PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19626Valve Assembly,environmental Con

Mission Systems Orchard Park Inc · NSN 1660-00-943-4978 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-943-4978 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-943-4978. Primary manufacturer part number: 19626.
Features
  • Valve Assembly,environmental Con — FSC 1660
  • General Characteristics Item Description: METAL
  • 2 verified cross-references
  • Primary manufacturer: Mission Systems Orchard Park Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Assembly,environmental Con, cataloged under National Stock Number 1660-00-943-4978, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN1660-00-943-4978
Primary Part Number19626
Item NameValve Assembly,environmental Con
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerMission Systems Orchard Park Inc
StatusCANCELLED
General Characteristics Item DescriptionMETAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5315-00-083-403219626 INTERCHANGEABLE
Key,retaining
Mid-America Aerotech, Llc
5360-01-049-1934 INTERCHANGEABLE
Spring
3455-01-065-965719626 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
5305-01-273-940319626 INTERCHANGEABLE
Screw,cap,socket Head
Sps Technologies, Llc Dba PB Fasteners
Cross-Reference Index
Part NumberManufacturer
19626 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
19626 PRIMARY Mission Systems Orchard Park Inc (USA)
Related Parts
5315-00-083-4032INTERCHANGEABLE
KEY,RETAINING
19626
5360-01-049-1934INTERCHANGEABLE
SPRING
3455-01-065-9657INTERCHANGEABLE
REAMER,MACHINE
19626
5305-01-273-9403INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
19626

Frequently Asked Questions

What is NSN 1660-00-943-4978?

NSN 1660-00-943-4978 is a Valve Assembly,environmental Con, manufactured by Mission Systems Orchard Park Inc, classified under FSC 1660 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 1660-00-943-4978?

NSN 1660-00-943-4978 has 2 cross-referenced part numbers: 19626 (Ingersoll-Rand Company Dba Ingersoll-Rand), 19626 (Mission Systems Orchard Park Inc).

What NSN replaces 1660-00-943-4978?

There are 4 known substitutes for 1660-00-943-4978: 5315-00-083-4032, 5360-01-049-1934, 3455-01-065-9657 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 19626?

Key specifications for 19626: General Characteristics Item Description: METAL. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 1660-00-943-4978 still in active supply?

NSN 1660-00-943-4978 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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