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PartsTable / COMPONENT / SS 845 1889816
SS 845 1889816 ✓ 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

COUPLING ASSEMBLY,SOUND ISOLATIO. Key specifications include material: STEEL, thickness: 0.500 INCHES NOMINAL IN, flange_diameter: 4.250 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, surface_treatment: OXIDE, bolt_hole_diameter: 0.547 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 4730-00-064-8581, 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
SS 845 1889816
NSN: 4730-00-064-8581
FSC: 4730
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL
thickness0.500 INCHES NOMINAL IN
flange_diameter4.250 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
surface_treatmentOXIDE
bolt_hole_diameter0.547 INCHES NOMINAL IN
bolt_hole_quantity4
bolt_circle_diameter3.141 INCHES NOMINAL IN
flange_section_stylePLAIN FACE (BLIND)
face_seating_surface_conditionMACHINED
NSN4730-00-064-8581
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SS 845 1889816 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL;6.547 IN.LG EXCLUDING STUDS,7.500 IN.O/D AT STUDS END,3.047 IN. I/D AT STUDS END,4 STUDS THD 5/8 IN.,11 AND 2 IN.LG;FLANGED END 7.500 IN O/D,0.928 IN.THK,3.947 IN I/D,4 BOLT HOLES 0.688 IN.DIA IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL;6.547 IN.LG EXCLUDING STUDS,7.500 IN.O/D AT STUDS END,3.047 IN. I/D AT STUDS END,4 STUDS THD 5/8 IN.,11 AND 2 IN.LG;FLANGED END 7.500 IN O/D,0.928 IN.THK,3.947 IN I/D,4 BOLT HOLES 0.688 IN.DIA IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
SS845-1889816Interchangeable
interchangeable cross-reference
interchangeable
14-97-0215Interchangeable
interchangeable cross-reference
interchangeable
2640-067 ASSEMBInterchangeable
interchangeable cross-reference
interchangeable
SS 845 1889816PC14-1INInterchangeable
interchangeable cross-reference
interchangeable
2640-067Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SS 845 1889816?
SS 845 1889816 is a COUPLING ASSEMBLY,SOUND ISOLATIO.
What parts can replace SS 845 1889816?
There are 5 known substitutes for SS 845 1889816: SS845-1889816, 14-97-0215, 2640-067 ASSEMB and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SS 845 1889816?
SS 845 1889816 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-064-8581. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026