PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

99-998Valve,relief,pressure and Temper

Cecilware Corp Columware Div · NSN 4820-01-141-5023 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-141-5023 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-141-5023. Primary manufacturer part number: 99-998.
Features
  • Valve,relief,pressure and Temper — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Cecilware Corp Columware Div
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-141-5023, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Cecilware Corp Columware Div. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,relief,pressure and Temper
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersCecilware Corp Columware Div (CAGE 21692); Cecilware Corporation (CAGE 01137)
Technical Specifications
ParameterValue
NSN4820-01-141-5023
Primary Part Number99-998
Item NameValve,relief,pressure and Temper
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCecilware Corp Columware Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4140-01-322-708099998 INTERCHANGEABLE
Fan,centrifugal
Stewart & Stevenson Power Products Llc
7520-01-383-79387520-01-383-7938 INTERCHANGEABLE
Marker Assortment,tube Type
National Industries for the Blind
Cross-Reference Index
Part NumberManufacturer
99-998 Cecilware Corp Columware Div (USA)
99-998 Cecilware Corporation (USA)
Related Parts
4140-01-322-7080INTERCHANGEABLE
FAN,CENTRIFUGAL
99998
7520-01-383-7938INTERCHANGEABLE
MARKER ASSORTMENT,TUBE TYPE
7520-01-383-7938

Frequently Asked Questions

What is NSN 4820-01-141-5023?

NSN 4820-01-141-5023 is a Valve,relief,pressure and Temper, manufactured by Cecilware Corp Columware Div, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-141-5023?

NSN 4820-01-141-5023 has 2 cross-referenced part numbers: 99-998 (Cecilware Corp Columware Div), 99-998 (Cecilware Corporation).

What NSN replaces 4820-01-141-5023?

There are 2 known substitutes for 4820-01-141-5023: 4140-01-322-7080, 7520-01-383-7938. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com