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633A 1 INCH — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

633A 1 INCH: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: ALUMINUM AND ALUMINUM ALLOY BODY, leg_length: 0.703 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN, overall_length: 1.874 INCHES MINIMUM AND 1.938 INCHES MAXIMUM IN, connection_type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION, connection_style: PLAIN ALL ENDS, special_features: KEY RING LOOP WITH 0.188 IN. DIA HOLE ON HEX FLATS IN.

This part is cataloged in the U.S. Government catalog under NSN 4730-01-131-3846, 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
633A 1 INCH
NSN: 4730-01-131-3846
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81718 — OPW FUELING COMPONENTS INC. DIV OPW FUELING COMPONENTS (USA)
SPECIFICATIONS
materialALUMINUM AND ALUMINUM ALLOY BODY
leg_length0.703 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
overall_length1.874 INCHES MINIMUM AND 1.938 INCHES MAXIMUM IN
connection_typeTHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
connection_stylePLAIN ALL ENDS
special_featuresKEY RING LOOP WITH 0.188 IN. DIA HOLE ON HEX FLATS IN
style_designatorMALE COUPLING HALF
surface_treatmentANODIZE BODY
nominal_thread_size1.000 INCHES ALL ENDS IN
quick_disconnect_methodCAM-LOCKING ALL ENDS
thread_series_designatorNPT ALL ENDS
quick_disconnect_nominal_size1.422 INCHES ALL ENDS IN
NSN4730-01-131-3846
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 633A 1 INCH · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TYPE 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY
•
CONNECTION STYLE: PLAIN ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-601,ALLOY 56,COND T6,CLASS 1 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-601,ALLOY 40E,COND T5,CLASS 1 FED SPEC SINGLE MATERIAL RESPONSE BODY
•
QUICK DISCONNECT NOMINAL SIZE: 1.422 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY
CONNECTION STYLEPLAIN ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
CONNECTION TYPEINTERNAL QUICK DISCONNECT ALL ENDS
STYLE DESIGNATORMALE COUPLING HALF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-601,ALLOY 56,COND T6,CLASS 1 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-601,ALLOY 40E,COND T5,CLASS 1 FED SPEC SINGLE MATERIAL RESPONSE BODY
OVERALL LENGTH1.874 INCHES MINIMUM AND 1.938 INCHES MAXIMUM IN
QUICK DISCONNECT NOMINAL SIZE1.422 INCHES ALL ENDS IN
LEG LENGTH0.703 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
NOMINAL THREAD SIZE1.000 INCHES ALL ENDS IN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 633A 1 INCH?
633A 1 INCH is a COUPLING HALF,QUICK DISCONNECT.
What is the NSN for 633A 1 INCH?
633A 1 INCH is cataloged in the U.S. Government catalog under NSN 4730-01-131-3846. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.