PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

200-991Adapter,rebreather

Biomarine Inc · NSN 4220-01-240-6166 · FSC 4220 · No Item Name Available
Verified by PartsTable
NSN 4220-01-240-6166 — this item is cataloged by the U.S. Government under National Stock Number 4220-01-240-6166. Primary manufacturer part number: 200-991.
Features
  • Adapter,rebreather — FSC 4220
  • 2 verified cross-references
  • Primary manufacturer: Biomarine Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Adapter,rebreather, cataloged under National Stock Number 4220-01-240-6166, 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 Biomarine Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4220-01-240-6166
Primary Part Number200-991
Item NameAdapter,rebreather
FSC / FSG4220 / 42 — No Item Name Available
ManufacturerBiomarine Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5930-00-060-7633SM-B-192244-2 INTERCHANGEABLE
Switch,thermostatic
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5330-00-064-6919F244U00138 INTERCHANGEABLE
Gasket Set
Sealcraft Corporation
5910-00-079-590420-099-1 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated
5331-01-384-3045 INTERCHANGEABLE
O-Ring
5307-01-508-0161200991 INTERCHANGEABLE
Stud,plain
Dana Off Highway Products, Llc
Cross-Reference Index
Part NumberManufacturer
200-991 PRIMARY Biomarine Inc (USA)
200-991 Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip (USA)
Related Parts
5930-00-060-7633INTERCHANGEABLE
SWITCH,THERMOSTATIC
SM-B-192244-2
5330-00-064-6919INTERCHANGEABLE
GASKET SET
F244U00138
5910-00-079-5904INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
20-099-1
5331-01-384-3045INTERCHANGEABLE
O-RING
5307-01-508-0161INTERCHANGEABLE
STUD,PLAIN
200991

Frequently Asked Questions

What is NSN 4220-01-240-6166?

NSN 4220-01-240-6166 is a Adapter,rebreather, manufactured by Biomarine Inc, classified under FSC 4220 (No Item Name Available). Status: active.

What are the part numbers for NSN 4220-01-240-6166?

NSN 4220-01-240-6166 has 2 cross-referenced part numbers: 200-991 (Biomarine Inc), 200-991 (Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip).

What NSN replaces 4220-01-240-6166?

There are 5 known substitutes for 4220-01-240-6166: 5930-00-060-7633, 5330-00-064-6919, 5910-00-079-5904 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 200-991?

Key specifications for 200-991: End Item Identification: 4220-01-101-6899. 1 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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