PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21043-3Converter,liquid Oxygen

Mission Systems Orchard Park Inc · NSN 1660-00-445-9384 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-445-9384 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-445-9384. Primary manufacturer part number: 21043-3.
Features
  • Converter,liquid Oxygen — FSC 1660
  • Nondefinitive Spec/std Data: GCU12/A TYPE
  • 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; HANGER MTG; O/A DIM.,12.813 IN. LG,11.625 IN.W,9.938 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 1660-00-445-9384, 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 2 verified specifications, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1660-00-445-9384
Primary Part Number21043-3
Item NameConverter,liquid Oxygen
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerMission Systems Orchard Park Inc
StatusACTIVE
Nondefinitive Spec/std DataGCU12/A TYPE
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; HANGER MTG; O/A DIM.,12.813 IN. LG,11.625 IN.W,9.938 IN. DEEP; W/O SPARE PARTS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5330-00-012-35162-10433 INTERCHANGEABLE
Gasket
Pellerin Milnor Corporation
1660-00-062-272229061A4 INTERCHANGEABLE
Converter,liquid Oxygen
Mission Systems Davenport Inc.
1660-00-148-923910C-0021-5 INTERCHANGEABLE
Converter,liquid Oxygen
Essex Industries, Inc. Dba Essex Industries
1660-00-401-109618492 INTERCHANGEABLE
Converter,liquid Oxygen
Provision, Inc. Dba Provision Inc
1660-00-677-996721043-1 INTERCHANGEABLE
Converter,liquid Oxygen
Ingersoll-Rand Company Dba Ingersoll-Rand
5310-00-849-4770210-0434-00 INTERCHANGEABLE
Nut,plain,knurled
Tektronix, Inc.
1660-00-883-5733 INTERCHANGEABLE
Converter,liquid Oxygen
Cross-Reference Index
Part NumberManufacturer
21043-4 Mission Systems Orchard Park Inc (USA)
21043-3 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
MIL-C-25973 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
21043-4 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
21043-3 PRIMARY Mission Systems Orchard Park Inc (USA)
8148650 Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force (USA)
Related Parts
5330-00-012-3516INTERCHANGEABLE
GASKET
2-10433
1660-00-062-2722INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
29061A4
1660-00-148-9239INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
10C-0021-5
1660-00-401-1096INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
18492
1660-00-677-9967INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
21043-1
5310-00-849-4770INTERCHANGEABLE
NUT,PLAIN,KNURLED
210-0434-00
1660-00-883-5733INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN

Frequently Asked Questions

What is NSN 1660-00-445-9384?

NSN 1660-00-445-9384 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 1660-00-445-9384?

NSN 1660-00-445-9384 has 6 cross-referenced part numbers: 21043-4 (Mission Systems Orchard Park Inc), 21043-3 (Ingersoll-Rand Company Dba Ingersoll-Rand), MIL-C-25973 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 21043-4 (Ingersoll-Rand Company Dba Ingersoll-Rand), 21043-3 (Mission Systems Orchard Park Inc) and 1 more.

What NSN replaces 1660-00-445-9384?

There are 7 known substitutes for 1660-00-445-9384: 5330-00-012-3516, 1660-00-062-2722, 1660-00-148-9239 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21043-3?

Key specifications for 21043-3: Nondefinitive Spec/std Data: GCU12/A TYPE; 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; HANGER MTG; O/A DIM.,12.813 IN. LG,11.625 IN.W,9.938 IN. DEEP; W/O SPARE PARTS IN. 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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