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522578 ✓ 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

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include height: 0.562 INCHES MAXIMUM IN, material: STEEL OVERALL, shank_length: 0.125 INCHES NOMINAL IN, thread_class: 2A A, special_features: 4 PORT USB KVM WITH BONDED CABLES AND AUDIO, DDC2B COMPLIANT, RESOLUTION UP TO 1048 X 1536, style_designator: STRAIGHT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-050-4204, 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
522578
NSN: 4730-00-050-4204
FSC: 4730
CAGE: 00447 — WABCO CONSTRUCTION AND MINING EQUIPMENT GROUP INDIANAPOLIS PLANT AN AMERICAN STANDARD INC CO (USA)
SPECIFICATIONS
height0.562 INCHES MAXIMUM IN
materialSTEEL OVERALL
shank_length0.125 INCHES NOMINAL IN
thread_class2A A
special_features4 PORT USB KVM WITH BONDED CABLES AND AUDIO, DDC2B COMPLIANT, RESOLUTION UP TO 1048 X 1536
style_designatorSTRAIGHT
surface_treatmentZINC OVERALL
width_across_flats0.312 INCHES NOMINAL IN
nominal_thread_size0.312 INCHES IN
end_item_identificationUP TO FROU USB COMPUTERS
thread_quantity_per_inch32
screw_thread_series_designatorUNEF
NSN4730-00-050-4204
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 522578 · 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
•
WIDTH ACROSS FLATS: 0.312 INCHES NOMINAL IN
•
SCREW THREAD SERIES DESIGNATOR: UNEF
•
THREAD QUANTITY PER INCH: 32
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
HEIGHT: 0.562 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: STRAIGHT
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH ACROSS FLATS0.312 INCHES NOMINAL IN
SCREW THREAD SERIES DESIGNATORUNEF
THREAD QUANTITY PER INCH32
SPECIAL FEATURESSURFACE LOCATED BALL CHECK VALVE
NOMINAL THREAD SIZE0.312 INCHES IN
HEIGHT0.562 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORSTRAIGHT
SURFACE TREATMENTZINC OVERALL
THREAD CLASS2A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
4995195-7Interchangeable
interchangeable cross-reference
interchangeable
5063Interchangeable
interchangeable cross-reference
interchangeable
1762BInterchangeable
interchangeable cross-reference
interchangeable
407-00Interchangeable
interchangeable cross-reference
interchangeable
5064Interchangeable
interchangeable cross-reference
interchangeable
672054Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 522578?
522578 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 522578?
There are 17 known substitutes for 522578: 4995195-7, 5063, 1762B and 14 more. Substitute compatibility should be verified for your specific system.
Is 522578 still available?
522578 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