PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J640G03Cap,tube

General Electric Company · NSN 4730-01-356-8668 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-356-8668 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-356-8668. Primary manufacturer part number: J640G03.
Features
  • Cap,tube — FSC 4730
  • Connection Style: PLAIN (OPTIONAL END)
  • Style Designator: CAP, TUBE, FLARELESS
  • 4 verified cross-references
  • Primary manufacturer: General Electric Company
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Cap,tube, cataloged under National Stock Number 4730-01-356-8668, 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 General Electric Company. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN4730-01-356-8668
Primary Part NumberJ640G03
Item NameCap,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerGeneral Electric Company
StatusACTIVE
Connection StylePLAIN (OPTIONAL END)
Style DesignatorCAP, TUBE, FLARELESS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6640-00-409-85002130-10 INTERCHANGEABLE
Buret,laboratory
Corning Inc Dba Corning Incorporated Div Specialty Materials
6640-00-410-00002130-50 INTERCHANGEABLE
Buret,laboratory
Corning Inc Dba Corning Incorporated Div Specialty Materials
4730-01-200-416410034249-001 INTERCHANGEABLE
Elbow
Martin-Decker Totco, Inc Dba M/d Totco
Cross-Reference Index
Part NumberManufacturer
J640 General Electric Company (USA)
J378P03 AND J639P03 General Electric Company (USA)
J640G03 PRIMARY General Electric Company (USA)
J640G03 PRIMARY Acra Aerospace, Llc (USA)
Related Parts
6640-00-409-8500INTERCHANGEABLE
BURET,LABORATORY
2130-10
6640-00-410-0000INTERCHANGEABLE
BURET,LABORATORY
2130-50
4730-01-200-4164INTERCHANGEABLE
ELBOW
10034249-001

Frequently Asked Questions

What is NSN 4730-01-356-8668?

NSN 4730-01-356-8668 is a Cap,tube, manufactured by General Electric Company, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-356-8668?

NSN 4730-01-356-8668 has 4 cross-referenced part numbers: J640 (General Electric Company), J378P03 AND J639P03 (General Electric Company), J640G03 (General Electric Company), J640G03 (Acra Aerospace, Llc).

What NSN replaces 4730-01-356-8668?

There are 3 known substitutes for 4730-01-356-8668: 6640-00-409-8500, 6640-00-410-0000, 4730-01-200-4164. Verify interchangeability with system specifications before substitution.

What are the specifications of J640G03?

Key specifications for J640G03: Connection Style: PLAIN (OPTIONAL END); Style Designator: CAP, TUBE, FLARELESS. 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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