PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A2303-12-52PC118Coupling Half,quick Disconnect

Us Army Aviation and Missile Command · NSN 4730-00-639-9654 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-639-9654 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-639-9654. Primary manufacturer part number: A2303-12-52PC118.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Quick Disconnect Nominal Size: 0.375 INCHES ALL ENDS IN
  • Leg Length: 0.406 INCHES NOMINAL IN
  • Connection Style: PLAIN ALL ENDS
  • Thread Series Designator: NPTF ALL ENDS
  • Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION
  • Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS
  • Nominal Thread Size: 0.250 INCHES ALL ENDS IN
Applications
  • Applications requiring Steel Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-639-9654, 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 Us Army Aviation and Missile Command. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN4730-00-639-9654
Primary Part NumberA2303-12-52PC118
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerUs Army Aviation and Missile Command
StatusCANCELLED
Quick Disconnect Nominal Size0.375 INCHES ALL ENDS IN
Leg Length0.406 INCHES NOMINAL IN
Connection StylePLAIN ALL ENDS
Thread Series DesignatorNPTF ALL ENDS
Connection TypeTHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
Connection TypeEXTERNAL QUICK DISCONNECT ALL ENDS
Nominal Thread Size0.250 INCHES ALL ENDS IN
Style DesignatorMALE COUPLING HALF
MaterialSTEEL BODY
Surface TreatmentCADMIUM BODY
Features ProvidedSELF-SEALING
Quick Disconnect MethodTWIST-LOCK ALL ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5930-00-003-25112885038 INTERCHANGEABLE
Switch,thermostatic
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6850-00-155-644476759 INTERCHANGEABLE
Chemical Antigalling Cmpd
Loctite Corp
8345-00-233-3022 INTERCHANGEABLE
Flag,national
8345-00-245-2745 INTERCHANGEABLE
Flag,national
8345-00-245-2754 INTERCHANGEABLE
Flag,national
8345-00-264-2646 INTERCHANGEABLE
Flag,national
5950-00-372-00144032121-0701 INTERCHANGEABLE
Transformer,audio Frequency
Raytheon Company Dba Raytheon Co
6530-01-100-3602DYNJ92412 INTERCHANGEABLE
Drape,surgical
Medline Industries, Lp
5895-01-131-4084635-5 INTERCHANGEABLE
Keyboard,data Entry
Stromberg-Carlson Corp a Plessey Telecommunications Co
5365-01-194-0895 INTERCHANGEABLE
Spacer,ring
Cross-Reference Index
Part NumberManufacturer
6355 893 Mfg, Llc (USA)
CP16 Stewart-Warner Alemite Sales Co Inc (USA)
A2303-12-52PC118 PRIMARY Us Army Aviation and Missile Command (USA)
CP16 Stewart-Warner Alemite Corp (USA)
307116 Stewart-Warner Alemite Corp (USA)
Related Parts
5930-00-003-2511INTERCHANGEABLE
SWITCH,THERMOSTATIC
2885038
6850-00-155-6444INTERCHANGEABLE
CHEMICAL ANTIGALLING CMPD
76759
8345-00-233-3022INTERCHANGEABLE
FLAG,NATIONAL
8345-00-245-2745INTERCHANGEABLE
FLAG,NATIONAL
8345-00-245-2754INTERCHANGEABLE
FLAG,NATIONAL
8345-00-264-2646INTERCHANGEABLE
FLAG,NATIONAL
5950-00-372-0014INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
4032121-0701
6530-01-100-3602INTERCHANGEABLE
DRAPE,SURGICAL
DYNJ92412
5895-01-131-4084INTERCHANGEABLE
KEYBOARD,DATA ENTRY
635-5
5365-01-194-0895INTERCHANGEABLE
SPACER,RING
6530-01-321-3143INTERCHANGEABLE
PAD,BED LINEN PROTECTIVE
2520-01-362-1089INTERCHANGEABLE
PARTS KIT,UNIVERSAL JOINT
M674X

Frequently Asked Questions

What is NSN 4730-00-639-9654?

NSN 4730-00-639-9654 is a Coupling Half,quick Disconnect, manufactured by Us Army Aviation and Missile Command, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-639-9654?

NSN 4730-00-639-9654 has 5 cross-referenced part numbers: 6355 (893 Mfg, Llc), CP16 (Stewart-Warner Alemite Sales Co Inc), A2303-12-52PC118 (Us Army Aviation and Missile Command), CP16 (Stewart-Warner Alemite Corp), 307116 (Stewart-Warner Alemite Corp).

What NSN replaces 4730-00-639-9654?

There are 12 known substitutes for 4730-00-639-9654: 5930-00-003-2511, 6850-00-155-6444, 8345-00-233-3022 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A2303-12-52PC118?

Key specifications for A2303-12-52PC118: Overall Length: 1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN; Quick Disconnect Nominal Size: 0.375 INCHES ALL ENDS IN; Leg Length: 0.406 INCHES NOMINAL IN; Connection Style: PLAIN ALL ENDS. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-639-9654 still in active supply?

NSN 4730-00-639-9654 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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