801-6640963ASSY42: EB3461/3-24,TY1, 801-6640963. Substitute compatibility should be verified for your specific system.
What is the NSN for 801-6640963ASSY42?
801-6640963ASSY42 is cataloged in the U.S. Government catalog under NSN 4730-01-416-6910. This indicates validated use in U.S. government and defense supply chains.
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