PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C9154ARetainer,disk,valve

Griswold Industries Dba Cla-Val Co · NSN 4820-00-790-4862 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-790-4862 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-790-4862. Primary manufacturer part number: C9154A.
Features
  • Retainer,disk,valve — FSC 4820
  • Outside Diameter: 1.500 INCHES NOMINAL IN
  • 6 verified cross-references
  • Primary manufacturer: Griswold Industries Dba Cla-Val Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Retainer,disk,valve, cataloged under National Stock Number 4820-00-790-4862, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Griswold Industries Dba Cla-Val Co. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-790-4862
Primary Part NumberC9154A
Item NameRetainer,disk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGriswold Industries Dba Cla-Val Co
StatusCANCELLED
Outside Diameter1.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5950-00-892-8312SM-C-450410 INTERCHANGEABLE
Reactor
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4820-01-355-0252 INTERCHANGEABLE
Retainer,disk,valve
Cross-Reference Index
Part NumberManufacturer
C9154 Griswold Industries Dba Cla-Val Co (USA)
C1954 Griswold Industries Dba Cla-Val Co (USA)
C9154A PRIMARY Griswold Industries Dba Cla-Val Co (USA)
4820PL1381569 Jednolity Indeks Materialowy - Uniform Material Index (POL)
S4824-3251772PC10A Naval Ship Systems Command (USA)
C6375PC10A Griswold Industries Dba Cla-Val Co (USA)
Related Parts
5950-00-892-8312INTERCHANGEABLE
REACTOR
SM-C-450410
4820-01-355-0252INTERCHANGEABLE
RETAINER,DISK,VALVE

Frequently Asked Questions

What is NSN 4820-00-790-4862?

NSN 4820-00-790-4862 is a Retainer,disk,valve, manufactured by Griswold Industries Dba Cla-Val Co, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-790-4862?

NSN 4820-00-790-4862 has 6 cross-referenced part numbers: C9154 (Griswold Industries Dba Cla-Val Co), C1954 (Griswold Industries Dba Cla-Val Co), C9154A (Griswold Industries Dba Cla-Val Co), 4820PL1381569 (Jednolity Indeks Materialowy - Uniform Material Index), S4824-3251772PC10A (Naval Ship Systems Command) and 1 more.

What NSN replaces 4820-00-790-4862?

There are 2 known substitutes for 4820-00-790-4862: 5950-00-892-8312, 4820-01-355-0252. Verify interchangeability with system specifications before substitution.

What are the specifications of C9154A?

Key specifications for C9154A: Special Features: MONEL;0.219 IN. THICK; 0.378 IN. DIA CENTER HOLE, GROOVED ON ONE SIDE 1.219 IN. OD, 0.500 IN. ID, 0.125 IN. THICK IN; Outside Diameter: 1.500 INCHES NOMINAL IN. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-790-4862 still in active supply?

NSN 4820-00-790-4862 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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