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Technical Data Sheet
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378M5 ✓ 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 ADAPTER,STRAIGHT,PIPE TO HOSE is a the manufacturer industrial component. Key specifications include color: PURPLE, height: 0.125 INCHES NOMINAL IN, diameter: 0.375 INCHES NOMINAL IN, material: PLASTIC HANDLE, body_style: PLAIN, bore_shape: STRAIGHT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-8257, 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
378M5
NSN: 4730-00-278-8257
FSC: 4730
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
colorPURPLE
height0.125 INCHES NOMINAL IN
diameter0.375 INCHES NOMINAL IN
materialPLASTIC HANDLE
body_stylePLAIN
bore_shapeSTRAIGHT
head_styleFLAT
seal_width0.500 INCHES NOMINAL IN
shaft_typeROUND, PARALLEL FLATTED SINGLE ACTUATOR
constructionSOLID
corner_shapeSQUARE ALL CORNERS
current_typeAC AND DC
NSN4730-00-278-8257
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 378M5 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
10586Interchangeable
interchangeable cross-reference
interchangeable
19003PInterchangeable
interchangeable cross-reference
interchangeable
10-418Interchangeable
interchangeable cross-reference
interchangeable
SVM-RInterchangeable
interchangeable cross-reference
interchangeable
94931Interchangeable
interchangeable cross-reference
interchangeable
94930Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 378M5?
378M5 is a ADAPTER,STRAIGHT,PIPE TO HOSE.
What parts can replace 378M5?
There are 31 known substitutes for 378M5: 10586, 19003P, 10-418 and 28 more. Substitute compatibility should be verified for your specific system.
Is 378M5 still available?
378M5 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