PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

52991Diaphragm,valve,flat

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-00-924-0155 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-924-0155 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-924-0155. Primary manufacturer part number: 52991.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Material: RUBBER
  • 1 verified cross-reference
  • Primary manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc
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 4820-00-924-0155, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 1 verified specification, 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-924-0155
Primary Part Number52991
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
MaterialRUBBER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6210-00-067-8381 INTERCHANGEABLE
Lens,light
6210-00-548-0196A-6745-IR-Y-24 INTERCHANGEABLE
Light,panel
Grimes Aerospace Company
3120-01-438-7011 INTERCHANGEABLE
Bushing,sleeve
Cross-Reference Index
Part NumberManufacturer
52991 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
6210-00-067-8381INTERCHANGEABLE
LENS,LIGHT
6210-00-548-0196INTERCHANGEABLE
LIGHT,PANEL
A-6745-IR-Y-24
3120-01-438-7011INTERCHANGEABLE
BUSHING,SLEEVE

Frequently Asked Questions

What is NSN 4820-00-924-0155?

NSN 4820-00-924-0155 is a Diaphragm,valve,flat, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-924-0155?

NSN 4820-00-924-0155 has 1 cross-referenced part number: 52991 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-00-924-0155?

There are 3 known substitutes for 4820-00-924-0155: 6210-00-067-8381, 6210-00-548-0196, 3120-01-438-7011. Verify interchangeability with system specifications before substitution.

What are the specifications of 52991?

Key specifications for 52991: Material: RUBBER. 1 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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