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633A-0730 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

633A-0730: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, overall_length: 1.562 INCHES NOMINAL IN, connection_type: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF, nominal_thread_size: 1.250 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-225-2225, 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-0730
NSN: 4730-01-225-2225
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81718 — OPW FUELING COMPONENTS INC. DIV OPW FUELING COMPONENTS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
overall_length1.562 INCHES NOMINAL IN
connection_typeEXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
nominal_thread_size1.250 INCHES ALL ENDS IN
quick_disconnect_methodCAM-LOCKING ALL ENDS
thread_series_designatorNPT ALL ENDS
nondefinitive_spec/std_data1 TYPE
specification/standard_data81349-MIL-C-27487 GOVERNMENT SPECIFICATION
quick_disconnect_nominal_size1.250 INCHES ALL ENDS IN
NSN4730-01-225-2225
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 633A-0730 · 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: PLAIN ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
QUICK DISCONNECT NOMINAL SIZE: 1.250 INCHES ALL ENDS IN
•
NOMINAL THREAD SIZE: 1.250 INCHES ALL ENDS IN
•
SPECIFICATION/STANDARD DATA: 81349-MIL-C-27487 GOVERNMENT SPECIFICATION
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
CONNECTION TYPEEXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
STYLE DESIGNATORMALE COUPLING HALF
OVERALL LENGTH1.562 INCHES NOMINAL IN
QUICK DISCONNECT NOMINAL SIZE1.250 INCHES ALL ENDS IN
NOMINAL THREAD SIZE1.250 INCHES ALL ENDS IN
SPECIFICATION/STANDARD DATA81349-MIL-C-27487 GOVERNMENT SPECIFICATION
NONDEFINITIVE SPEC/STD DATA1 TYPE
MATERIALSTEEL CORROSION RESISTING BODY
SUBSTITUTES & CROSS-REFERENCES 4
10037476Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
633A-1-1/4SSSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
633AReference document
Same NSN cross-reference
Reference document — Secondary reference
125A-SSSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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-0730?
633A-0730 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 633A-0730?
There are 4 known substitutes for 633A-0730: 10037476, 633A-1-1/4SS, 633A and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 633A-0730?
633A-0730 is cataloged in the U.S. Government catalog under NSN 4730-01-225-2225. 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.