PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

872004-000Body,valve,breathing Apparatus

Undersea Systems International, Inc. Dba Ocean Technology Systems · NSN 4220-01-672-2918 · FSC 4220 · No Item Name Available
Verified by PartsTable
NSN 4220-01-672-2918 — this item is cataloged by the U.S. Government under National Stock Number 4220-01-672-2918. Primary manufacturer part number: 872004-000.
Features
  • Body,valve,breathing Apparatus — FSC 4220
  • 2 verified cross-references
  • Primary manufacturer: Undersea Systems International, Inc. Dba Ocean Technology Systems
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Body,valve,breathing Apparatus, cataloged under National Stock Number 4220-01-672-2918, 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 Undersea Systems International, Inc. Dba Ocean Technology Systems. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4220-01-672-2918
Primary Part Number872004-000
Item NameBody,valve,breathing Apparatus
FSC / FSG4220 / 42 — No Item Name Available
ManufacturerUndersea Systems International, Inc. Dba Ocean Technology Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5130-00-134-7602M1-8 INTERCHANGEABLE
Mandrel,fastener Installation to
Hi-Shear Corporation
5975-00-355-9219 INTERCHANGEABLE
Mounting Base,electrical Equipme
5120-00-541-180804-M-1/8 INTERCHANGEABLE
Holder,sheet Metal,hole
Us Air Tool Co., Inc.
4720-00-588-260713214E0776 INTERCHANGEABLE
Hose Assembly,metallic
Cecom Lr Center
5120-01-023-6511K-1/8 INTERCHANGEABLE
Holder,sheet Metal,hole
Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc
6625-01-110-4165P20.8 INTERCHANGEABLE
Ring,support
Cannon Instrument Company Dba Cannon Instrument Co, Inc
1005-01-420-5460M18 INTERCHANGEABLE
Mount,sight,small Arms
Laser Products
5305-01-518-393560-67199 INTERCHANGEABLE
Screw,machine
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
4330-01-685-7708M18 INTERCHANGEABLE
Filter Element,fluid
Interface Devices, Incorporated
3950-01-686-0264M18 INTERCHANGEABLE
Winch,drum,power Operated
Dover Resources Inc
Cross-Reference Index
Part NumberManufacturer
872004-000 PRIMARY Undersea Systems International, Inc. Dba Ocean Technology Systems (USA)
M18 Rfd (australia) Pty Ltd Survitec Group Australia (AUS)
Related Parts
5130-00-134-7602INTERCHANGEABLE
MANDREL,FASTENER INSTALLATION TO
M1-8
5975-00-355-9219INTERCHANGEABLE
MOUNTING BASE,ELECTRICAL EQUIPME
5120-00-541-1808INTERCHANGEABLE
HOLDER,SHEET METAL,HOLE
04-M-1/8
4720-00-588-2607INTERCHANGEABLE
HOSE ASSEMBLY,METALLIC
13214E0776
5120-01-023-6511INTERCHANGEABLE
HOLDER,SHEET METAL,HOLE
K-1/8
6625-01-110-4165INTERCHANGEABLE
RING,SUPPORT
P20.8
1005-01-420-5460INTERCHANGEABLE
MOUNT,SIGHT,SMALL ARMS
M18
5305-01-518-3935INTERCHANGEABLE
SCREW,MACHINE
60-67199
4330-01-685-7708INTERCHANGEABLE
FILTER ELEMENT,FLUID
M18
3950-01-686-0264INTERCHANGEABLE
WINCH,DRUM,POWER OPERATED
M18

Frequently Asked Questions

What is NSN 4220-01-672-2918?

NSN 4220-01-672-2918 is a Body,valve,breathing Apparatus, manufactured by Undersea Systems International, Inc. Dba Ocean Technology Systems, classified under FSC 4220 (No Item Name Available). Status: active.

What are the part numbers for NSN 4220-01-672-2918?

NSN 4220-01-672-2918 has 2 cross-referenced part numbers: 872004-000 (Undersea Systems International, Inc. Dba Ocean Technology Systems), M18 (Rfd (australia) Pty Ltd Survitec Group Australia).

What NSN replaces 4220-01-672-2918?

There are 10 known substitutes for 4220-01-672-2918: 5130-00-134-7602, 5975-00-355-9219, 5120-00-541-1808 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 872004-000?

Key specifications for 872004-000: Part Name Assigned by Controlling Agency: ONE WAY VALVE SEAT. 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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