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Technical Data Sheet
PartsTable / COMPONENT / 575R622H02
575R622H02 ✓ 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 material: ALUMINUM BODY, leg_length: 1.016 INCHES NOMINAL IN, seat_angle: 12.0 DEGREES, thread_class: 3A ALL ENDS A, overall_length: 2.547 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-756-1943, 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
575R622H02
NSN: 4730-00-756-1943
FSC: 4730
CAGE: 97942 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialALUMINUM BODY
leg_length1.016 INCHES NOMINAL IN
seat_angle12.0 DEGREES
thread_class3A ALL ENDS A
overall_length2.547 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
connection_styleFLARELESS ALL ENDS
style_designatorMALE COUPLING HALF
surface_treatmentANODIZE BODY
nominal_thread_size0.562 INCHES ALL ENDS IN
quick_disconnect_methodTWIST-LOCK ALL ENDS
thread_series_designatorUNF ALL ENDS
NSN4730-00-756-1943
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 575R622H02 · 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
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
THREAD SERIES DESIGNATOR: UNF ALL ENDS
•
CONNECTION TYPE: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
•
LEG LENGTH: 1.016 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.562 INCHES ALL ENDS IN
•
MATERIAL: ALUMINUM BODY
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORMALE COUPLING HALF
THREAD SERIES DESIGNATORUNF ALL ENDS
CONNECTION TYPEEXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
LEG LENGTH1.016 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.562 INCHES ALL ENDS IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
MATERIALALUMINUM BODY
OVERALL LENGTH2.547 INCHES NOMINAL IN
CONNECTION STYLEFLARELESS ALL ENDS
THREAD CLASS3A ALL ENDS A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
R248Interchangeable
interchangeable cross-reference
interchangeable
09-40566Interchangeable
interchangeable cross-reference
interchangeable
33026Interchangeable
interchangeable cross-reference
interchangeable
28023Interchangeable
interchangeable cross-reference
interchangeable
AA51146B-1A5BInterchangeable
interchangeable cross-reference
interchangeable
33.026Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 575R622H02?
575R622H02 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 575R622H02?
There are 13 known substitutes for 575R622H02: R248, 09-40566, 33026 and 10 more. Substitute compatibility should be verified for your specific system.
Is 575R622H02 still available?
575R622H02 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