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Technical Data Sheet
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435578 ✓ 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 SLEEVE,CLINCH,TUBE FITTING is a the manufacturer industrial component. Key specifications include length: 0.125 INCHES NOMINAL IN, diameter: 0.250 INCHES NOMINAL IN, style_designator: PROJECTION ONE END LEFT INTERNAL THREAD, cross-sectional_shape: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-462-7781, 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
435578
NSN: 4730-00-462-7781
FSC: 4730
CAGE: 01014 — AVTRON AEROSPACE INC (USA)
SPECIFICATIONS
length0.125 INCHES NOMINAL IN
diameter0.250 INCHES NOMINAL IN
style_designatorPROJECTION ONE END LEFT INTERNAL THREAD
cross-sectional_shapeROUND
NSN4730-00-462-7781
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 435578 · 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
•
STYLE DESIGNATOR: FLARELESS
•
METALLIC HARDNESS RATING: 99.5 NOMINAL ROCKWELL B
•
SEAT ANGLE IN DEG: 40.0
•
MATERIAL: STEEL
•
SURFACE TREATMENT: CADMIUM
•
SPECIFICATION/STANDARD DATA: 96906-MS51825 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
NONDEFINITIVE SPEC/STD DATA: 28 FIGURE
•
SLEEVE OUTSIDE DIAMETER: 0.836 INCHES MINIMUM AND 0.840 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORFLARELESS
METALLIC HARDNESS RATING99.5 NOMINAL ROCKWELL B
SEAT ANGLE IN DEG40.0
MATERIALSTEEL
SURFACE TREATMENTCADMIUM
SPECIFICATION/STANDARD DATA96906-MS51825 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NONDEFINITIVE SPEC/STD DATA28 FIGURE
SLEEVE OUTSIDE DIAMETER0.836 INCHES MINIMUM AND 0.840 INCHES MAXIMUM IN
FLANGE OUTSIDE DIAMETER0.925 INCHES NOMINAL IN
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
MS51825-8PAInterchangeable
interchangeable cross-reference
interchangeable
J514Interchangeable
interchangeable cross-reference
interchangeable
12TUSInterchangeable
interchangeable cross-reference
interchangeable
435578Interchangeable
interchangeable cross-reference
interchangeable
272987Interchangeable
Same NIIN cross-reference
interchangeable
960F3-4Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 435578?
435578 is a SLEEVE,CLINCH,TUBE FITTING.
What parts can replace 435578?
There are 10 known substitutes for 435578: MS51825-8PA, J514, 12TUS and 7 more. Substitute compatibility should be verified for your specific system.
Is 435578 still available?
435578 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026