PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21043-1Converter,liquid Oxygen

Ingersoll-Rand Company Dba Ingersoll-Rand · NSN 1660-00-677-9967 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-677-9967 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-677-9967. Primary manufacturer part number: 21043-1.
Features
  • Converter,liquid Oxygen — FSC 1660
  • Nondefinitive Spec/std Data: GCU-12/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
  • 4 verified cross-references
  • Primary manufacturer: Ingersoll-Rand Company Dba Ingersoll-Rand
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Converter,liquid Oxygen, cataloged under National Stock Number 1660-00-677-9967, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Ingersoll-Rand Company Dba Ingersoll-Rand. 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: Cancelled.

Technical Specifications
ParameterValue
NSN1660-00-677-9967
Primary Part Number21043-1
Item NameConverter,liquid Oxygen
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerIngersoll-Rand Company Dba Ingersoll-Rand
StatusCANCELLED
Nondefinitive Spec/std DataGCU-12/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 StatusCANCELLED
HAZMATNo
Verified Substitutes 12
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
5950-00-400-910221043 INTERCHANGEABLE
Transformer,pulse
Magnetika Inc
1660-00-401-109618492 INTERCHANGEABLE
Converter,liquid Oxygen
Provision, Inc. Dba Provision Inc
1660-00-445-938421043-3 INTERCHANGEABLE
Converter,liquid Oxygen
Mission Systems Orchard Park Inc
6685-00-480-6538210431 INTERCHANGEABLE
Needle,valve
Ideal Aerosmith Inc
5990-00-850-6603VCDX8-4J5L INTERCHANGEABLE
Synchro,differential Transmitter
General Dynamics Motion Control Llc
3439-00-870-9934 INTERCHANGEABLE
Electrode,cutting,solid
1660-00-883-5733 INTERCHANGEABLE
Converter,liquid Oxygen
6625-01-012-579721043 INTERCHANGEABLE
Tuning Unit,generator
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
Cross-Reference Index
Part NumberManufacturer
8148650 Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force (USA)
21043-1 PRIMARY Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
21043 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
Related Parts
1660-00-062-2722INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
29061A4
1660-00-148-9239INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
10C-0021-5
5950-00-400-9102INTERCHANGEABLE
TRANSFORMER,PULSE
21043
1660-00-401-1096INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
18492
1660-00-445-9384INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
21043-3
6685-00-480-6538INTERCHANGEABLE
NEEDLE,VALVE
210431
5990-00-850-6603INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
VCDX8-4J5L
3439-00-870-9934INTERCHANGEABLE
ELECTRODE,CUTTING,SOLID
1660-00-883-5733INTERCHANGEABLE
CONVERTER,LIQUID OXYGEN
6625-01-012-5797INTERCHANGEABLE
TUNING UNIT,GENERATOR
21043
5841-01-101-0998INTERCHANGEABLE
PANEL,BOTTOM REAR
21043
9330-01-267-0637INTERCHANGEABLE
PLASTIC SHEET,LAMINATED,DECORATI

Frequently Asked Questions

What is NSN 1660-00-677-9967?

NSN 1660-00-677-9967 is a Converter,liquid Oxygen, manufactured by Ingersoll-Rand Company Dba Ingersoll-Rand, classified under FSC 1660 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 1660-00-677-9967?

NSN 1660-00-677-9967 has 4 cross-referenced part numbers: 8148650 (Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force), 21043-1 (Ingersoll-Rand Company Dba Ingersoll-Rand), 21043 (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).

What NSN replaces 1660-00-677-9967?

There are 12 known substitutes for 1660-00-677-9967: 1660-00-062-2722, 1660-00-148-9239, 5950-00-400-9102 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21043-1?

Key specifications for 21043-1: Nondefinitive Spec/std Data: GCU-12/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.

Is NSN 1660-00-677-9967 still in active supply?

NSN 1660-00-677-9967 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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