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4X396 ✓ 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 COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include depth: 2.000 INCHES NOMINAL IN, width: 2.750 INCHES NOMINAL IN, length: 4.500 INCHES NOMINAL IN, weight: 8.0 POUNDS NOMINAL LBS, material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, bore_shape: STRAIGHT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-177-0987, 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
4X396
NSN: 4730-01-177-0987
FSC: 4730
CAGE: 25795 — W.W. GRAINGER, INC. DIV GOVERNMENT SALES DIVISION (USA)
SPECIFICATIONS
depth2.000 INCHES NOMINAL IN
width2.750 INCHES NOMINAL IN
length4.500 INCHES NOMINAL IN
weight8.0 POUNDS NOMINAL LBS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
bore_shapeSTRAIGHT
handle_typeSTRAIGHT OR OFFSET
constructionLAMINATED
flange_width0.0420 INCHES NOMINAL IN
storage_typeGENERAL PURPOSE WAREHOUSE
air_flow_rate16.0 CUBIC FEET PER MINUTE NOMINAL
bore_diameter0.2500 INCHES MINIMUM AND 0.2503 INCHES MAXIMUM IN
NSN4730-01-177-0987
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4X396 · 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 25
B23Interchangeable
interchangeable cross-reference
interchangeable
488503Interchangeable
interchangeable cross-reference
interchangeable
488503X1CInterchangeable
interchangeable cross-reference
interchangeable
100210Interchangeable
interchangeable cross-reference
interchangeable
4DF4Interchangeable
interchangeable cross-reference
interchangeable
B37-238Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4X396?
4X396 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 4X396?
There are 25 known substitutes for 4X396: B23, 488503, 488503X1C and 22 more. Substitute compatibility should be verified for your specific system.
Is 4X396 still available?
4X396 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