PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-190909-3/4-16Adapter,straight,hose to Boss

Danfoss Power Solutions II, Llc · NSN 4730-01-198-2801 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-198-2801 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-198-2801. Primary manufacturer part number: 4-190909-3/4-16.
Features
  • Adapter,straight,hose to Boss — FSC 4730
  • Connection Style: GRIPPING NIPPLE (NOSE) FIRST END
  • Material: NICKEL ALLOY OVERALL
  • Material Document and Classification: QQ-N-281,CLASS 3A FED SPEC SINGLE MATERIAL RESPONSE OVERALL A
  • Thread Class: 3A SECOND END A
  • Connection Type: THREADED EXTERNAL HOSE GRIPPING FIRST END
  • Connection Type: THREADED EXTERNAL BOSS SECOND END
  • Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Nickel Alloy Overall construction
General Description

The Adapter,straight,hose to Boss, cataloged under National Stock Number 4730-01-198-2801, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-198-2801
Primary Part Number4-190909-3/4-16
Item NameAdapter,straight,hose to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDanfoss Power Solutions II, Llc
StatusACTIVE
Connection StyleGRIPPING NIPPLE (NOSE) FIRST END
MaterialNICKEL ALLOY OVERALL
Material Document and ClassificationQQ-N-281,CLASS 3A FED SPEC SINGLE MATERIAL RESPONSE OVERALL A
Thread Class3A SECOND END A
Connection TypeTHREADED EXTERNAL HOSE GRIPPING FIRST END
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
Nominal Thread Size2.000 INCHES SECOND END IN
Thread Quantity Per Inch12 SECOND END
Furnished Items and Quantity1 PREFORMED PACKING
Thread Series DesignatorUN SECOND END
Nominal Outside Diameter Hose Accommodated2.750 INCHES FIRST END IN
Nominal Inside Diameter Hose Accommodated2.000 INCHES FIRST END IN
Nominal Overall Length4.090 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4730-00-177-59664-190909-3/8-8 INTERCHANGEABLE
Adapter,straight,hose to Boss
Hydrasearch Company, Llc
4730-00-928-4526 INTERCHANGEABLE
Adapter,straight,hose to Boss
4730-01-119-0557 INTERCHANGEABLE
Adapter,straight,hose to Boss
4730-01-138-5937FH9044-2432-41 INTERCHANGEABLE
Adapter,straight,hose to Boss
Danfoss Power Solutions II, Llc
4730-01-142-9646 INTERCHANGEABLE
Adapter,straight,hose to Boss
4730-01-166-1081 INTERCHANGEABLE
Adapter,straight,hose to Boss
4730-01-334-2014 INTERCHANGEABLE
Adapter,straight,hose to Boss
Cross-Reference Index
Part NumberManufacturer
4-190909 Danfoss Power Solutions II, Llc (USA)
4-190909-3/4-16 PRIMARY Danfoss Power Solutions II, Llc (USA)
CMC-4-5602-3/4-16 Custom Hydraulic & Machine, Inc. Dba Custom Hydraulic & Machine Inc (USA)
MIL-F-24787/3 GRI TY C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-177-5966INTERCHANGEABLE
ADAPTER,STRAIGHT,HOSE TO BOSS
4-190909-3/8-8
4730-00-928-4526INTERCHANGEABLE
ADAPTER,STRAIGHT,HOSE TO BOSS
4730-01-119-0557INTERCHANGEABLE
ADAPTER,STRAIGHT,HOSE TO BOSS
4730-01-138-5937INTERCHANGEABLE
ADAPTER,STRAIGHT,HOSE TO BOSS
FH9044-2432-41
4730-01-142-9646INTERCHANGEABLE
ADAPTER,STRAIGHT,HOSE TO BOSS
4730-01-166-1081INTERCHANGEABLE
ADAPTER,STRAIGHT,HOSE TO BOSS
4730-01-334-2014INTERCHANGEABLE
ADAPTER,STRAIGHT,HOSE TO BOSS

Frequently Asked Questions

What is NSN 4730-01-198-2801?

NSN 4730-01-198-2801 is a Adapter,straight,hose to Boss, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-198-2801?

NSN 4730-01-198-2801 has 4 cross-referenced part numbers: 4-190909 (Danfoss Power Solutions II, Llc), 4-190909-3/4-16 (Danfoss Power Solutions II, Llc), CMC-4-5602-3/4-16 (Custom Hydraulic & Machine, Inc. Dba Custom Hydraulic & Machine Inc), MIL-F-24787/3 GRI TY C (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4730-01-198-2801?

There are 7 known substitutes for 4730-01-198-2801: 4730-00-177-5966, 4730-00-928-4526, 4730-01-119-0557 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4-190909-3/4-16?

Key specifications for 4-190909-3/4-16: End Item Identification: 23N SHIP, OHIO CLASS SSN (TRIDENT).; Connection Style: GRIPPING NIPPLE (NOSE) FIRST END; Material: NICKEL ALLOY OVERALL; Material Document and Classification: QQ-N-281,CLASS 3A FED SPEC SINGLE MATERIAL RESPONSE OVERALL A. 15 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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