PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51819-33Adapter,straight,pipe to Tube

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-00-003-5919 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-003-5919 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-003-5919. Primary manufacturer part number: MS51819-33.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Nominal Thread Size: 0.125 INCHES SECOND END IN
  • Nominal Thread Size: 0.438 INCHES FIRST END IN
  • Thread Series Designator: UNF FIRST END
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Material: STEEL OVERALL
  • Nominal Outside Diameter Tube Accommodated: 0.250 INCHES FIRST END IN
  • Surface Treatment Document and Classification: J514 ASSN STD SINGLE TREATMENT RESPONSE AND QQ-P-416, TY 2, CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-003-5919, 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 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 44 commercial cross-references from 28 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-003-5919
Primary Part NumberMS51819-33
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Nominal Thread Size0.125 INCHES SECOND END IN
Nominal Thread Size0.438 INCHES FIRST END IN
Thread Series DesignatorUNF FIRST END
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MaterialSTEEL OVERALL
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Surface Treatment Document and ClassificationJ514 ASSN STD SINGLE TREATMENT RESPONSE AND QQ-P-416, TY 2, CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Series DesignatorNPTF SECOND END
Nondefinitive Spec/std Data19A FIGURE A
Seat Angle12.0 DEGREES FIRST END
Specification/standard Data96906-MS51819 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nominal Overall Length1.120 INCHES IN
Thread Class2A FIRST END A
Connection StyleFLARELESS (TUBE) FIRST END
Maximum Operating Temp275.0 FAHRENHEIT SINGLE RESPONSE DEGF
Connection StylePLAIN (PIPE) SECOND END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5365-00-116-5221202774 INTERCHANGEABLE
Spacer,ring
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
5962-00-277-0289SN74145N INTERCHANGEABLE
Microcircuit,digital
Texas Instruments Incorporated
5330-00-318-4323 INTERCHANGEABLE
Gasket
8010-00-336-8551P413 INTERCHANGEABLE
Enamel
Heresite Saekaphen Inc
5340-00-546-60838705164 INTERCHANGEABLE
Plunger,quick Release
U S Army Tank Automotive Command Amsta-Im-Mm
2920-00-691-8765BRC-3003 INTERCHANGEABLE
Drive,engine,electrical Starter
Prestolite Electric Inc
6610-00-734-1427 INTERCHANGEABLE
Mechanism,rate of T
5920-01-018-2285A012-129 INTERCHANGEABLE
Fuse,enclosed Link
Nec America Inc
7510-01-083-335182054 INTERCHANGEABLE
Typing Element
Philips Information Systems Ltd
4310-01-100-3446033-318-01 INTERCHANGEABLE
Sleeve,pipe
Hatz Diesel of America Inc
Cross-Reference Index
Part NumberManufacturer
MS51819-33 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
J514 Sae International Dba Sae International (USA)
8205X4 Dana Corp Weatherhead Div (USA)
906120-4 Joy Global Underground Mining Llc (USA)
MS51819-3 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
P413 Bae Systems Land & Armaments L.p. (USA)
MS51819-3 Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
4-2 080102S BODYONLY Society of Automotive Engineers Inc (USA)
J514 Society of Automotive Engineers Inc (USA)
B1000C4 Lube Devices Inc Flodar Fluid Power Fittings Div (USA)
HR5413 Ecolaire Inc Baldwin-Hamilton Co Div (USA)
550-9-0631-04 Ward Hydraulics Div a-T-O Inc (USA)
4-2 0808102CA Sae International Dba Sae International (USA)
520419 Renk America Llc Div Renk America (USA)
MS51819-3 Danfoss Power Solutions II, Llc (USA)
92015002 Naval Inventory Control Point Mechanicsburg (USA)
MS51819-3 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
000-027-080 Dresser-Rand Holdings, Llc Dba Dresser-Rand Div Olean Operations (USA)
202774 Renk America Llc Div Renk America (USA)
MS51819-3 Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
Related Parts
5365-00-116-5221INTERCHANGEABLE
SPACER,RING
202774
5962-00-277-0289INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
SN74145N
5330-00-318-4323INTERCHANGEABLE
GASKET
8010-00-336-8551INTERCHANGEABLE
ENAMEL
P413
5340-00-546-6083INTERCHANGEABLE
PLUNGER,QUICK RELEASE
8705164
2920-00-691-8765INTERCHANGEABLE
DRIVE,ENGINE,ELECTRICAL STARTER
BRC-3003
6610-00-734-1427INTERCHANGEABLE
MECHANISM,RATE OF T
5920-01-018-2285INTERCHANGEABLE
FUSE,ENCLOSED LINK
A012-129
7510-01-083-3351INTERCHANGEABLE
TYPING ELEMENT
82054
4310-01-100-3446INTERCHANGEABLE
SLEEVE,PIPE
033-318-01
2910-01-118-8125INTERCHANGEABLE
PUMP,FUEL,ELECTRICAL
82093
5962-01-263-9407INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 4730-00-003-5919?

NSN 4730-00-003-5919 is a Adapter,straight,pipe to Tube, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-003-5919?

NSN 4730-00-003-5919 has 44 cross-referenced part numbers: MS51819-33 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), J514 (Sae International Dba Sae International), 8205X4 (Dana Corp Weatherhead Div), 906120-4 (Joy Global Underground Mining Llc), MS51819-3 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution) and 39 more.

What NSN replaces 4730-00-003-5919?

There are 12 known substitutes for 4730-00-003-5919: 5365-00-116-5221, 5962-00-277-0289, 5330-00-318-4323 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51819-33?

Key specifications for MS51819-33: Nominal Thread Size: 0.125 INCHES SECOND END IN; Nominal Thread Size: 0.438 INCHES FIRST END IN; Thread Series Designator: UNF FIRST END; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-003-5919 still in active supply?

NSN 4730-00-003-5919 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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