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ADP4890 ✓ 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

CLUTCH HALF,POSITIVE,NONVEHICULA. Key specifications include shape: RECTANGULAR, end_type: GLAND NUT W/INTERNAL THREAD FIRST END, material: ALUMINUM, duty_type: INTERMITTENT, base_style: MEDIUM PREFOCUS, body_width: 1.312 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-585-2204, 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
ADP4890
NSN: 4730-00-585-2204
FSC: 4730
CAGE: 72634 — DIELECTRIC PRODUCTS CO INC (USA)
SPECIFICATIONS
shapeRECTANGULAR
end_typeGLAND NUT W/INTERNAL THREAD FIRST END
materialALUMINUM
duty_typeINTERMITTENT
base_styleMEDIUM PREFOCUS
body_width1.312 INCHES NOMINAL IN
bulb_styleT (TUBULAR)
glass_typeSODA-LIME
body_height1.000 INCHES NOMINAL IN
body_length2.312 INCHES NOMINAL IN
closure_typeCAP
coil_quantity1
NSN4730-00-585-2204
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ADP4890 · 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 27
64-638PKInterchangeable
interchangeable cross-reference
interchangeable
23-1053PKInterchangeable
interchangeable cross-reference
interchangeable
E1-4BInterchangeable
interchangeable cross-reference
interchangeable
3432Interchangeable
interchangeable cross-reference
interchangeable
3422Interchangeable
interchangeable cross-reference
interchangeable
15146SIZE16MLInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ADP4890?
ADP4890 is a CLUTCH HALF,POSITIVE,NONVEHICULA.
What parts can replace ADP4890?
There are 27 known substitutes for ADP4890: 64-638PK, 23-1053PK, E1-4B and 24 more. Substitute compatibility should be verified for your specific system.
Is ADP4890 still available?
ADP4890 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