PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8-FNTX-SSCap,tube

Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division · NSN 4730-01-491-8731 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-491-8731 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-491-8731. Primary manufacturer part number: 8-FNTX-SS.
Features
  • Cap,tube — FSC 4730
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • 2 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Cap,tube, cataloged under National Stock Number 4730-01-491-8731, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-491-8731
Primary Part Number8-FNTX-SS
Item NameCap,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4730-01-044-2446 INTERCHANGEABLE
Cap,tube
4730-01-608-8018AJ8Z-2 INTERCHANGEABLE
Cap,tube
Ssp Fittings Corp
4730-01-649-326429354 INTERCHANGEABLE
Insert,tube Fitting
Generac Mobile Products, Llc
Cross-Reference Index
Part NumberManufacturer
8-FNTX-SS Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
AJ8Z-2 Ssp Fittings Corp (USA)
Related Parts
4730-01-044-2446INTERCHANGEABLE
CAP,TUBE
4730-01-608-8018INTERCHANGEABLE
CAP,TUBE
AJ8Z-2
4730-01-649-3264INTERCHANGEABLE
INSERT,TUBE FITTING
29354

Frequently Asked Questions

What is NSN 4730-01-491-8731?

NSN 4730-01-491-8731 is a Cap,tube, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-491-8731?

NSN 4730-01-491-8731 has 2 cross-referenced part numbers: 8-FNTX-SS (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), AJ8Z-2 (Ssp Fittings Corp).

What NSN replaces 4730-01-491-8731?

There are 3 known substitutes for 4730-01-491-8731: 4730-01-044-2446, 4730-01-608-8018, 4730-01-649-3264. Verify interchangeability with system specifications before substitution.

What are the specifications of 8-FNTX-SS?

Key specifications for 8-FNTX-SS: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 2 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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