PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28093Diaphragm,valve,flat

Forenta Lp · NSN 4820-01-250-1982 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-250-1982 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-250-1982. Primary manufacturer part number: 28093.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Hole Diameter: 0.177 INCHES NOMINAL IN
  • Material: RUBBER
  • Outside Diameter: 2.330 INCHES NOMINAL IN
  • Bolt Hole Quantity: 6
  • Style Designator: FLAT
  • 1 verified cross-reference
  • Primary manufacturer: Forenta Lp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-250-1982, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Forenta Lp. Government technical data includes 5 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-250-1982
Primary Part Number28093
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerForenta Lp
StatusACTIVE
Hole Diameter0.177 INCHES NOMINAL IN
MaterialRUBBER
Outside Diameter2.330 INCHES NOMINAL IN
Bolt Hole Quantity6
Style DesignatorFLAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5905-00-233-7141 INTERCHANGEABLE
Resistor,fixed,film
2915-00-725-934128093 INTERCHANGEABLE
Guide,strainer
Collins Engine Nozzles, Inc
5320-00-889-892466230-5-9 INTERCHANGEABLE
Pin-Rivet
Sps Technologies, Llc Dba PB Fasteners
5910-01-094-509036D552G040AC2B INTERCHANGEABLE
Capacitor,fixed,electrolytic
Sprague Electric Co World Hqs
2540-01-187-65244216040 INTERCHANGEABLE
Mirror Assembly,rearview
Chrysler Corp Service and Parts Opns
5935-01-190-468884-10005 INTERCHANGEABLE
Connector,receptacle,electrical
Stewart-Warner Alemite Sales Co Inc
Cross-Reference Index
Part NumberManufacturer
28093 PRIMARY Forenta Lp (USA)
Related Parts
5905-00-233-7141INTERCHANGEABLE
RESISTOR,FIXED,FILM
2915-00-725-9341INTERCHANGEABLE
GUIDE,STRAINER
28093
5320-00-889-8924INTERCHANGEABLE
PIN-RIVET
66230-5-9
5910-01-094-5090INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
36D552G040AC2B
2540-01-187-6524INTERCHANGEABLE
MIRROR ASSEMBLY,REARVIEW
4216040
5935-01-190-4688INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
84-10005

Frequently Asked Questions

What is NSN 4820-01-250-1982?

NSN 4820-01-250-1982 is a Diaphragm,valve,flat, manufactured by Forenta Lp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-250-1982?

NSN 4820-01-250-1982 has 1 cross-referenced part number: 28093 (Forenta Lp).

What NSN replaces 4820-01-250-1982?

There are 6 known substitutes for 4820-01-250-1982: 5905-00-233-7141, 2915-00-725-9341, 5320-00-889-8924 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28093?

Key specifications for 28093: Hole Diameter: 0.177 INCHES NOMINAL IN; Material: RUBBER; Outside Diameter: 2.330 INCHES NOMINAL IN; Bolt Hole Quantity: 6. 5 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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