PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1837Coupling Half,quick Disconnect

Milton Industries, Inc · NSN 4730-00-221-2138 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-221-2138 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-221-2138. Primary manufacturer part number: 1837.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • 27 verified cross-references
  • Primary manufacturer: Milton Industries, Inc
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-221-2138, 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 Milton Industries, Inc. This item has 27 commercial cross-references from 25 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersOshkosh Defense Llc (CAGE 75Q65); Hercules Engine Co Inc (CAGE 28265); Parker-Hannifin Corporation Div Quick Coupling Division (CAGE 97111); Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division (CAGE 78357); Pettibone Llc (CAGE 46717)
Technical Specifications
ParameterValue
NSN4730-00-221-2138
Primary Part Number1837
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilton Industries, Inc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-036-1773 INTERCHANGEABLE
Disk,valve
5355-00-055-7724143934-01 INTERCHANGEABLE
Mask,dial
Ge Aviation Systems Llc
5935-00-061-93095831275 INTERCHANGEABLE
Plug,tip
Naval Sea Systems Command
3110-00-156-34711837 INTERCHANGEABLE
Bearing,ball,annular
Skil Corp
4730-00-187-4202 INTERCHANGEABLE
Plug,pipe
4810-00-198-861119865 INTERCHANGEABLE
Connector,valve Ass
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
8110-00-222-30471800T01 INTERCHANGEABLE
Can,friction Top
Freund Container Div Div Berlin Packaging Llc
5930-00-228-546990-4168 INTERCHANGEABLE
Switch,rotary
Eaton Electrical Inc. Dba Cuttler Hmmer Cmrcl Cntrls Div Div Vehicle Controls Business Unit
3020-00-294-77771837 INTERCHANGEABLE
Gear,helical
Struthers Wells Corp
5920-00-501-1657104X109BA002 INTERCHANGEABLE
Fuse,cartridge
General Electric Co Speed Variator Products Operation
Cross-Reference Index
Part NumberManufacturer
3494179 Oshkosh Defense Llc (USA)
40-0000109 Hercules Engine Co Inc (USA)
H2E Parker-Hannifin Corporation Div Quick Coupling Division (USA)
31N6-6M Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division (USA)
L6460-1 Pettibone Llc (USA)
143934 Jenny Products, Inc (USA)
91341 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
FD40-1014-06-06 Satair A/s (DNK)
171SC0409000 Vme Americas Inc Sub of Vme Group N V (USA)
453 Textron Lycoming Inc Williamsport Plant (USA)
2105D13 Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
1837 PRIMARY Milton Industries, Inc (USA)
FD40-1014-06-06 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
143934 Davey Compressor Co Div of Keco Industries Inc (USA)
3494179 Oshkosh Corp (USA)
42-4 Foster Manufacturing Co, Inc. Dba Foster Manufacturing Co (USA)
91341 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
4730002212138 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
42 PRIMARY Tuthill Corp Hansen Coupling Div (USA)
A11255 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
Related Parts
4820-00-036-1773INTERCHANGEABLE
DISK,VALVE
5355-00-055-7724INTERCHANGEABLE
MASK,DIAL
143934-01
5935-00-061-9309INTERCHANGEABLE
PLUG,TIP
5831275
3110-00-156-3471INTERCHANGEABLE
BEARING,BALL,ANNULAR
1837
4730-00-187-4202INTERCHANGEABLE
PLUG,PIPE
4810-00-198-8611INTERCHANGEABLE
CONNECTOR,VALVE ASS
19865
8110-00-222-3047INTERCHANGEABLE
CAN,FRICTION TOP
1800T01
5930-00-228-5469INTERCHANGEABLE
SWITCH,ROTARY
90-4168
3020-00-294-7777INTERCHANGEABLE
GEAR,HELICAL
1837
5920-00-501-1657INTERCHANGEABLE
FUSE,CARTRIDGE
104X109BA002
5910-00-538-3597INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
18-37
3120-00-662-1622INTERCHANGEABLE
BUSHING,SLEEVE
9134-1

Frequently Asked Questions

What is NSN 4730-00-221-2138?

NSN 4730-00-221-2138 is a Coupling Half,quick Disconnect, manufactured by Milton Industries, Inc, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-221-2138?

NSN 4730-00-221-2138 has 27 cross-referenced part numbers: 3494179 (Oshkosh Defense Llc), 40-0000109 (Hercules Engine Co Inc), H2E (Parker-Hannifin Corporation Div Quick Coupling Division), 31N6-6M (Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division), L6460-1 (Pettibone Llc) and 22 more.

What NSN replaces 4730-00-221-2138?

There are 12 known substitutes for 4730-00-221-2138: 4820-00-036-1773, 5355-00-055-7724, 5935-00-061-9309 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 4730-00-221-2138 still in active supply?

NSN 4730-00-221-2138 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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