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PartsTable / COMPONENT / A2399-40ZK
A2399-40ZK ✓ 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 FLANGE,PIPE,SWIVEL RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, thickness: 0.750 INCHES NOMINAL IN, neck_height: 0.355 INCHES NOMINAL IN, flange_width: 4.180 INCHES NOMINAL IN, recess_depth: 0.355 INCHES NOMINAL IN, flange_length: 4.500 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-400-6544, 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
A2399-40ZK
NSN: 4730-00-400-6544
FSC: 4730
CAGE: 98441 — PARKER HANNIFIN CORP DBA PNEUTRONICS DIV STRATOFLEX PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialSTEEL
thickness0.750 INCHES NOMINAL IN
neck_height0.355 INCHES NOMINAL IN
flange_width4.180 INCHES NOMINAL IN
recess_depth0.355 INCHES NOMINAL IN
flange_length4.500 INCHES NOMINAL IN
recess_diameter3.344 INCHES NOMINAL IN
special_featuresSPLIT-FLANGE
style_designatorRECTANGULAR, WITH BOLT HOLES
surface_treatmentZINC
bolt_hole_diameter0.531 INCHES NOMINAL IN
bolt_hole_quantity4
NSN4730-00-400-6544
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A2399-40ZK · 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
•
FLANGE WIDTH: 4.180 INCHES NOMINAL IN
•
BOLT HOLE DIAMETER: 0.531 INCHES NOMINAL IN
•
NECK HEIGHT: 0.355 INCHES NOMINAL IN
•
FLANGE LENGTH: 4.500 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 3.500 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE WIDTH4.180 INCHES NOMINAL IN
BOLT HOLE DIAMETER0.531 INCHES NOMINAL IN
NECK HEIGHT0.355 INCHES NOMINAL IN
FLANGE LENGTH4.500 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH3.500 INCHES NOMINAL IN
END ITEM IDENTIFICATION20 TON WHEEL MOUNTED CRANE,HARNISCHFEGER MODEL M320RT
SPECIAL FEATURESSPLIT-FLANGE
MATERIALSTEEL
OPERATING PRESSURE AND TYPE1775.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED LBS
STYLE DESIGNATORRECTANGULAR, WITH BOLT HOLES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
663095Interchangeable
interchangeable cross-reference
interchangeable
94-4644-24Interchangeable
interchangeable cross-reference
interchangeable
3H4330Interchangeable
interchangeable cross-reference
interchangeable
51H-32Interchangeable
interchangeable cross-reference
interchangeable
4730001165229Interchangeable
interchangeable cross-reference
interchangeable
M52525/16-32Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A2399-40ZK?
A2399-40ZK is a FLANGE,PIPE,SWIVEL RETAINING.
What parts can replace A2399-40ZK?
There are 23 known substitutes for A2399-40ZK: 663095, 94-4644-24, 3H4330 and 20 more. Substitute compatibility should be verified for your specific system.
Is A2399-40ZK still available?
A2399-40ZK 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