PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M27296-02Valve Assembly,oxyg

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 1660-01-443-8133 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-01-443-8133 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-443-8133. Primary manufacturer part number: M27296-02.
Features
  • Valve Assembly,oxyg — FSC 1660
  • Specification/standard Data: 81349-MIL-V-27296 GOVERNMENT SPECIFICATION
  • Criticality Code Justification: FEAT
  • 4 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Assembly,oxyg, cataloged under National Stock Number 1660-01-443-8133, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1660-01-443-8133
Primary Part NumberM27296-02
Item NameValve Assembly,oxyg
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Specification/standard Data81349-MIL-V-27296 GOVERNMENT SPECIFICATION
Criticality Code JustificationFEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-223-936021-1-60 INTERCHANGEABLE
Pike,wire
W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center
1660-00-226-5334 INTERCHANGEABLE
Oxygen Mask Valve
8145-00-300-426521160 INTERCHANGEABLE
Shipping and Storag
L3harris Technologies, Inc. Div Space and Airborne Systems
5998-00-567-9443 INTERCHANGEABLE
Electronic Components Assembly
1660-00-783-5292 INTERCHANGEABLE
Valve,oxygen Mask
5950-01-109-833821160 INTERCHANGEABLE
Coil,electrical
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
1660-01-114-7208 INTERCHANGEABLE
Valve Assembly,oxygen Mask
2540-01-156-058416-2 INTERCHANGEABLE
Blade,windshield Wiper
Trico Products Corporation
5905-01-183-9170 INTERCHANGEABLE
Resistor,fixed,film
5970-01-277-435021160 INTERCHANGEABLE
Insulator,standoff
Science Applications International Corporation
Cross-Reference Index
Part NumberManufacturer
M27296-02 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-V-27296 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
211-60 Avox Systems Inc Dba Avox Systems Inc (USA)
211-60 Scott Technologies, Inc. (USA)
Related Parts
5120-00-223-9360INTERCHANGEABLE
PIKE,WIRE
21-1-60
1660-00-226-5334INTERCHANGEABLE
OXYGEN MASK VALVE
8145-00-300-4265INTERCHANGEABLE
SHIPPING AND STORAG
21160
5998-00-567-9443INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
1660-00-783-5292INTERCHANGEABLE
VALVE,OXYGEN MASK
5950-01-109-8338INTERCHANGEABLE
COIL,ELECTRICAL
21160
1660-01-114-7208INTERCHANGEABLE
VALVE ASSEMBLY,OXYGEN MASK
2540-01-156-0584INTERCHANGEABLE
BLADE,WINDSHIELD WIPER
16-2
5905-01-183-9170INTERCHANGEABLE
RESISTOR,FIXED,FILM
5970-01-277-4350INTERCHANGEABLE
INSULATOR,STANDOFF
21160
4320-01-304-6150INTERCHANGEABLE
SHAFT,TRANSMISSION,PUMP
21160
3110-01-353-4479INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER

Frequently Asked Questions

What is NSN 1660-01-443-8133?

NSN 1660-01-443-8133 is a Valve Assembly,oxyg, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-01-443-8133?

NSN 1660-01-443-8133 has 4 cross-referenced part numbers: M27296-02 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-V-27296 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 211-60 (Avox Systems Inc Dba Avox Systems Inc), 211-60 (Scott Technologies, Inc.).

What NSN replaces 1660-01-443-8133?

There are 12 known substitutes for 1660-01-443-8133: 5120-00-223-9360, 1660-00-226-5334, 8145-00-300-4265 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M27296-02?

Key specifications for M27296-02: Special Features: VALVE ASSEMBLY, OXYGEN MASK; CSC ITEM; SCOTT AVIATION ONLY; Specification/standard Data: 81349-MIL-V-27296 GOVERNMENT SPECIFICATION; Criticality Code Justification: FEAT. 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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