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WWC633TYPE1 ✓ 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: IRON BODY, overall_length: 4.375 INCHES NOMINAL IN, connection_type: UNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION, furnished_items: GASKET, connection_style: BARBED OR SERRATED END ALL ENDS, style_designator: MALE COUPLING HALF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-203-2998, 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
WWC633TYPE1
NSN: 4730-00-203-2998
FSC: 4730
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialIRON BODY
overall_length4.375 INCHES NOMINAL IN
connection_typeUNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
furnished_itemsGASKET
connection_styleBARBED OR SERRATED END ALL ENDS
style_designatorMALE COUPLING HALF
features_providedSELF-SEALING
surface_treatmentCADMIUM BODY
quick_disconnect_methodTWO LUG UNIVERSAL ALL ENDS
nondefinitive_spec/std_data1 TYPE
specification/standard_data58536 A-A-59553 GOVERNMENT SPECIFICATION A
furnished_items_and_quantity1 SEAL
NSN4730-00-203-2998
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: WWC633TYPE1 · 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
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE BODY
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
CONNECTION STYLE: BARBED OR SERRATED END ALL ENDS
•
CONNECTION TYPE: UNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.500 INCHES ALL ENDS IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A197 ASSN STD SINGLE MATERIAL RESPONSE BODY
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.500 INCHES ALL ENDS IN
STYLE DESIGNATORMALE COUPLING HALF
CONNECTION STYLEBARBED OR SERRATED END ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A197 ASSN STD SINGLE MATERIAL RESPONSE BODY
CONNECTION TYPEUNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
NONDEFINITIVE SPEC/STD DATA1 TYPE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 1 FED SPEC SINGLE TREATMENT RESPONSE BODY
QUICK DISCONNECT METHODTWO LUG UNIVERSAL ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
5003Interchangeable
interchangeable cross-reference
interchangeable
MODEL 3306 4000MInterchangeable
interchangeable cross-reference
interchangeable
3306Interchangeable
interchangeable cross-reference
interchangeable
FFB571TYPEA4Interchangeable
interchangeable cross-reference
interchangeable
USAF330-6Interchangeable
interchangeable cross-reference
interchangeable
STYLEAKMPTAMHInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WWC633TYPE1?
WWC633TYPE1 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace WWC633TYPE1?
There are 22 known substitutes for WWC633TYPE1: 5003, MODEL 3306 4000M, 3306 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for WWC633TYPE1?
WWC633TYPE1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-203-2998. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026