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Technical Data Sheet
PartsTable / COMPONENT / AAC5273K
AAC5273K ✓ 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 SEMICONDUCTOR DEVICE,DIODE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_width: 0.440 INCHES NOMINAL IN, inside_diameter: 1.625 INCHES NOMINAL IN, style_designator: WIRE, fastening_device_type: SLOTTED HEXAGON HEAD SCREW. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-2069, 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
AAC5273K
NSN: 4730-00-278-2069
FSC: 4730
CAGE: 78940 — UNITED AIR FILTER, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.440 INCHES NOMINAL IN
inside_diameter1.625 INCHES NOMINAL IN
style_designatorWIRE
fastening_device_typeSLOTTED HEXAGON HEAD SCREW
NSN4730-00-278-2069
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AAC5273K · 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
•
FASTENING DEVICE TYPE: SLOTTED HEXAGON HEAD SCREW
•
INSIDE DIAMETER: 1.625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: WIRE
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.440 INCHES NOMINAL IN
FASTENING DEVICE TYPESLOTTED HEXAGON HEAD SCREW
INSIDE DIAMETER1.625 INCHES NOMINAL IN
STYLE DESIGNATORWIRE
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
2555CP10Interchangeable
interchangeable cross-reference
interchangeable
3910558Interchangeable
interchangeable cross-reference
interchangeable
6506Interchangeable
interchangeable cross-reference
interchangeable
TP6506Interchangeable
interchangeable cross-reference
interchangeable
588 NO 6Interchangeable
interchangeable cross-reference
interchangeable
24241Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AAC5273K?
AAC5273K is a SEMICONDUCTOR DEVICE,DIODE.
What parts can replace AAC5273K?
There are 16 known substitutes for AAC5273K: 2555CP10, 3910558, 6506 and 13 more. Substitute compatibility should be verified for your specific system.
Is AAC5273K still available?
AAC5273K 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