PartsTable
Technical Data Sheet
633B-41L ✓ 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, leg_length: 1.500 INCHES NOMINAL IN, overall_length: 3.900 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN, connection_type: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-649-9118, 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
633B-41L
NSN: 4730-00-649-9118
FSC: 4730
CAGE: 81718 — OPW FUELING COMPONENTS INC. DIV OPW FUELING COMPONENTS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
leg_length1.500 INCHES NOMINAL IN
overall_length3.900 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN
connection_typeTHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
surface_treatmentANODIZE BODY
nominal_thread_size4.000 INCHES ALL ENDS IN
quick_disconnect_methodCAM-LOCKING ALL ENDS
thread_series_designatorNPT ALL ENDS
specification/standard_data96906-MS27026 GOVERNMENT STANDARD
quick_disconnect_nominal_size4.703 INCHES ALL ENDS IN
NSN4730-00-649-9118
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 633B-41L · 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
MATERIAL: ALUMINUM ALLOY BODY
QUICK DISCONNECT METHOD: CAM-LOCKING ALL ENDS
SURFACE TREATMENT: ANODIZE BODY
CONNECTION TYPE: INTERNAL QUICK DISCONNECT ALL ENDS
QUICK DISCONNECT NOMINAL SIZE: 4.703 INCHES ALL ENDS IN
NOMINAL THREAD SIZE: 4.000 INCHES ALL ENDS IN
CONNECTION STYLE: PLAIN ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH3.900 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY BODY
QUICK DISCONNECT METHODCAM-LOCKING ALL ENDS
SURFACE TREATMENTANODIZE BODY
CONNECTION TYPEINTERNAL QUICK DISCONNECT ALL ENDS
QUICK DISCONNECT NOMINAL SIZE4.703 INCHES ALL ENDS IN
NOMINAL THREAD SIZE4.000 INCHES ALL ENDS IN
CONNECTION STYLEPLAIN ALL ENDS
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
THREAD SERIES DESIGNATORNPT ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
633-BInterchangeable
interchangeable cross-reference
interchangeable
633-B-0190Interchangeable
interchangeable cross-reference
interchangeable
633B-AL60Interchangeable
interchangeable cross-reference
interchangeable
MS27030Interchangeable
interchangeable cross-reference
interchangeable
MS27030-7Interchangeable
interchangeable cross-reference
interchangeable
A-A-59326Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 633B-41L?
633B-41L is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 633B-41L?
There are 31 known substitutes for 633B-41L: 633-B, 633-B-0190, 633B-AL60 and 28 more. Substitute compatibility should be verified for your specific system.
Is 633B-41L still available?
633B-41L is currently cancelled.
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