PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

300-412Hose Connector-Exhale

Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip · NSN 4220-01-241-4905 · FSC 4220 · No Item Name Available
Verified by PartsTable
NSN 4220-01-241-4905 — this item is cataloged by the U.S. Government under National Stock Number 4220-01-241-4905. Primary manufacturer part number: 300-412.
Features
  • Hose Connector-Exhale — FSC 4220
  • General Characteristics Item Description: ANGLE FLOW 90 DEG; EXTERNAL THREADS ON FIRST END; FLANGE WITH 4 BOLT HOLES ON SECOND END
  • 4 verified cross-references
  • Primary manufacturer: Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose Connector-Exhale, cataloged under National Stock Number 4220-01-241-4905, 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 Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4220-01-241-4905
Primary Part Number300-412
Item NameHose Connector-Exhale
FSC / FSG4220 / 42 — No Item Name Available
ManufacturerMar-Vel International, Inc. Dba Mar-Vel Underwater Equip
StatusACTIVE
General Characteristics Item DescriptionANGLE FLOW 90 DEG; EXTERNAL THREADS ON FIRST END; FLANGE WITH 4 BOLT HOLES ON SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5910-00-284-5333PKM4S2P0RM5PCT INTERCHANGEABLE
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Cornell-Dubilier Marketing Inc
5325-00-298-70174002-21 INTERCHANGEABLE
Stud Assembly,turnlock Fastener
Howmet Global Fastening Systems Inc Div Camloc Products
5970-00-498-4043CG 3847-1 INTERCHANGEABLE
Insulator,washer
American Beryllia Inc
5815-01-016-2673400221 INTERCHANGEABLE
Teletypewriter Subassembly
Alnitak Corporation
4730-01-039-1222H859-3-4SS INTERCHANGEABLE
Adapter,straight,tube to Boss
Admiral Valve Llc Dba Cpv Manufacturing
3655-01-090-4415 INTERCHANGEABLE
Flange
6515-01-380-32353004-12 INTERCHANGEABLE
Support,cervical
Depuy Inc
5340-01-394-244940022-1 INTERCHANGEABLE
Bracket,angle
Morpac Industries, Inc Div Actuator
Cross-Reference Index
Part NumberManufacturer
300-412 Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip (USA)
400-221 Biomarine Inc (USA)
400-221 ITEM 21 Biomarine Inc (USA)
300-412 Biomarine Inc (USA)
Related Parts
5910-00-284-5333INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
PKM4S2P0RM5PCT
5325-00-298-7017INTERCHANGEABLE
STUD ASSEMBLY,TURNLOCK FASTENER
4002-21
5970-00-498-4043INTERCHANGEABLE
INSULATOR,WASHER
CG 3847-1
5815-01-016-2673INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
400221
4730-01-039-1222INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
H859-3-4SS
3655-01-090-4415INTERCHANGEABLE
FLANGE
6515-01-380-3235INTERCHANGEABLE
SUPPORT,CERVICAL
3004-12
5340-01-394-2449INTERCHANGEABLE
BRACKET,ANGLE
40022-1

Frequently Asked Questions

What is NSN 4220-01-241-4905?

NSN 4220-01-241-4905 is a Hose Connector-Exhale, manufactured by Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip, classified under FSC 4220 (No Item Name Available). Status: active.

What are the part numbers for NSN 4220-01-241-4905?

NSN 4220-01-241-4905 has 4 cross-referenced part numbers: 300-412 (Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip), 400-221 (Biomarine Inc), 400-221 ITEM 21 (Biomarine Inc), 300-412 (Biomarine Inc).

What NSN replaces 4220-01-241-4905?

There are 8 known substitutes for 4220-01-241-4905: 5910-00-284-5333, 5325-00-298-7017, 5970-00-498-4043 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 300-412?

Key specifications for 300-412: End Item Identification: 4220011016899; General Characteristics Item Description: ANGLE FLOW 90 DEG; EXTERNAL THREADS ON FIRST END; FLANGE WITH 4 BOLT HOLES ON SECOND END. 2 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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