PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C402Union,tube

Kennecott Corp Chase Extrusions Div · NSN 4730-00-266-3899 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-266-3899 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-266-3899. Primary manufacturer part number: C402.
Features
  • Union,tube — FSC 4730
  • 17 verified cross-references
  • Primary manufacturer: Kennecott Corp Chase Extrusions Div
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Union,tube, cataloged under National Stock Number 4730-00-266-3899, 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 Kennecott Corp Chase Extrusions Div. This item has 17 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameUnion,tube
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersKennecott Corp Chase Extrusions Div (CAGE 11699); Nibco Inc (CAGE 12168); Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M (CAGE 81349); Mueller Brass Co. (CAGE 41947); Carrier Corp (CAGE 10855)
Technical Specifications
ParameterValue
NSN4730-00-266-3899
Primary Part NumberC402
Item NameUnion,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerKennecott Corp Chase Extrusions Div
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5935-00-081-374231-026-1020 INTERCHANGEABLE
Cover,electrical Connector
Amphenol Corporation Div Amphenol Rf
5950-00-083-660621965 INTERCHANGEABLE
Coil,radio Frequency
Prestolite Electric Inc
4730-00-088-8389 INTERCHANGEABLE
Union,tube
4730-00-088-8952 INTERCHANGEABLE
Union,pipe
6610-00-114-180263-3-12 INTERCHANGEABLE
Plate,mounting,rear
Aircraft Instruments Co
4730-00-189-2588 INTERCHANGEABLE
Union,pipe
4730-00-189-2592 INTERCHANGEABLE
Union,pipe
4730-00-189-2595 INTERCHANGEABLE
Union,pipe
4730-00-200-0311 INTERCHANGEABLE
Union,pipe
4730-00-248-9348 INTERCHANGEABLE
Union,pipe
Cross-Reference Index
Part NumberManufacturer
C402 Kennecott Corp Chase Extrusions Div (USA)
633 1-2 Nibco Inc (USA)
AA59617-29 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
C107 Mueller Brass Co. (USA)
733-1-2IN Nibco Inc (USA)
WRG95865 Carrier Corp (USA)
455178 Eastman Kodak Co (USA)
WWU516-29 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
402 Kennecott Corp Chase Extrusions Div (USA)
455718 Eastman Kodak Co Commercial & Government Systems (USA)
A-A-59617 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
11241335 Ballistic Missile Defense Systems Command (USA)
C402-5-8 Kennecott Corp Chase Extrusions Div (USA)
W8003 Mueller Brass Co. (USA)
3666 Bath Iron Works Corporation (USA)
A11202 Mueller Brass Co. (USA)
11241705-2 Ballistic Missile Defense Systems Command (USA)
Related Parts
5935-00-081-3742INTERCHANGEABLE
COVER,ELECTRICAL CONNECTOR
31-026-1020
5950-00-083-6606INTERCHANGEABLE
COIL,RADIO FREQUENCY
21965
4730-00-088-8389INTERCHANGEABLE
UNION,TUBE
4730-00-088-8952INTERCHANGEABLE
UNION,PIPE
6610-00-114-1802INTERCHANGEABLE
PLATE,MOUNTING,REAR
63-3-12
4730-00-189-2588INTERCHANGEABLE
UNION,PIPE
4730-00-189-2592INTERCHANGEABLE
UNION,PIPE
4730-00-189-2595INTERCHANGEABLE
UNION,PIPE
4730-00-200-0311INTERCHANGEABLE
UNION,PIPE
4730-00-248-9348INTERCHANGEABLE
UNION,PIPE
4730-00-248-9351INTERCHANGEABLE
UNION,PIPE
4730-00-266-3897INTERCHANGEABLE
UNION,TUBE

Frequently Asked Questions

What is NSN 4730-00-266-3899?

NSN 4730-00-266-3899 is a Union,tube, manufactured by Kennecott Corp Chase Extrusions Div, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-266-3899?

NSN 4730-00-266-3899 has 17 cross-referenced part numbers: C402 (Kennecott Corp Chase Extrusions Div), 633 1-2 (Nibco Inc), AA59617-29 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), C107 (Mueller Brass Co.), 733-1-2IN (Nibco Inc) and 12 more.

What NSN replaces 4730-00-266-3899?

There are 12 known substitutes for 4730-00-266-3899: 5935-00-081-3742, 5950-00-083-6606, 4730-00-088-8389 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 4730-00-266-3899 still in active supply?

NSN 4730-00-266-3899 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.
PartsTable Design LLC · partstable.com