PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12FNTXSSCap,tube

Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division · NSN 4730-00-781-8263 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-781-8263 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-781-8263. Primary manufacturer part number: 12FNTXSS.
Features
  • Cap,tube — FSC 4730
  • Material: STEEL COMP 316 OVERALL
  • Style Designator: CAP, TUBE, FLARED
  • Thread Direction: RIGHT-HAND INTERNAL
  • Thread Class: 2B INTERNAL
  • Surface Treatment: PASSIVATE OVERALL
  • Seat Angle: 37.0 DEGREES
  • Thread Series Designator: UN INTERNAL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Comp 316 Overall construction
General Description

The Cap,tube, cataloged under National Stock Number 4730-00-781-8263, 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 Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-781-8263
Primary Part Number12FNTXSS
Item NameCap,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
StatusCANCELLED
MaterialSTEEL COMP 316 OVERALL
Style DesignatorCAP, TUBE, FLARED
Thread DirectionRIGHT-HAND INTERNAL
Thread Class2B INTERNAL
Surface TreatmentPASSIVATE OVERALL
Seat Angle37.0 DEGREES
Thread Series DesignatorUN INTERNAL
Connection StylePRESSURE SEAL FLARED
Thread Quantity Per Inch12 INTERNAL
Tube Outside Diameter for Which Designed0.750 INCHES NOMINAL IN
Nominal Thread Size1.062 INCHES INTERNAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
4730-00-606-3825 INTERCHANGEABLE
Cap,tube
4730-01-044-2446 INTERCHANGEABLE
Cap,tube
4730-01-219-3111 INTERCHANGEABLE
Cap,tube
Cross-Reference Index
Part NumberManufacturer
12FNTXSS Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
12FNTXSS Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
MIL-DTL-18866 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS51532B12S Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
12FNTXSS Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA)
Related Parts
4730-00-606-3825INTERCHANGEABLE
CAP,TUBE
4730-01-044-2446INTERCHANGEABLE
CAP,TUBE
4730-01-219-3111INTERCHANGEABLE
CAP,TUBE

Frequently Asked Questions

What is NSN 4730-00-781-8263?

NSN 4730-00-781-8263 is a Cap,tube, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-781-8263?

NSN 4730-00-781-8263 has 5 cross-referenced part numbers: 12FNTXSS (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 12FNTXSS (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division), MIL-DTL-18866 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS51532B12S (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 12FNTXSS (Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters).

What NSN replaces 4730-00-781-8263?

There are 3 known substitutes for 4730-00-781-8263: 4730-00-606-3825, 4730-01-044-2446, 4730-01-219-3111. Verify interchangeability with system specifications before substitution.

What are the specifications of 12FNTXSS?

Key specifications for 12FNTXSS: Material: STEEL COMP 316 OVERALL; Style Designator: CAP, TUBE, FLARED; Thread Direction: RIGHT-HAND INTERNAL; Thread Class: 2B INTERNAL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-781-8263 still in active supply?

NSN 4730-00-781-8263 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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