PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-190909-3/8-8Adapter,straight,hose to Boss

Hydrasearch Company, Llc · NSN 4730-00-177-5966 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-177-5966 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-177-5966. Primary manufacturer part number: 4-190909-3/8-8.
Features
  • Adapter,straight,hose to Boss — FSC 4730
  • Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
  • Connection Style: GRIPPING NIPPLE (NOSE) FIRST END
  • Thread Series Designator: UNF SECOND END
  • Nominal Overall Length: 2.960 INCHES IN
  • Material Document and Classification: QQ-N-281 CLASS 1 OR B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Operating Pressure: 3500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Material: NICKEL ALLOY OVERALL
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 4730-00-177-5966, 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 Hydrasearch Company, Llc. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-177-5966
Primary Part Number4-190909-3/8-8
Item NameAdapter,straight,hose to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHydrasearch Company, Llc
StatusACTIVE
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
Connection StyleGRIPPING NIPPLE (NOSE) FIRST END
Thread Series DesignatorUNF SECOND END
Nominal Overall Length2.960 INCHES IN
Material Document and ClassificationQQ-N-281 CLASS 1 OR B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Operating Pressure3500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MaterialNICKEL ALLOY OVERALL
Nominal Outside Diameter Hose Accommodated0.970 INCHES FIRST END IN
Thread Class3A SECOND END A
Nominal Inside Diameter Hose Accommodated0.500 INCHES FIRST END IN
Furnished Items and Quantity1 HOSE COUPLING NUT
Thread Series DesignatorUNF SECOND END
Operating Pressure3500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size1.375 INCHES SECOND END IN
Nominal Outside Diameter Hose Accommodated0.970 INCHES FIRST END IN
MaterialNICKEL ALLOY OVERALL
Material Document and ClassificationQQ-N-281 CLASS 1 OR B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Overall Length2.960 INCHES IN
Furnished Items and Quantity1 HOSE COUPLING NUT
Connection TypeTHREADED EXTERNAL HOSE GRIPPING FIRST END
Maximum Operating Temp200.0 FAHRENHEIT SINGLE RESPONSE DEGF
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Nominal Inside Diameter Hose Accommodated0.500 INCHES FIRST END IN
Nominal Thread Size1.375 INCHES SECOND END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
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
4730-01-198-28014-190909-3/4-16 INTERCHANGEABLE
Adapter,straight,hose to Boss
Danfoss Power Solutions II, Llc
4730-01-334-2014 INTERCHANGEABLE
Adapter,straight,hose to Boss
Cross-Reference Index
Part NumberManufacturer
4-190909 3-8 8 Danfoss Power Solutions II, Llc (USA)
MIL-H-24135 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-F-24787/3 GRI TY C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4-190909-3/8-8 PRIMARY Hydrasearch Company, Llc (USA)
CMC-4-5602-3/8-08 Custom Hydraulic & Machine, Inc. Dba Custom Hydraulic & Machine Inc (USA)
4-190909-3/8-8 Danfoss Power Solutions II, Llc (USA)
4-190909 Danfoss Power Solutions II, Llc (USA)
Related Parts
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
4730-01-198-2801INTERCHANGEABLE
ADAPTER,STRAIGHT,HOSE TO BOSS
4-190909-3/4-16
4730-01-334-2014INTERCHANGEABLE
ADAPTER,STRAIGHT,HOSE TO BOSS

Frequently Asked Questions

What is NSN 4730-00-177-5966?

NSN 4730-00-177-5966 is a Adapter,straight,hose to Boss, manufactured by Hydrasearch Company, Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-177-5966?

NSN 4730-00-177-5966 has 7 cross-referenced part numbers: 4-190909 3-8 8 (Danfoss Power Solutions II, Llc), MIL-H-24135 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-F-24787/3 GRI TY C (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 4-190909-3/8-8 (Hydrasearch Company, Llc), CMC-4-5602-3/8-08 (Custom Hydraulic & Machine, Inc. Dba Custom Hydraulic & Machine Inc) and 2 more.

What NSN replaces 4730-00-177-5966?

There are 6 known substitutes for 4730-00-177-5966: 4730-01-119-0557, 4730-01-138-5937, 4730-01-142-9646 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4-190909-3/8-8?

Key specifications for 4-190909-3/8-8: Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Style: GRIPPING NIPPLE (NOSE) FIRST END; Thread Series Designator: UNF SECOND END; Nominal Overall Length: 2.960 INCHES IN. 24 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