PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1938-8Valve,expansion

Avaho Acquisition Corp Dba Impac · NSN 4820-01-147-4125 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-147-4125 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-147-4125. Primary manufacturer part number: 1938-8.
Features
  • Valve,expansion — FSC 4820
  • Flow Control Device: STEM AND INTEGRAL DISK
  • Material: COPPER ALLOY BODY
  • End Connection Quantity: 2
  • Media for Which Designed: REFRIGERANT
  • 1 verified cross-reference
  • Primary manufacturer: Avaho Acquisition Corp Dba Impac
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Body construction
General Description

The Valve,expansion, cataloged under National Stock Number 4820-01-147-4125, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Avaho Acquisition Corp Dba Impac. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN4820-01-147-4125
Primary Part Number1938-8
Item NameValve,expansion
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAvaho Acquisition Corp Dba Impac
StatusACTIVE
Flow Control DeviceSTEM AND INTEGRAL DISK
MaterialCOPPER ALLOY BODY
End Connection Quantity2
Media for Which DesignedREFRIGERANT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4810-00-083-410319388 INTERCHANGEABLE
Sleeve and Slide,directional Con
Mid-America Aerotech, Llc
5950-00-220-20251569783 INTERCHANGEABLE
Saturable Reactor
Us Army Aviation and Missile Command
5998-01-386-641319388 INTERCHANGEABLE
Circuit Card Assembly
Datum Inc Bancomm-Timing Div
6910-01-590-55201051-16-1 INTERCHANGEABLE
Bone,intraosseous Infusion Syste
Teleflex Llc
Cross-Reference Index
Part NumberManufacturer
1938-8 PRIMARY Avaho Acquisition Corp Dba Impac (USA)
Related Parts
4810-00-083-4103INTERCHANGEABLE
SLEEVE AND SLIDE,DIRECTIONAL CON
19388
5950-00-220-2025INTERCHANGEABLE
SATURABLE REACTOR
1569783
5998-01-386-6413INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
19388
6910-01-590-5520INTERCHANGEABLE
BONE,INTRAOSSEOUS INFUSION SYSTE
1051-16-1

Frequently Asked Questions

What is NSN 4820-01-147-4125?

NSN 4820-01-147-4125 is a Valve,expansion, manufactured by Avaho Acquisition Corp Dba Impac, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-147-4125?

NSN 4820-01-147-4125 has 1 cross-referenced part number: 1938-8 (Avaho Acquisition Corp Dba Impac).

What NSN replaces 4820-01-147-4125?

There are 4 known substitutes for 4820-01-147-4125: 4810-00-083-4103, 5950-00-220-2025, 5998-01-386-6413 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1938-8?

Key specifications for 1938-8: Flow Control Device: STEM AND INTEGRAL DISK; Material: COPPER ALLOY BODY; End Connection Quantity: 2; Media for Which Designed: REFRIGERANT. 4 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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