PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0518-21Dip Tube,diving

Aqualung Usa, Inc · NSN 4220-01-305-8268 · FSC 4220 · No Item Name Available
Verified by PartsTable
NSN 4220-01-305-8268 — this item is cataloged by the U.S. Government under National Stock Number 4220-01-305-8268. Primary manufacturer part number: 0518-21.
Features
  • Dip Tube,diving — FSC 4220
  • 1 verified cross-reference
  • Primary manufacturer: Aqualung Usa, Inc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Dip Tube,diving, cataloged under National Stock Number 4220-01-305-8268, is classified within Federal Supply Class 4220 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Aqualung Usa, Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDip Tube,diving
FSC / FSG4220 — No Item Name Available (FSG 42)
ManufacturersAqualung Usa, Inc (CAGE 94120)
Technical Specifications
ParameterValue
NSN4220-01-305-8268
Primary Part Number0518-21
Item NameDip Tube,diving
FSC / FSG4220 / 42 — No Item Name Available
ManufacturerAqualung Usa, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5331-01-176-79158201-20 INTERCHANGEABLE
O-Ring
Aqualung Usa, Inc
7610-01-534-358962426 INTERCHANGEABLE
Card,set-Up,clinical
Sorenson Medical Inc.
5930-01-576-6007887B051821 INTERCHANGEABLE
Adapter,switch Actuator
L3 Technologies, Inc. Div L3 Keo
Cross-Reference Index
Part NumberManufacturer
0518-21 PRIMARY Aqualung Usa, Inc (USA)
Related Parts
5331-01-176-7915INTERCHANGEABLE
O-RING
8201-20
7610-01-534-3589INTERCHANGEABLE
CARD,SET-UP,CLINICAL
62426
5930-01-576-6007INTERCHANGEABLE
ADAPTER,SWITCH ACTUATOR
887B051821

Frequently Asked Questions

What is NSN 4220-01-305-8268?

NSN 4220-01-305-8268 is a Dip Tube,diving, manufactured by Aqualung Usa, Inc, classified under FSC 4220 (No Item Name Available). Status: active.

What are the part numbers for NSN 4220-01-305-8268?

NSN 4220-01-305-8268 has 1 cross-referenced part number: 0518-21 (Aqualung Usa, Inc).

What NSN replaces 4220-01-305-8268?

There are 3 known substitutes for 4220-01-305-8268: 5331-01-176-7915, 7610-01-534-3589, 5930-01-576-6007. Verify interchangeability with system specifications before substitution.

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