PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5409-S17-6-4Coupling Half,quick Disconnect

Danfoss Power Solutions II, Llc · NSN 4730-01-175-1135 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-175-1135 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-175-1135. Primary manufacturer part number: 5409-S17-6-4.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY FREE FROM MERCURY CONTAMINATION
  • Criticality Code Justification: ZZZY
  • 4 verified cross-references
  • Primary manufacturer: Danfoss Power Solutions II, Llc
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-175-1135, 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 Danfoss Power Solutions II, Llc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 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
NSN4730-01-175-1135
Primary Part Number5409-S17-6-4
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDanfoss Power Solutions II, Llc
StatusACTIVE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY FREE FROM MERCURY CONTAMINATION
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-01-175-5443 INTERCHANGEABLE
Adapter,straight,tube to Boss
4730-01-175-7075202220-16-16S INTERCHANGEABLE
Adapter,straight,tube to Boss
Danfoss Power Solutions II, Llc
4730-01-175-7076 INTERCHANGEABLE
Adapter,straight,tube to Boss
4730-01-175-7082 INTERCHANGEABLE
Coupling Half,self-Sealing
4730-01-176-6732 INTERCHANGEABLE
Nut,tube Coupling,reducing
4730-01-177-35185409-S14-6-8 INTERCHANGEABLE
Coupling Half,self-Sealing
Danfoss Power Solutions II, Llc
4730-01-178-8461 INTERCHANGEABLE
Tee,tube
4730-01-178-8463 INTERCHANGEABLE
Tee,tube
4730-01-178-8465 INTERCHANGEABLE
Reducer,tube
4730-01-178-8466202220-8-8S INTERCHANGEABLE
Adapter,straight,tube to Boss
Danfoss Power Solutions II, Llc
Cross-Reference Index
Part NumberManufacturer
5409-S17-6-4 Danfoss Power Solutions II, Llc (USA)
503-4556027 ITEM 17 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
2670-57ITEM17 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
503-4556027 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
Related Parts
4730-01-175-5443INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
4730-01-175-7075INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
202220-16-16S
4730-01-175-7076INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
4730-01-175-7082INTERCHANGEABLE
COUPLING HALF,SELF-SEALING
4730-01-176-6732INTERCHANGEABLE
NUT,TUBE COUPLING,REDUCING
4730-01-177-3518INTERCHANGEABLE
COUPLING HALF,SELF-SEALING
5409-S14-6-8
4730-01-178-8461INTERCHANGEABLE
TEE,TUBE
4730-01-178-8463INTERCHANGEABLE
TEE,TUBE
4730-01-178-8465INTERCHANGEABLE
REDUCER,TUBE
4730-01-178-8466INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
202220-8-8S
4730-01-179-5470INTERCHANGEABLE
COUPLING HALF,SELF-SEALING
4730-01-179-5471INTERCHANGEABLE
COUPLING HALF,SELF-SEALING

Frequently Asked Questions

What is NSN 4730-01-175-1135?

NSN 4730-01-175-1135 is a Coupling Half,quick Disconnect, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-175-1135?

NSN 4730-01-175-1135 has 4 cross-referenced part numbers: 5409-S17-6-4 (Danfoss Power Solutions II, Llc), 503-4556027 ITEM 17 (Huntington Ingalls Inc Div Newport News Shipbuilding), 2670-57ITEM17 (Huntington Ingalls Inc Div Newport News Shipbuilding), 503-4556027 (Huntington Ingalls Inc Div Newport News Shipbuilding).

What NSN replaces 4730-01-175-1135?

There are 12 known substitutes for 4730-01-175-1135: 4730-01-175-5443, 4730-01-175-7075, 4730-01-175-7076 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5409-S17-6-4?

Key specifications for 5409-S17-6-4: Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY FREE FROM MERCURY CONTAMINATION; Criticality Code Justification: ZZZY; Special Features: 3/8 INCH ODF,VARIOUS MATERIAL,END CONNECTION FLARED-FOR NAVY NUCLEAR PROPULSION PLANT PRODUCTS ONLY IN. 3 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