PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C3028CRetainer,disk,valve

Griswold Industries Dba Cla-Val Co · NSN 4820-01-255-9042 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-255-9042 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-255-9042. Primary manufacturer part number: C3028C.
Features
  • Retainer,disk,valve — FSC 4820
  • Material: COPPER ALLOY
  • Valve Design Control Activity: 86184
  • 2 verified cross-references
  • Primary manufacturer: Griswold Industries Dba Cla-Val Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy construction
General Description

The Retainer,disk,valve, cataloged under National Stock Number 4820-01-255-9042, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-255-9042
Primary Part NumberC3028C
Item NameRetainer,disk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGriswold Industries Dba Cla-Val Co
StatusACTIVE
MaterialCOPPER ALLOY
Valve Design Control Activity86184
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-01-285-3482C-3028 INTERCHANGEABLE
Screw,jack
Lockheed Martin Corporation Div Rms
Cross-Reference Index
Part NumberManufacturer
C3028C PRIMARY Griswold Industries Dba Cla-Val Co (USA)
C3028 Griswold Industries Dba Cla-Val Co (USA)
Related Parts
5305-01-285-3482INTERCHANGEABLE
SCREW,JACK
C-3028

Frequently Asked Questions

What is NSN 4820-01-255-9042?

NSN 4820-01-255-9042 is a Retainer,disk,valve, manufactured by Griswold Industries Dba Cla-Val Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-255-9042?

NSN 4820-01-255-9042 has 2 cross-referenced part numbers: C3028C (Griswold Industries Dba Cla-Val Co), C3028 (Griswold Industries Dba Cla-Val Co).

What NSN replaces 4820-01-255-9042?

There is 1 known substitute for 4820-01-255-9042: 5305-01-285-3482. Verify interchangeability with system specifications before substitution.

What are the specifications of C3028C?

Key specifications for C3028C: Material: COPPER ALLOY; Valve Design Control Activity: 86184. 2 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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