PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14444-187Parts Kit,diaphragm Replacement

Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives · NSN 4820-01-493-6068 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-493-6068 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-493-6068. Primary manufacturer part number: 14444-187.
Features
  • Parts Kit,diaphragm Replacement — FSC 4820
  • Model Number: 50.55
  • Component Document Page Number: 1
  • Supply Items and Quantities: 5310-01-344-7216 1/4 MED LOCKWASHER SST 8; 6660-01-012-5750 RESTR SCREW 1; 6660-01-012-6960 NEEDLE VALVE 1; 5360-00-583-4716 COMPRESSION SPRING 1; 4820-00-738-0341 NOZZLE SEAT ASSY 1; 4730-00-783-6559 RESTRICTION 3; 5305-00-844-3450 SEALING SCREW 2; 4810-00-678-0303 DIAPHRAGM 2; 6680-00-678-0305 TOP DIAPHRAGM ASSY 1; 5330-00-870-5359 GASKET 2; 5355-01-191-2844 POINTER 1; 4730-01-205-9448 NOZZLE 1; 4820-00-0972-9791 TOP DIAPH ASSY 1; 5342-01-191-4514 CUT OFF PLATE 2; 5310-01-013-8626 WSHR .140X.38X.072 BRS
  • Nonsupply Items and Quantities: 41387 1-6818 DX.125 TYPE U DRIVESCREW SST 8; 1-7740 1/4-2D HEX NUT SST 6; 1-5900-416 SERVICE KIT INSTRUCTION CARD 1; 2938-147 O RING, 0.114IDX.070W, GRPHTD 2; 2938-148 O RING, 0.208IDX.070, GRPHTD 2; X6095 PLASTIC BAG .004X.3.0X5.0 1 W
  • Component Quantity: 50
  • Document Source: 41387
  • Component Document Origin: INDUSTRIAL
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Parts Kit,diaphragm Replacement, cataloged under National Stock Number 4820-01-493-6068, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives. Government technical data includes 9 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-493-6068
Primary Part Number14444-187
Item NameParts Kit,diaphragm Replacement
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSiemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
StatusACTIVE
Model Number50.55
Component Document Page Number1
Supply Items and Quantities5310-01-344-7216 1/4 MED LOCKWASHER SST 8; 6660-01-012-5750 RESTR SCREW 1; 6660-01-012-6960 NEEDLE VALVE 1; 5360-00-583-4716 COMPRESSION SPRING 1; 4820-00-738-0341 NOZZLE SEAT ASSY 1; 4730-00-783-6559 RESTRICTION 3; 5305-00-844-3450 SEALING SCREW 2; 4810-00-678-0303 DIAPHRAGM 2; 6680-00-678-0305 TOP DIAPHRAGM ASSY 1; 5330-00-870-5359 GASKET 2; 5355-01-191-2844 POINTER 1; 4730-01-205-9448 NOZZLE 1; 4820-00-0972-9791 TOP DIAPH ASSY 1; 5342-01-191-4514 CUT OFF PLATE 2; 5310-01-013-8626 WSHR .140X.38X.072 BRS
Nonsupply Items and Quantities41387 1-6818 DX.125 TYPE U DRIVESCREW SST 8; 1-7740 1/4-2D HEX NUT SST 6; 1-5900-416 SERVICE KIT INSTRUCTION CARD 1; 2938-147 O RING, 0.114IDX.070W, GRPHTD 2; 2938-148 O RING, 0.208IDX.070, GRPHTD 2; X6095 PLASTIC BAG .004X.3.0X5.0 1 W
Component Quantity50
Document Source41387
Component Document OriginINDUSTRIAL
Document Identification1444-187
Document TypePARTS LIST
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6620-00-057-2764SCD10171 INTERCHANGEABLE
Transmitter,pressure
Celtech Corporation Div Use CAGE 65552 for All Orders
5910-00-577-1269290-0025-00 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Tektronix, Inc.
4810-00-678-03032900-25 INTERCHANGEABLE
Diaphragm,actuator Valve,special
Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
5330-01-701-2156290025 INTERCHANGEABLE
Gasket
Alfa Laval Inc
Cross-Reference Index
Part NumberManufacturer
14444-187 PRIMARY Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
2900-25 Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
Related Parts
6620-00-057-2764INTERCHANGEABLE
TRANSMITTER,PRESSURE
SCD10171
5910-00-577-1269INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
290-0025-00
4810-00-678-0303INTERCHANGEABLE
DIAPHRAGM,ACTUATOR VALVE,SPECIAL
2900-25
5330-01-701-2156INTERCHANGEABLE
GASKET
290025

Frequently Asked Questions

What is NSN 4820-01-493-6068?

NSN 4820-01-493-6068 is a Parts Kit,diaphragm Replacement, manufactured by Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-493-6068?

NSN 4820-01-493-6068 has 2 cross-referenced part numbers: 14444-187 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives), 2900-25 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives).

What NSN replaces 4820-01-493-6068?

There are 4 known substitutes for 4820-01-493-6068: 6620-00-057-2764, 5910-00-577-1269, 4810-00-678-0303 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14444-187?

Key specifications for 14444-187: Model Number: 50.55; Component Document Page Number: 1; Supply Items and Quantities: 5310-01-344-7216 1/4 MED LOCKWASHER SST 8; 6660-01-012-5750 RESTR SCREW 1; 6660-01-012-6960 NEEDLE VALVE 1; 5360-00-583-4716 COMPRESSION SPRING 1; 4820-00-738-0341 NOZZLE SEAT ASSY 1; 4730-00-783-6559 RESTRICTION 3; 5305-00-844-3450 SEALING SCREW 2; 4810-00-678-0303 DIAPHRAGM 2; 6680-00-678-0305 TOP DIAPHRAGM ASSY 1; 5330-00-870-5359 GASKET 2; 5355-01-191-2844 POINTER 1; 4730-01-205-9448 NOZZLE 1; 4820-00-0972-9791 TOP DIAPH ASSY 1; 5342-01-191-4514 CUT OFF PLATE 2; 5310-01-013-8626 WSHR .140X.38X.072 BRS; Part Name Assigned by Controlling Agency: MODEL 50.55 REBUILD ABV DIAPHRAGM KIT. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com