PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

633-E-4IN-ALCoupling Half,quick Disconnect

Opw Fueling Components Inc. Div Opw Fueling Components · NSN 4730-00-649-7388 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-649-7388 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-649-7388. Primary manufacturer part number: 633-E-4IN-AL.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Nominal Inside Diameter Hose Accommodated: 4.000 INCHES ALL ENDS IN
  • Features Provided: SELF-SEALING
  • Specification/standard Data: 96906-MS27021 GOVERNMENT STANDARD
  • Leg Length: 4.250 INCHES MINIMUM IN
  • Connection Type: INTERNAL QUICK DISCONNECT ALL ENDS
  • Connection Style: BARBED OR SERRATED END ALL ENDS
  • Quick Disconnect Nominal Size: 4.312 INCHES ALL ENDS IN
Applications
  • Applications requiring Aluminum Alloy Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-649-7388, 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 16 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-649-7388
Primary Part Number633-E-4IN-AL
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerOpw Fueling Components Inc. Div Opw Fueling Components
StatusCANCELLED
Nominal Inside Diameter Hose Accommodated4.000 INCHES ALL ENDS IN
Features ProvidedSELF-SEALING
Specification/standard Data96906-MS27021 GOVERNMENT STANDARD
Leg Length4.250 INCHES MINIMUM IN
Connection TypeINTERNAL QUICK DISCONNECT ALL ENDS
Connection StyleBARBED OR SERRATED END ALL ENDS
Quick Disconnect Nominal Size4.312 INCHES ALL ENDS IN
Quick Disconnect MethodCAM-LOCKING ALL ENDS
Surface TreatmentANODIZE BODY
MaterialALUMINUM ALLOY BODY
Style DesignatorMALE COUPLING HALF
Mating End IdentificationO P W CORP,FEMALE ADAPTER PART NO.633DS,4 IN.SIZE IN
Connection TypeUNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6615-00-181-233444270 INTERCHANGEABLE
Gyroscope,displacement
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
4320-00-237-39491174-116 INTERCHANGEABLE
Diaphragm,pump
Gates Corporation
3433-00-357-76384E INTERCHANGEABLE
Tip,welding Torch
Dockson Corporation
4730-00-360-0592 INTERCHANGEABLE
Coupling Half,quick Disconnect
3433-00-377-22334E INTERCHANGEABLE
Spray Gun,metallizing
Oerlikon Metco Us Inc
1005-00-532-31734E INTERCHANGEABLE
Pin,hammer,stirrup
Colt's Manufacturing Company, Llc
4730-00-542-4030 INTERCHANGEABLE
Coupling Half,quick Disconnect
5905-00-549-28134E3833J INTERCHANGEABLE
Resistor,fixed,film
Sprague Electric Co World Hqs
4730-00-873-4535 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-938-7996 INTERCHANGEABLE
Coupling Half,quick Disconnect
Cross-Reference Index
Part NumberManufacturer
633-E-4IN-AL Opw Fueling Components Inc. Div Opw Fueling Components (USA)
400-E-AL Dvcc, Llc (USA)
MS27021-17 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
633E-4AL Opw Fueling Components Inc. Div Opw Fueling Components (USA)
AA59326II19 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
4730006497388 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
44270 Opw Fueling Components Inc. Div Opw Fueling Components (USA)
AA59326/2-9-A Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-59326/2 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA59326/2B-9-A-1 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
4E Ever Tite Coupling Co Inc (USA)
5590K18 Mcmaster-Carr Supply Co (USA)
400-E-AL Parker Hannifin Canada Div Fluid Connectors Canada (CAN)
MCD4125ITEM6 Quartermaster General (USA)
633-E-4IN-AL Dover Resources Inc Dba Opw Engineered Systems (USA)
633E-4AL Dover Resources Inc Dba Opw Engineered Systems (USA)
Related Parts
6615-00-181-2334INTERCHANGEABLE
GYROSCOPE,DISPLACEMENT
44270
4320-00-237-3949INTERCHANGEABLE
DIAPHRAGM,PUMP
1174-116
3433-00-357-7638INTERCHANGEABLE
TIP,WELDING TORCH
4E
4730-00-360-0592INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
3433-00-377-2233INTERCHANGEABLE
SPRAY GUN,METALLIZING
4E
1005-00-532-3173INTERCHANGEABLE
PIN,HAMMER,STIRRUP
4E
4730-00-542-4030INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
5905-00-549-2813INTERCHANGEABLE
RESISTOR,FIXED,FILM
4E3833J
4730-00-873-4535INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-938-7996INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-949-8291INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-079-3305INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT

Frequently Asked Questions

What is NSN 4730-00-649-7388?

NSN 4730-00-649-7388 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: cancelled.

What are the part numbers for NSN 4730-00-649-7388?

NSN 4730-00-649-7388 has 16 cross-referenced part numbers: 633-E-4IN-AL (Opw Fueling Components Inc. Div Opw Fueling Components), 400-E-AL (Dvcc, Llc), MS27021-17 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 633E-4AL (Opw Fueling Components Inc. Div Opw Fueling Components), AA59326II19 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 11 more.

What NSN replaces 4730-00-649-7388?

There are 12 known substitutes for 4730-00-649-7388: 6615-00-181-2334, 4320-00-237-3949, 3433-00-357-7638 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 633-E-4IN-AL?

Key specifications for 633-E-4IN-AL: Overall Length: 7.312 INCHES MINIMUM IN; Nominal Inside Diameter Hose Accommodated: 4.000 INCHES ALL ENDS IN; Features Provided: SELF-SEALING; Specification/standard Data: 96906-MS27021 GOVERNMENT STANDARD. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-649-7388 still in active supply?

NSN 4730-00-649-7388 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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