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Technical Data Sheet
PartsTable / COMPONENT / 65-1-1/4
65-1-1/4 ✓ 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 65-1-1/4 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-023-7777, 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
65-1-1/4
NSN: 4730-01-023-7777
FSC: 4730
CAGE: 34646 — ATI LADISH LLC DBA ATI WAH CHANG DIV ATI FORGED PRODUCTS - CUDAHY (USA)
SPECIFICATIONS
Part Number65-1-1/4
NSN4730-01-023-7777
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 65-1-1/4 · 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
•
FLANGE DIAMETER: 5.250 INCHES NOMINAL IN
•
OPERATING PRESSURE AND TYPE: 600.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED AND 600.0 POUNDS PER SQUARE INCH (PSI) OIL MAXIMUM REQUIRED AND 600.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
•
RAISED FACE HEIGHT: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
SURFACE TREATMENT: PRIMER
•
BOLT CIRCLE DIAMETER: 3.875 INCHES NOMINAL IN
•
RAISED FACE DIAMETER: 2.500 INCHES NOMINAL IN
•
NECK HEIGHT: 0.312 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE DIAMETER5.250 INCHES NOMINAL IN
OPERATING PRESSURE AND TYPE600.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED AND 600.0 POUNDS PER SQUARE INCH (PSI) OIL MAXIMUM REQUIRED AND 600.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
RAISED FACE HEIGHT0.250 INCHES NOMINAL IN
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
SURFACE TREATMENTPRIMER
BOLT CIRCLE DIAMETER3.875 INCHES NOMINAL IN
RAISED FACE DIAMETER2.500 INCHES NOMINAL IN
NECK HEIGHT0.312 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN
FACE SEATING SURFACE CONDITIONGROUND
SOCKET DIAMETER1.700 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
2575C19Interchangeable
interchangeable cross-reference
interchangeable
62085Interchangeable
interchangeable cross-reference
interchangeable
193-3Interchangeable
interchangeable cross-reference
interchangeable
151 1-4Interchangeable
interchangeable cross-reference
interchangeable
651 1-4Interchangeable
interchangeable cross-reference
interchangeable
046-1-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 65-1-1/4?
65-1-1/4 is a 65-1-1/4.
What parts can replace 65-1-1/4?
There are 16 known substitutes for 65-1-1/4: 2575C19, 62085, 193-3 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 65-1-1/4?
65-1-1/4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-023-7777. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026