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Technical Data Sheet
PartsTable / COMPONENT / 134SCH122-123
134SCH122-123 ✓ 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 ALLOY BODY, seat_angle: 37.0 DEGREES, thread_class: 3A ALL ENDS A, overall_length: 2.655 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION, connection_style: FLARED ALL ENDS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-720-0890, 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
134SCH122-123
NSN: 4730-00-720-0890
FSC: 4730
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
seat_angle37.0 DEGREES
thread_class3A ALL ENDS A
overall_length2.655 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
connection_styleFLARED ALL ENDS
style_designatorMALE COUPLING HALF
features_providedSELF-SEALING
surface_treatmentANODIZE BODY
nominal_thread_size0.562 INCHES ALL ENDS IN
quick_disconnect_methodPUSH-PULL ALL ENDS
thread_series_designatorUNF ALL ENDS
NSN4730-00-720-0890
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 134SCH122-123 · 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
•
CONNECTION STYLE: FLARED ALL ENDS
•
QUICK DISCONNECT METHOD: PUSH-PULL ALL ENDS
•
THREAD CLASS: 3A ALL ENDS A
•
MATERIAL: ALUMINUM ALLOY BODY
•
SEAT ANGLE: 37.0 DEGREES
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
THREAD SERIES DESIGNATOR: UNF ALL ENDS
•
CONNECTION TYPE: INTERNAL QUICK DISCONNECT ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEFLARED ALL ENDS
QUICK DISCONNECT METHODPUSH-PULL ALL ENDS
THREAD CLASS3A ALL ENDS A
MATERIALALUMINUM ALLOY BODY
SEAT ANGLE37.0 DEGREES
STYLE DESIGNATORMALE COUPLING HALF
THREAD SERIES DESIGNATORUNF ALL ENDS
CONNECTION TYPEINTERNAL QUICK DISCONNECT ALL ENDS
NOMINAL THREAD SIZE0.562 INCHES ALL ENDS IN
OVERALL LENGTH2.655 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
34026Interchangeable
interchangeable cross-reference
interchangeable
A26063Interchangeable
interchangeable cross-reference
interchangeable
340J6Interchangeable
interchangeable cross-reference
interchangeable
B107.110 CAT 2 TY1Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-660 TY1CL1STAInterchangeable
interchangeable cross-reference
interchangeable
785568Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 134SCH122-123?
134SCH122-123 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 134SCH122-123?
There are 10 known substitutes for 134SCH122-123: 34026, A26063, 340J6 and 7 more. Substitute compatibility should be verified for your specific system.
Is 134SCH122-123 still available?
134SCH122-123 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