PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

845-2445071ITEM11Coupling Half,self-Sealing

Naval Ship Systems Command · NSN 4730-01-180-0927 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-180-0927 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-180-0927. Primary manufacturer part number: 845-2445071ITEM11.
Features
  • Coupling Half,self-Sealing — FSC 4730
  • Thread Class: 2B ALL ENDS
  • Style Designator: MALE COUPLING HALF
  • Connection Style: BOSS GASKET SEAL ALL ENDS
  • Connection Type: THREADED INTERNAL BOSS FIRST FLUID END CONNECTION
  • Thread Series Designator: UN ALL ENDS
  • Material: COPPER ALLOY BODY
  • Thread Quantity Per Inch: 12 ALL ENDS
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Coupling Half,self-Sealing, cataloged under National Stock Number 4730-01-180-0927, 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 Naval Ship Systems Command. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 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: Active.

Technical Specifications
ParameterValue
NSN4730-01-180-0927
Primary Part Number845-2445071ITEM11
Item NameCoupling Half,self-Sealing
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Thread Class2B ALL ENDS
Style DesignatorMALE COUPLING HALF
Connection StyleBOSS GASKET SEAL ALL ENDS
Connection TypeTHREADED INTERNAL BOSS FIRST FLUID END CONNECTION
Thread Series DesignatorUN ALL ENDS
MaterialCOPPER ALLOY BODY
Thread Quantity Per Inch12 ALL ENDS
Nominal Thread Size1.312 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-051-4679 INTERCHANGEABLE
Coupling Half
5315-00-128-1210261A INTERCHANGEABLE
Pin,taper
Cotta Transmission Co Llc
6220-00-185-0425 INTERCHANGEABLE
Light,warning
4210-00-274-861402620005 INTERCHANGEABLE
Siamese Connection,fire Hose
Akron Brass Company
6930-00-346-7188267057 INTERCHANGEABLE
Accelermeter
Cae Usa Inc.
4730-00-477-5072A16447 INTERCHANGEABLE
Cap,tube
Mueller Brass Co.
4730-00-784-818126878 INTERCHANGEABLE
Coupling Half,self-Sealing
Triumph Thermal Systems - Maryland, Inc.
4730-01-157-7963 INTERCHANGEABLE
Adapter,straight,tube to Boss
4730-01-157-7964202220-4-4S INTERCHANGEABLE
Adapter,straight,tube to Boss
Danfoss Power Solutions II, Llc
4730-01-175-1135 INTERCHANGEABLE
Coupling Half,quick Disconnect
Cross-Reference Index
Part NumberManufacturer
845-2445071ITEM11 Naval Ship Systems Command (USA)
5400-S2-16 Danfoss Power Solutions II, Llc (USA)
5400-S2-16 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
2670-57 ITEM 11 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
2670-57 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
503-4556027 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
5400-S2-16B Danfoss Power Solutions II, Llc (USA)
261A Danfoss Power Solutions II, Llc (USA)
Related Parts
4730-00-051-4679INTERCHANGEABLE
COUPLING HALF
5315-00-128-1210INTERCHANGEABLE
PIN,TAPER
261A
6220-00-185-0425INTERCHANGEABLE
LIGHT,WARNING
4210-00-274-8614INTERCHANGEABLE
SIAMESE CONNECTION,FIRE HOSE
02620005
6930-00-346-7188INTERCHANGEABLE
ACCELERMETER
267057
4730-00-477-5072INTERCHANGEABLE
CAP,TUBE
A16447
4730-00-784-8181INTERCHANGEABLE
COUPLING HALF,SELF-SEALING
26878
4730-01-157-7963INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
4730-01-157-7964INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
202220-4-4S
4730-01-175-1135INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-175-5443INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
4730-01-175-7075INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
202220-16-16S

Frequently Asked Questions

What is NSN 4730-01-180-0927?

NSN 4730-01-180-0927 is a Coupling Half,self-Sealing, manufactured by Naval Ship Systems Command, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-180-0927?

NSN 4730-01-180-0927 has 8 cross-referenced part numbers: 845-2445071ITEM11 (Naval Ship Systems Command), 5400-S2-16 (Danfoss Power Solutions II, Llc), 5400-S2-16 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), 2670-57 ITEM 11 (Huntington Ingalls Inc Div Newport News Shipbuilding), 2670-57 (Huntington Ingalls Inc Div Newport News Shipbuilding) and 3 more.

What NSN replaces 4730-01-180-0927?

There are 12 known substitutes for 4730-01-180-0927: 4730-00-051-4679, 5315-00-128-1210, 6220-00-185-0425 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 845-2445071ITEM11?

Key specifications for 845-2445071ITEM11: Thread Class: 2B ALL ENDS; Style Designator: MALE COUPLING HALF; Connection Style: BOSS GASKET SEAL ALL ENDS; Connection Type: THREADED INTERNAL BOSS FIRST FLUID END CONNECTION. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com