PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

633A-3/4ALCoupling Half,quick Disconnect

Opw Fueling Components Inc. Div Opw Fueling Components · NSN 4730-01-020-4762 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-020-4762 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-020-4762. Primary manufacturer part number: 633A-3/4AL.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Quick Disconnect Method: CAM-LOCKING ALL ENDS
  • Material Document and Classification: QQ-A-601,T6 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-601,T5 FED SPEC 2ND MATERIAL RESPONSE BODY
  • Nominal Thread Size: 0.750 INCHES ALL ENDS IN
  • Connection Style: PLAIN ALL ENDS
  • Surface Treatment Document and Classification: MIL-A-8625,TY 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY
  • Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION
  • Quick Disconnect Nominal Size: 1.250 INCHES ALL ENDS IN
Applications
  • Applications requiring Aluminum Alloy Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-020-4762, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Opw Fueling Components Inc. Div Opw Fueling Components. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-020-4762
Primary Part Number633A-3/4AL
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerOpw Fueling Components Inc. Div Opw Fueling Components
StatusACTIVE
Quick Disconnect MethodCAM-LOCKING ALL ENDS
Material Document and ClassificationQQ-A-601,T6 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-601,T5 FED SPEC 2ND MATERIAL RESPONSE BODY
Nominal Thread Size0.750 INCHES ALL ENDS IN
Connection StylePLAIN ALL ENDS
Surface Treatment Document and ClassificationMIL-A-8625,TY 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY
Connection TypeTHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
Quick Disconnect Nominal Size1.250 INCHES ALL ENDS IN
MaterialALUMINUM ALLOY BODY
Leg Length0.625 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
Style DesignatorMALE COUPLING HALF
Surface TreatmentANODIZE BODY
Thread Series DesignatorNPT ALL ENDS
Connection TypeEXTERNAL QUICK DISCONNECT ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-079-1362 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-079-1364 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-141-3195 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-516-4450 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-517-6827 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-840-0796 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-948-1719 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-01-007-5981 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-01-020-7204 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-01-021-6346 INTERCHANGEABLE
Coupling Half,quick Disconnect
Cross-Reference Index
Part NumberManufacturer
633A-3/4AL Opw Fueling Components Inc. Div Opw Fueling Components (USA)
633A3-4ALUM Dover Resources Inc Dba Opw Engineered Systems (USA)
75-A-AL Dvcc, Llc (USA)
633A-.75AL Opw Fueling Components Inc. Div Opw Fueling Components (USA)
AA59626/1-2-A Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
633A-3/4AL Dover Resources Inc Dba Opw Engineered Systems (USA)
633A-.75AL Dover Resources Inc Dba Opw Engineered Systems (USA)
6-04-046-116 Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters (USA)
A-A-59326 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
6-04-046-116 Selas Fluid Processing Corp T-Thermal Co Div (USA)
AA59326/1-2-A Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-59326/1 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
MS27020-3 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
633A3-4ALUM Opw Fueling Components Inc. Div Opw Fueling Components (USA)
AA59326I12 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
4730-00-079-1362INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-079-1364INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-141-3195INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-516-4450INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-517-6827INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-840-0796INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-948-1719INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-007-5981INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-020-7204INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-021-6346INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-073-5852INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-135-5587INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT

Frequently Asked Questions

What is NSN 4730-01-020-4762?

NSN 4730-01-020-4762 is a Coupling Half,quick Disconnect, manufactured by Opw Fueling Components Inc. Div Opw Fueling Components, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-020-4762?

NSN 4730-01-020-4762 has 15 cross-referenced part numbers: 633A-3/4AL (Opw Fueling Components Inc. Div Opw Fueling Components), 633A3-4ALUM (Dover Resources Inc Dba Opw Engineered Systems), 75-A-AL (Dvcc, Llc), 633A-.75AL (Opw Fueling Components Inc. Div Opw Fueling Components), AA59626/1-2-A (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 10 more.

What NSN replaces 4730-01-020-4762?

There are 12 known substitutes for 4730-01-020-4762: 4730-00-079-1362, 4730-00-079-1364, 4730-00-141-3195 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 633A-3/4AL?

Key specifications for 633A-3/4AL: Quick Disconnect Method: CAM-LOCKING ALL ENDS; Overall Length: 1.625 INCHES NOMINAL IN; Material Document and Classification: QQ-A-601,T6 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-601,T5 FED SPEC 2ND MATERIAL RESPONSE BODY; Nominal Thread Size: 0.750 INCHES ALL ENDS IN. 14 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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