PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A104-103Inverted Nut,tube Coupling

Crane Carrier Company, Llc · NSN 4730-01-499-5071 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-499-5071 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-499-5071. Primary manufacturer part number: A104-103.
Features
  • Inverted Nut,tube Coupling — FSC 4730
  • Thread Direction: RIGHT-HAND
  • Style Designator: INVERTED NUT, TUBE, FLARE
  • Smallest Inside Diameter: 0.2188 INCHES NOMINAL IN
  • Screw Thread Series Designator: NPT
  • Width Across Flats: 1.0625 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Tube Outside Diameter for Which Designed: 0.250 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Fluid conveyance
  • Hydraulic system plumbing
General Description

The Inverted Nut,tube Coupling, cataloged under National Stock Number 4730-01-499-5071, 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 Crane Carrier Company, Llc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-499-5071
Primary Part NumberA104-103
Item NameInverted Nut,tube Coupling
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerCrane Carrier Company, Llc
StatusACTIVE
Thread DirectionRIGHT-HAND
Style DesignatorINVERTED NUT, TUBE, FLARE
Smallest Inside Diameter0.2188 INCHES NOMINAL IN
Screw Thread Series DesignatorNPT
Width Across Flats1.0625 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Tube Outside Diameter for Which Designed0.250 INCHES NOMINAL IN
Thread Size3/8-18
Casehardening IndicatorNOT CASEHARDENED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3110-00-100-0268527 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
1450-00-230-152710-4-103 INTERCHANGEABLE
End8yoke
Dana Light Axle Products, Llc Dba Dana Light Axle Products
6625-00-519-3493 INTERCHANGEABLE
Scale,cathode Ray Tube
5310-00-723-2906214188PC6 INTERCHANGEABLE
Washer,spring Tension
Naval Ship Systems Command
6130-01-272-900710-4103 INTERCHANGEABLE
Power Supply
Ruta Supplies Inc
4730-01-332-84883115 56 14 DOT INTERCHANGEABLE
Adapter,straight,pipe to Tube
Legris Inc
5210-01-337-7591104-103 INTERCHANGEABLE
Gage,depth,dial Indicating
Dyer Company, the
4310-01-354-8093104103 INTERCHANGEABLE
Compressor,reciprocating
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
4730-01-499-9176A104-105 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Crane Carrier Company, Llc
4730-01-503-7900104-104 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Crane Carrier Company, Llc
Cross-Reference Index
Part NumberManufacturer
104-103 Crane Carrier Company, Llc (USA)
A104-103 PRIMARY Crane Carrier Company, Llc (USA)
A104-101 Crane Carrier Company, Llc (USA)
Related Parts
3110-00-100-0268INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
527
1450-00-230-1527INTERCHANGEABLE
END8YOKE
10-4-103
6625-00-519-3493INTERCHANGEABLE
SCALE,CATHODE RAY TUBE
5310-00-723-2906INTERCHANGEABLE
WASHER,SPRING TENSION
214188PC6
6130-01-272-9007INTERCHANGEABLE
POWER SUPPLY
10-4103
4730-01-332-8488INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
3115 56 14 DOT
5210-01-337-7591INTERCHANGEABLE
GAGE,DEPTH,DIAL INDICATING
104-103
4310-01-354-8093INTERCHANGEABLE
COMPRESSOR,RECIPROCATING
104103
4730-01-499-9176INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
A104-105
4730-01-503-7900INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
104-104
4730-01-503-7906INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
104-155

Frequently Asked Questions

What is NSN 4730-01-499-5071?

NSN 4730-01-499-5071 is a Inverted Nut,tube Coupling, manufactured by Crane Carrier Company, Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-499-5071?

NSN 4730-01-499-5071 has 3 cross-referenced part numbers: 104-103 (Crane Carrier Company, Llc), A104-103 (Crane Carrier Company, Llc), A104-101 (Crane Carrier Company, Llc).

What NSN replaces 4730-01-499-5071?

There are 11 known substitutes for 4730-01-499-5071: 3110-00-100-0268, 1450-00-230-1527, 6625-00-519-3493 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A104-103?

Key specifications for A104-103: Thread Direction: RIGHT-HAND; Style Designator: INVERTED NUT, TUBE, FLARE; Smallest Inside Diameter: 0.2188 INCHES NOMINAL IN; Special Features: SOURCE CALLS ITEM A UNION, PIPE; CAN BE USED AS STRAIGHT ADAPTER EXTERNAL PIPE TO INTERNAL TUBE. 11 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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