PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3100994Adapter,straight,pipe to Tube

Embraer S.a. · NSN 4730-00-277-6403 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-277-6403 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-277-6403. Primary manufacturer part number: 3100994.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Nominal Outside Diameter Tube Accommodated: 0.188 INCHES FIRST END IN
  • Seat Angle: 45.0 DEGREES FIRST END
  • Material Document and Classification: QQ-B-626,COMP 22,HALF HARD OR COMP 21 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Thread Series Designator: ANPT SECOND END
  • Thread Class: 3A FIRST END A
  • Connection Style: PLAIN (PIPE) SECOND END
  • Connection Style: INVERTED FLARE (TUBE) FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy 360 or Copper Alloy 377 Overall construction
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-277-6403, 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 Embraer S.a.. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 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
NSN4730-00-277-6403
Primary Part Number3100994
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerEmbraer S.a.
StatusCANCELLED
Nominal Outside Diameter Tube Accommodated0.188 INCHES FIRST END IN
Seat Angle45.0 DEGREES FIRST END
Material Document and ClassificationQQ-B-626,COMP 22,HALF HARD OR COMP 21 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorANPT SECOND END
Thread Class3A FIRST END A
Connection StylePLAIN (PIPE) SECOND END
Connection StyleINVERTED FLARE (TUBE) FIRST END
Thread Series DesignatorUNF FIRST END
Nominal Thread Size0.375 INCHES FIRST END IN
MaterialCOPPER ALLOY 360 OR COPPER ALLOY 377 OVERALL
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Nominal Overall Length0.938 INCHES IN
Maximum Operating Temp225.0 FAHRENHEIT SINGLE RESPONSE DEGF
Nominal Thread Size0.125 INCHES SECOND END IN
Media for Which DesignedFLUID SINGLE RESPONSE
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5950-00-058-4952 INTERCHANGEABLE
Transformer,power
5930-00-201-3290 INTERCHANGEABLE
Switch,push-Pull
4730-00-203-4681 INTERCHANGEABLE
Adapter,straight,pipe to Tube
5940-00-224-4340SCD7408CPT4 INTERCHANGEABLE
Terminal Box
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4730-00-246-9189 INTERCHANGEABLE
Elbow,pipe
4730-00-270-4619 INTERCHANGEABLE
Adapter,straight,pipe to Tube
4730-00-278-0830 INTERCHANGEABLE
Ferrule,brazing,tube Fitting
4730-00-278-083274962 INTERCHANGEABLE
Ferrule,brazing,tube Fitting
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
4730-00-278-0833 INTERCHANGEABLE
Ferrule,brazing,tube Fitting
4730-00-278-0837 INTERCHANGEABLE
Ferrule,brazing,tube Fitting
Cross-Reference Index
Part NumberManufacturer
3100994 Embraer S.a. (BRA)
7106 Raytheon Technical Services Company (USA)
3100994 Embraer Aviation International (FRA)
3100994 Embraer Empresa Brasileira De Aeronautica Sa (BRA)
123-70003-019 Safran Aerosystems Ex Safran Aerotechnics Oxy (FRA)
MIL-DTL-6001 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AN780-3 Aeronautical Standards Group Dept of Navy and Air Force (USA)
MIL-F-6001 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
7106 Cae Usa Inc. (USA)
Related Parts
5950-00-058-4952INTERCHANGEABLE
TRANSFORMER,POWER
5930-00-201-3290INTERCHANGEABLE
SWITCH,PUSH-PULL
4730-00-203-4681INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
5940-00-224-4340INTERCHANGEABLE
TERMINAL BOX
SCD7408CPT4
4730-00-246-9189INTERCHANGEABLE
ELBOW,PIPE
4730-00-270-4619INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4730-00-278-0830INTERCHANGEABLE
FERRULE,BRAZING,TUBE FITTING
4730-00-278-0832INTERCHANGEABLE
FERRULE,BRAZING,TUBE FITTING
74962
4730-00-278-0833INTERCHANGEABLE
FERRULE,BRAZING,TUBE FITTING
4730-00-278-0837INTERCHANGEABLE
FERRULE,BRAZING,TUBE FITTING
4730-00-278-5449INTERCHANGEABLE
NUT,TUBE COUPLING
4730-00-278-5453INTERCHANGEABLE
NUT,TUBE COUPLING

Frequently Asked Questions

What is NSN 4730-00-277-6403?

NSN 4730-00-277-6403 is a Adapter,straight,pipe to Tube, manufactured by Embraer S.a., classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-277-6403?

NSN 4730-00-277-6403 has 9 cross-referenced part numbers: 3100994 (Embraer S.a.), 7106 (Raytheon Technical Services Company), 3100994 (Embraer Aviation International), 3100994 (Embraer Empresa Brasileira De Aeronautica Sa), 123-70003-019 (Safran Aerosystems Ex Safran Aerotechnics Oxy) and 4 more.

What NSN replaces 4730-00-277-6403?

There are 12 known substitutes for 4730-00-277-6403: 5950-00-058-4952, 5930-00-201-3290, 4730-00-203-4681 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3100994?

Key specifications for 3100994: Nominal Outside Diameter Tube Accommodated: 0.188 INCHES FIRST END IN; Seat Angle: 45.0 DEGREES FIRST END; Material Document and Classification: QQ-B-626,COMP 22,HALF HARD OR COMP 21 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Series Designator: ANPT SECOND END. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-277-6403 still in active supply?

NSN 4730-00-277-6403 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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