PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

640D349Flange,pipe

Northrop Grumman Systems Corporation Div Marine Systems · NSN 4730-01-184-9485 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-184-9485 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-184-9485. Primary manufacturer part number: 640D349.
Features
  • Flange,pipe — FSC 4730
  • 6 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation Div Marine Systems
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Flange,pipe, cataloged under National Stock Number 4730-01-184-9485, 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 Northrop Grumman Systems Corporation Div Marine Systems. This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameFlange,pipe
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersNorthrop Grumman Systems Corporation Div Marine Systems (CAGE 90099); Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M (CAGE 81349); Tube Turns Technologies Inc (CAGE 78824)
Technical Specifications
ParameterValue
NSN4730-01-184-9485
Primary Part Number640D349
Item NameFlange,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Div Marine Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5998-00-020-02341558 INTERCHANGEABLE
Electronic Components Assembly
Mission Systems Davenport Inc.
4730-00-193-6973 INTERCHANGEABLE
Flange,pipe
5305-00-208-0364 INTERCHANGEABLE
Screw,machine
4730-00-256-8506 INTERCHANGEABLE
Flange,pipe
5915-00-296-0823SM-B-209721-1 INTERCHANGEABLE
Filter,radio Frequency Interfere
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5940-00-703-07091128B INTERCHANGEABLE
Terminal,stud
Goe Engineering Co Inc
4730-00-844-32671-6S0 INTERCHANGEABLE
Flange,pipe
Associated Steel Company
4730-00-845-4993 INTERCHANGEABLE
Flange,pipe
5905-01-098-70221558 INTERCHANGEABLE
Resistor
Crown Audio, Inc. Dba Crown International
5310-01-124-50982867 ITEM 17 INTERCHANGEABLE
Washer,special
Imi Cash Valve Inc
Cross-Reference Index
Part NumberManufacturer
640D349 Northrop Grumman Systems Corporation Div Marine Systems (USA)
MIL-F-18180C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1558 Tube Turns Technologies Inc (USA)
640D349 PC13 Northrop Grumman Systems Corporation Div Marine Systems (USA)
M18180/2-85A01D Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1558 Northrop Grumman Systems Corporation Div Marine Systems (USA)
Related Parts
5998-00-020-0234INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
1558
4730-00-193-6973INTERCHANGEABLE
FLANGE,PIPE
5305-00-208-0364INTERCHANGEABLE
SCREW,MACHINE
4730-00-256-8506INTERCHANGEABLE
FLANGE,PIPE
5915-00-296-0823INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
SM-B-209721-1
5940-00-703-0709INTERCHANGEABLE
TERMINAL,STUD
1128B
4730-00-844-3267INTERCHANGEABLE
FLANGE,PIPE
1-6S0
4730-00-845-4993INTERCHANGEABLE
FLANGE,PIPE
5905-01-098-7022INTERCHANGEABLE
RESISTOR
1558
5310-01-124-5098INTERCHANGEABLE
WASHER,SPECIAL
2867 ITEM 17
6625-01-131-8397INTERCHANGEABLE
MULTIMETER
1558
5305-01-157-1361INTERCHANGEABLE
SCREW,MACHINE
1558

Frequently Asked Questions

What is NSN 4730-01-184-9485?

NSN 4730-01-184-9485 is a Flange,pipe, manufactured by Northrop Grumman Systems Corporation Div Marine Systems, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-184-9485?

NSN 4730-01-184-9485 has 6 cross-referenced part numbers: 640D349 (Northrop Grumman Systems Corporation Div Marine Systems), MIL-F-18180C (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1558 (Tube Turns Technologies Inc), 640D349 PC13 (Northrop Grumman Systems Corporation Div Marine Systems), M18180/2-85A01D (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 4730-01-184-9485?

There are 12 known substitutes for 4730-01-184-9485: 5998-00-020-0234, 4730-00-193-6973, 5305-00-208-0364 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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