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Technical Data Sheet
PartsTable / COMPONENT / 678-16D
678-16D ✓ 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 HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include inside_diameter: 10.825 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-580-8548, 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
678-16D
NSN: 4730-00-580-8548
FSC: 4730
CAGE: 98441 — PARKER HANNIFIN CORP DBA PNEUTRONICS DIV STRATOFLEX PRODUCTS DIVISION (USA)
SPECIFICATIONS
inside_diameter10.825 INCHES NOMINAL IN
NSN4730-00-580-8548
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 678-16D · 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
•
FURNISHED ITEMS AND QUANTITY: 1 HOSE COUPLING NUT
•
NOMINAL THREAD SIZE: 1.312 INCHES FIRST END IN
•
CONNECTION TYPE: THREADED EXTERNAL HOSE GRIPPING SECOND END
•
SEAT ANGLE: 37.0 DEGREES FIRST END
•
LEG LENGTH: 0.656 INCHES NOMINAL FIRST END IN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.000 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
FURNISHED ITEMS AND QUANTITY1 HOSE COUPLING NUT
NOMINAL THREAD SIZE1.312 INCHES FIRST END IN
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING SECOND END
SEAT ANGLE37.0 DEGREES FIRST END
LEG LENGTH0.656 INCHES NOMINAL FIRST END IN
LEG LENGTH2.921 INCHES NOMINAL SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES FIRST END IN
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.875 INCHES SECOND END IN
THREAD QUANTITY PER INCH12 FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
136-1045-6DInterchangeable
interchangeable cross-reference
interchangeable
M83798/2-6Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-83798Interchangeable
interchangeable cross-reference
interchangeable
M83798/2-5Interchangeable
interchangeable cross-reference
interchangeable
MS87019-5Interchangeable
interchangeable cross-reference
interchangeable
678-12DInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 678-16D?
678-16D is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace 678-16D?
There are 32 known substitutes for 678-16D: 136-1045-6D, M83798/2-6, MIL-DTL-83798 and 29 more. Substitute compatibility should be verified for your specific system.
Is 678-16D still available?
678-16D 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