PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

504 1-2Adapter,straight,pipe to Tube

Nibco Inc · NSN 4730-00-053-0264 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-053-0264 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-053-0264. Primary manufacturer part number: 504 1-2.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Furnished Items and Quantity: 1 SHORT COUPLING NUT
  • Nominal Overall Length: 2.031 INCHES IN
  • Nominal Thread Size: 0.500 INCHES SECOND END IN
  • Material: COPPER ALLOY OVERALL
  • Thread Series Designator: UNF FIRST END
  • Nominal Outside Diameter Tube Accommodated: 0.625 INCHES FIRST END IN
  • Nominal Thread Size: 0.875 INCHES FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-053-0264, 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 Nibco Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN4730-00-053-0264
Primary Part Number504 1-2
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNibco Inc
StatusACTIVE
Furnished Items and Quantity1 SHORT COUPLING NUT
Nominal Overall Length2.031 INCHES IN
Nominal Thread Size0.500 INCHES SECOND END IN
MaterialCOPPER ALLOY OVERALL
Thread Series DesignatorUNF FIRST END
Nominal Outside Diameter Tube Accommodated0.625 INCHES FIRST END IN
Nominal Thread Size0.875 INCHES FIRST END IN
Thread Series DesignatorNPT SECOND END
Seat Angle45.0 DEGREES FIRST END
Thread Class2A FIRST END A
Connection StylePLAIN (PIPE) SECOND END
Connection StyleFLARED (TUBE) FIRST END
Nominal Pipe Size Accommodated0.500 INCHES SECOND END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5330-00-171-78864F6888 INTERCHANGEABLE
Seal,plain Encased
Caterpillar Inc Div Caterpillar Defense
4730-00-174-455112Z330PC30 INTERCHANGEABLE
Swing Joint,pipe
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-227-2871MS24464-12 INTERCHANGEABLE
Bearing,roller,needle
Sae International Dba Sae International
5120-00-264-3796 INTERCHANGEABLE
Wrench,adjustable
3030-00-649-9445490-3 INTERCHANGEABLE
Belts,v,matched Set
Gates Corporation
2520-00-929-541550412 INTERCHANGEABLE
Shaft,axle,automotive
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5950-00-999-4876 INTERCHANGEABLE
Transformer,power
6530-01-140-540350412 INTERCHANGEABLE
Pan and Screen Ir
Olympic Medical Corp
5940-01-248-621650412 INTERCHANGEABLE
Terminal Board
Wells Mfg Co
4820-01-657-8075504-700-12 INTERCHANGEABLE
Valve,angle
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
Cross-Reference Index
Part NumberManufacturer
504 1-2 Nibco Inc (USA)
Related Parts
5330-00-171-7886INTERCHANGEABLE
SEAL,PLAIN ENCASED
4F6888
4730-00-174-4551INTERCHANGEABLE
SWING JOINT,PIPE
12Z330PC30
3110-00-227-2871INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
MS24464-12
5120-00-264-3796INTERCHANGEABLE
WRENCH,ADJUSTABLE
3030-00-649-9445INTERCHANGEABLE
BELTS,V,MATCHED SET
490-3
2520-00-929-5415INTERCHANGEABLE
SHAFT,AXLE,AUTOMOTIVE
50412
5950-00-999-4876INTERCHANGEABLE
TRANSFORMER,POWER
6530-01-140-5403INTERCHANGEABLE
PAN AND SCREEN IR
50412
5940-01-248-6216INTERCHANGEABLE
TERMINAL BOARD
50412
4820-01-657-8075INTERCHANGEABLE
VALVE,ANGLE
504-700-12
4820-01-706-9526INTERCHANGEABLE
REPAIR KIT,VALVE
504-12

Frequently Asked Questions

What is NSN 4730-00-053-0264?

NSN 4730-00-053-0264 is a Adapter,straight,pipe to Tube, manufactured by Nibco Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-053-0264?

NSN 4730-00-053-0264 has 1 cross-referenced part number: 504 1-2 (Nibco Inc).

What NSN replaces 4730-00-053-0264?

There are 11 known substitutes for 4730-00-053-0264: 5330-00-171-7886, 4730-00-174-4551, 3110-00-227-2871 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 504 1-2?

Key specifications for 504 1-2: Furnished Items and Quantity: 1 SHORT COUPLING NUT; Nominal Overall Length: 2.031 INCHES IN; Nominal Thread Size: 0.500 INCHES SECOND END IN; Material: COPPER ALLOY OVERALL. 13 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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