PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21073-3Converter,liquid Oxygen

Mission Systems Orchard Park Inc · NSN 1660-00-775-5481 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-775-5481 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-775-5481. Primary manufacturer part number: 21073-3.
Features
  • Converter,liquid Oxygen — FSC 1660
  • General Characteristics Item Description: 70 PSI,OPERATING PRESSURE; AMBIENT AIR METHOD OF OXYGEN WARMING; 72 L PER MIN,OUTPUT CAPACITY; W/PRESSURE OPENING PRESSURE CLOSING VALVE; 1 RELIEF VALVE; W/CHECK VALVE; W/O PRESSURE GAGE; W/CAPACITANCE GAGING ELEMENT; BASE MTG; OVER-ALL DIM.,12.880 IN. LG,12.880 IN. W,12.820 IN. DEEP; W/O SPARE PARTS IN
  • 6 verified cross-references
  • Primary manufacturer: Mission Systems Orchard Park Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Converter,liquid Oxygen, cataloged under National Stock Number 1660-00-775-5481, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Mission Systems Orchard Park Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, 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
NSN1660-00-775-5481
Primary Part Number21073-3
Item NameConverter,liquid Oxygen
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerMission Systems Orchard Park Inc
StatusACTIVE
General Characteristics Item Description70 PSI,OPERATING PRESSURE; AMBIENT AIR METHOD OF OXYGEN WARMING; 72 L PER MIN,OUTPUT CAPACITY; W/PRESSURE OPENING PRESSURE CLOSING VALVE; 1 RELIEF VALVE; W/CHECK VALVE; W/O PRESSURE GAGE; W/CAPACITANCE GAGING ELEMENT; BASE MTG; OVER-ALL DIM.,12.880 IN. LG,12.880 IN. W,12.820 IN. DEEP; W/O SPARE PARTS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
1660-00-078-822710C-0005-11 INTERCHANGEABLE
Converter,liquid Oxygen
Essex Industries, Inc. Dba Essex Industries
3110-00-100-057333472 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
1660-00-540-5306 INTERCHANGEABLE
Converter,liquid Oxygen
1660-00-902-054310C-0005-10 INTERCHANGEABLE
Converter,liquid Oxygen
Essex Industries, Inc. Dba Essex Industries
Cross-Reference Index
Part NumberManufacturer
MILC25777B Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
GCU2A/A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-25666/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
21073-3 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
8148650 Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force (USA)
21073-3 PRIMARY Mission Systems Orchard Park Inc (USA)
Related Parts
1660-00-078-8227INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
10C-0005-11
3110-00-100-0573INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
33472
1660-00-540-5306INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
1660-00-902-0543INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
10C-0005-10

Frequently Asked Questions

What is NSN 1660-00-775-5481?

NSN 1660-00-775-5481 is a Converter,liquid Oxygen, manufactured by Mission Systems Orchard Park Inc, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-00-775-5481?

NSN 1660-00-775-5481 has 6 cross-referenced part numbers: MILC25777B (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), GCU2A/A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-25666/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 21073-3 (Ingersoll-Rand Company Dba Ingersoll-Rand), 8148650 (Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force) and 1 more.

What NSN replaces 1660-00-775-5481?

There are 4 known substitutes for 1660-00-775-5481: 1660-00-078-8227, 3110-00-100-0573, 1660-00-540-5306 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21073-3?

Key specifications for 21073-3: General Characteristics Item Description: 70 PSI,OPERATING PRESSURE; AMBIENT AIR METHOD OF OXYGEN WARMING; 72 L PER MIN,OUTPUT CAPACITY; W/PRESSURE OPENING PRESSURE CLOSING VALVE; 1 RELIEF VALVE; W/CHECK VALVE; W/O PRESSURE GAGE; W/CAPACITANCE GAGING ELEMENT; BASE MTG; OVER-ALL DIM.,12.880 IN. LG,12.880 IN. W,12.820 IN. DEEP; W/O SPARE PARTS IN. 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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