PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21071Converter,liquid Oxygen

Mission Systems Orchard Park Inc · NSN 1660-00-540-5251 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-540-5251 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-540-5251. Primary manufacturer part number: 21071.
Features
  • Converter,liquid Oxygen — FSC 1660
  • Nondefinitive Spec/std Data: GCU-3/1 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; TOP MTG; OVER-ALL DIM.,14.906 IN. LG,13.000 IN. W,13.250 IN. DEEP; W/O SPARE PARTS; NO SPECIAL FEATURES IN
  • 3 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 1660-00-540-5251, 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 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1660-00-540-5251
Primary Part Number21071
Item NameConverter,liquid Oxygen
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerMission Systems Orchard Park Inc
StatusACTIVE
Nondefinitive Spec/std DataGCU-3/1 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; TOP MTG; OVER-ALL DIM.,14.906 IN. LG,13.000 IN. W,13.250 IN. DEEP; W/O SPARE PARTS; NO SPECIAL FEATURES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3110-00-100-3586 INTERCHANGEABLE
Cone and Rollers,tapered Roller
4820-00-287-4183 INTERCHANGEABLE
Valve,gate
5962-01-096-4121MP270, MOD 7 INTERCHANGEABLE
Microcircuit,linear
Analogic Corp Data Conversion Products Div
5935-01-107-8816 INTERCHANGEABLE
Adapter,connector
4820-01-273-770521071 INTERCHANGEABLE
Diaphragm,valve,flat
Leslie Controls, Inc. Dba Leslie Controls Inc
4320-01-290-359721071 INTERCHANGEABLE
Adapter,shaft Subas
Parker Hannifin Corporation Div Hydraulic Systems Division
3120-01-322-2897 INTERCHANGEABLE
Bearing Set,sleeve
6150-01-582-4410 INTERCHANGEABLE
Bus,conductor
8305-01-621-8415WR24/3010/38 INTERCHANGEABLE
Cloth,woven Roving
Owens Corning
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)
21071 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
21071 PRIMARY Mission Systems Orchard Park Inc (USA)
Related Parts
3110-00-100-3586INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
4820-00-287-4183INTERCHANGEABLE
VALVE,GATE
5962-01-096-4121INTERCHANGEABLE
MICROCIRCUIT,LINEAR
MP270, MOD 7
5935-01-107-8816INTERCHANGEABLE
ADAPTER,CONNECTOR
4820-01-273-7705INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
21071
4320-01-290-3597INTERCHANGEABLE
ADAPTER,SHAFT SUBAS
21071
3120-01-322-2897INTERCHANGEABLE
BEARING SET,SLEEVE
6150-01-582-4410INTERCHANGEABLE
BUS,CONDUCTOR
8305-01-621-8415INTERCHANGEABLE
CLOTH,WOVEN ROVING
WR24/3010/38

Frequently Asked Questions

What is NSN 1660-00-540-5251?

NSN 1660-00-540-5251 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 1660-00-540-5251?

NSN 1660-00-540-5251 has 3 cross-referenced part numbers: 8148650 (Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force), 21071 (Ingersoll-Rand Company Dba Ingersoll-Rand), 21071 (Mission Systems Orchard Park Inc).

What NSN replaces 1660-00-540-5251?

There are 9 known substitutes for 1660-00-540-5251: 3110-00-100-3586, 4820-00-287-4183, 5962-01-096-4121 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21071?

Key specifications for 21071: Nondefinitive Spec/std Data: GCU-3/1 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; TOP MTG; OVER-ALL DIM.,14.906 IN. LG,13.000 IN. W,13.250 IN. DEEP; W/O SPARE PARTS; NO SPECIAL FEATURES 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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