PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D-2505Diaphragm,valve,flat

Aalberts Integrated Piping Systems Americas, Inc. · NSN 4820-01-440-1340 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-440-1340 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-440-1340. Primary manufacturer part number: D-2505.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Material: RUBBER AND PLASTIC POLYAMIDE NYLON
  • Style Designator: FLAT
  • 1 verified cross-reference
  • Primary manufacturer: Aalberts Integrated Piping Systems Americas, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber and Plastic Polyamide Nylon construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-440-1340, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Aalberts Integrated Piping Systems Americas, Inc.. Government technical data includes 2 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-440-1340
Primary Part NumberD-2505
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAalberts Integrated Piping Systems Americas, Inc.
StatusACTIVE
MaterialRUBBER AND PLASTIC POLYAMIDE NYLON
Style DesignatorFLAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3030-00-528-3768 INTERCHANGEABLE
Belts,v,matched Set
5910-00-988-4716D2-505 INTERCHANGEABLE
Capacitor,fixed,plastic Dielectr
Electron Products Inc
4820-01-353-73801176-89 ITEM 3 INTERCHANGEABLE
Valve,safety Relief
Insinger Machine Co
Cross-Reference Index
Part NumberManufacturer
D-2505 PRIMARY Aalberts Integrated Piping Systems Americas, Inc. (USA)
Related Parts
3030-00-528-3768INTERCHANGEABLE
BELTS,V,MATCHED SET
5910-00-988-4716INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
D2-505
4820-01-353-7380INTERCHANGEABLE
VALVE,SAFETY RELIEF
1176-89 ITEM 3

Frequently Asked Questions

What is NSN 4820-01-440-1340?

NSN 4820-01-440-1340 is a Diaphragm,valve,flat, manufactured by Aalberts Integrated Piping Systems Americas, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-440-1340?

NSN 4820-01-440-1340 has 1 cross-referenced part number: D-2505 (Aalberts Integrated Piping Systems Americas, Inc.).

What NSN replaces 4820-01-440-1340?

There are 3 known substitutes for 4820-01-440-1340: 3030-00-528-3768, 5910-00-988-4716, 4820-01-353-7380. Verify interchangeability with system specifications before substitution.

What are the specifications of D-2505?

Key specifications for D-2505: Material: RUBBER AND PLASTIC POLYAMIDE NYLON; Style Designator: FLAT; End Item Identification: 2350-01-405-9886; MARS CLASS AFS. 3 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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