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Technical Data Sheet
PartsTable / COMPONENT / 810-1385783
810-1385783 ✓ 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 RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include material: STEEL, thickness: 1.375 INCHES NOMINAL IN, neck_height: 2.000 INCHES NOMINAL IN, flange_diameter: 9.000 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, bolt_hole_diameter: 0.938 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-256-8478, 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
810-1385783
NSN: 4730-00-256-8478
FSC: 4730
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL
thickness1.375 INCHES NOMINAL IN
neck_height2.000 INCHES NOMINAL IN
flange_diameter9.000 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.938 INCHES NOMINAL IN
bolt_hole_quantity8
raised_face_height0.250 INCHES NOMINAL IN
bolt_circle_diameter7.250 INCHES NOMINAL IN
flange_section_styleRAISED FACE, WELDING NECK
raised_face_diameter6.250 INCHES NOMINAL IN
operating_pressure_and_type600.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 750.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
NSN4730-00-256-8478
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 810-1385783 · 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 FOR WHICH DESIGNED: 3.500 INCHES IN
•
BOLT HOLE QUANTITY: 8
•
THICKNESS: 1.375 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-872 MIL SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: STEEL
•
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED: 850.0 FAHRENHEIT STEAM AND 425.0 FAHRENHEIT WATER DEGF
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY 3-1/2 IN.SIZE IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL PIPE SIZE FOR WHICH DESIGNED3.500 INCHES IN
BOLT HOLE QUANTITY8
THICKNESS1.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-872 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIALSTEEL
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED850.0 FAHRENHEIT STEAM AND 425.0 FAHRENHEIT WATER DEGF
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY 3-1/2 IN.SIZE IN
OPERATING PRESSURE AND TYPE600.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 750.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
RAISED FACE DIAMETER6.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
B-196Interchangeable
interchangeable cross-reference
interchangeable
V3B90063-103Interchangeable
interchangeable cross-reference
interchangeable
AE157-003-99Interchangeable
interchangeable cross-reference
interchangeable
810-1385733Interchangeable
interchangeable cross-reference
interchangeable
7697851Interchangeable
interchangeable cross-reference
interchangeable
663640Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 810-1385783?
810-1385783 is a RELAY,ELECTROMAGNETIC.
What parts can replace 810-1385783?
There are 9 known substitutes for 810-1385783: B-196, V3B90063-103, AE157-003-99 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 810-1385783?
810-1385783 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-256-8478. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026