PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12553583Coupling Half,quick Disconnect

United Defense, Lp · NSN 4730-01-355-5975 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-355-5975 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-355-5975. Primary manufacturer part number: 12553583.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Quick Disconnect Method: PUSH-PULL ALL ENDS
  • Leg Length: 1.250 INCHES NOMINAL IN
  • Nominal Inside Diameter Hose Accommodated: 2.250 INCHES ALL ENDS IN
  • Style Designator: MALE COUPLING HALF
  • Connection Style: BEADED ALL ENDS
  • Connection Type: UNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
  • Material: ALUMINUM ALLOY BODY
Applications
  • Applications requiring Aluminum Alloy Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-355-5975, 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 United Defense, Lp. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-355-5975
Primary Part Number12553583
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerUnited Defense, Lp
StatusACTIVE
Quick Disconnect MethodPUSH-PULL ALL ENDS
Leg Length1.250 INCHES NOMINAL IN
Nominal Inside Diameter Hose Accommodated2.250 INCHES ALL ENDS IN
Style DesignatorMALE COUPLING HALF
Connection StyleBEADED ALL ENDS
Connection TypeUNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
MaterialALUMINUM ALLOY BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
1610-00-127-598751124 INTERCHANGEABLE
Housing,thrust Bearing
Hamilton Sundstrand Corporation Dba Collins Aerospace
5331-00-395-6061051124 INTERCHANGEABLE
O-Ring
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
3110-00-874-26702614183-1 INTERCHANGEABLE
Bearing,ball,thrust
Skf Usa Inc.
4710-01-065-2205S220864 INTERCHANGEABLE
Tube Assembly,metal
Cnh Industrial America Llc Dba Cnh America
7510-01-251-7102101405 INTERCHANGEABLE
Ribbon,inking
Federal Marketing Co Div of Virginia Impression Products Inc
5998-01-446-297451124 INTERCHANGEABLE
Circuit Card Assembly
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
1010-01-487-245351124 INTERCHANGEABLE
Tray,loading,ammunition
American Apex Corporation
3110-01-645-417642555-113 INTERCHANGEABLE
Bearing,ball,thrust
Triumph Gear Systems Inc Dba Triumph Gear Systems Inc
Cross-Reference Index
Part NumberManufacturer
12553583 PRIMARY United Defense, Lp (USA)
8705-006 Parker Hannifin Corporation Dba Quick Coupling Div Div Quick Coupling Division Bruning Operation (USA)
8705-006 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division (USA)
12553583 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
51124 PRIMARY Transdigm Inc Div Adelwiggins Group (USA)
Related Parts
1610-00-127-5987INTERCHANGEABLE
HOUSING,THRUST BEARING
51124
5331-00-395-6061INTERCHANGEABLE
O-RING
051124
3110-00-874-2670INTERCHANGEABLE
BEARING,BALL,THRUST
2614183-1
4710-01-065-2205INTERCHANGEABLE
TUBE ASSEMBLY,METAL
S220864
7510-01-251-7102INTERCHANGEABLE
RIBBON,INKING
101405
5998-01-446-2974INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
51124
1010-01-487-2453INTERCHANGEABLE
TRAY,LOADING,AMMUNITION
51124
3110-01-645-4176INTERCHANGEABLE
BEARING,BALL,THRUST
42555-113

Frequently Asked Questions

What is NSN 4730-01-355-5975?

NSN 4730-01-355-5975 is a Coupling Half,quick Disconnect, manufactured by United Defense, Lp, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-355-5975?

NSN 4730-01-355-5975 has 5 cross-referenced part numbers: 12553583 (United Defense, Lp), 8705-006 (Parker Hannifin Corporation Dba Quick Coupling Div Div Quick Coupling Division Bruning Operation), 8705-006 (Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division), 12553583 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 51124 (Transdigm Inc Div Adelwiggins Group).

What NSN replaces 4730-01-355-5975?

There are 8 known substitutes for 4730-01-355-5975: 1610-00-127-5987, 5331-00-395-6061, 3110-00-874-2670 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12553583?

Key specifications for 12553583: Quick Disconnect Method: PUSH-PULL ALL ENDS; Leg Length: 1.250 INCHES NOMINAL IN; Nominal Inside Diameter Hose Accommodated: 2.250 INCHES ALL ENDS IN; Style Designator: MALE COUPLING HALF. 8 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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