PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A1985Equalizer,valve,pre

Emerson Electric Co Alco Controls Div · NSN 4820-01-283-8250 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-283-8250 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-283-8250. Primary manufacturer part number: A1985.
Features
  • Equalizer,valve,pre — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Emerson Electric Co Alco Controls Div
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Equalizer,valve,pre, cataloged under National Stock Number 4820-01-283-8250, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Electric Co Alco Controls Div. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameEqualizer,valve,pre
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersEmerson Electric Co Alco Controls Div (CAGE 70255)
Technical Specifications
ParameterValue
NSN4820-01-283-8250
Primary Part NumberA1985
Item NameEqualizer,valve,pre
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Electric Co Alco Controls Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5315-00-071-5550RGR46AG INTERCHANGEABLE
Pin,aligning
Siemens Energy, Inc.
5325-00-926-7503A1985 INTERCHANGEABLE
Eyelet,metallic
Edwin B. Stimpson Company, Inc. Dba Stimpson
8455-01-572-9674 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-572-9678 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-648-0482 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-717-6528 INTERCHANGEABLE
Insignia,shoulder Sleeve
Cross-Reference Index
Part NumberManufacturer
A1985 PRIMARY Emerson Electric Co Alco Controls Div (USA)
Related Parts
5315-00-071-5550INTERCHANGEABLE
PIN,ALIGNING
RGR46AG
5325-00-926-7503INTERCHANGEABLE
EYELET,METALLIC
A1985
8455-01-572-9674INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-572-9678INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-648-0482INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-717-6528INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE

Frequently Asked Questions

What is NSN 4820-01-283-8250?

NSN 4820-01-283-8250 is a Equalizer,valve,pre, manufactured by Emerson Electric Co Alco Controls Div, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-283-8250?

NSN 4820-01-283-8250 has 1 cross-referenced part number: A1985 (Emerson Electric Co Alco Controls Div).

What NSN replaces 4820-01-283-8250?

There are 6 known substitutes for 4820-01-283-8250: 5315-00-071-5550, 5325-00-926-7503, 8455-01-572-9674 and 3 more. Verify interchangeability with system specifications before substitution.

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