PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

108303Regulator,breathing Gas Pressure

Aqualung Usa, Inc · NSN 4220-01-586-5987 · FSC 4220 · No Item Name Available
Verified by PartsTable
NSN 4220-01-586-5987 — this item is cataloged by the U.S. Government under National Stock Number 4220-01-586-5987. Primary manufacturer part number: 108303.
Features
  • Regulator,breathing Gas Pressure — FSC 4220
  • 1 verified cross-reference
  • Primary manufacturer: Aqualung Usa, Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Regulator,breathing Gas Pressure, cataloged under National Stock Number 4220-01-586-5987, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4220-01-586-5987
Primary Part Number108303
Item NameRegulator,breathing Gas Pressure
FSC / FSG4220 / 42 — No Item Name Available
ManufacturerAqualung Usa, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5935-00-833-4589108-303-001 INTERCHANGEABLE
Plug,tip
Viking Technologies, Ltd.
5310-01-276-7483 INTERCHANGEABLE
Nut,plain,hexagon
6530-01-297-167900-1083-003-00 INTERCHANGEABLE
Clamp Bar,orthopedic Bed
Zimmer, Inc. Dba Z Hotel
5330-01-428-8775108303 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
108303 PRIMARY Aqualung Usa, Inc (USA)
Related Parts
5935-00-833-4589INTERCHANGEABLE
PLUG,TIP
108-303-001
5310-01-276-7483INTERCHANGEABLE
NUT,PLAIN,HEXAGON
6530-01-297-1679INTERCHANGEABLE
CLAMP BAR,ORTHOPEDIC BED
00-1083-003-00
5330-01-428-8775INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
108303

Frequently Asked Questions

What is NSN 4220-01-586-5987?

NSN 4220-01-586-5987 is a Regulator,breathing Gas Pressure, manufactured by Aqualung Usa, Inc, classified under FSC 4220 (No Item Name Available). Status: active.

What are the part numbers for NSN 4220-01-586-5987?

NSN 4220-01-586-5987 has 1 cross-referenced part number: 108303 (Aqualung Usa, Inc).

What NSN replaces 4220-01-586-5987?

There are 4 known substitutes for 4220-01-586-5987: 5935-00-833-4589, 5310-01-276-7483, 6530-01-297-1679 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 108303?

Key specifications for 108303: Special Features: COMPLETE; End Item Identification: PHOD REGULATOR; Part Name Assigned by Controlling Agency: CAP, RETAINER. 3 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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