PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

801-13Parts Kit,pressure Regulating VA

Watson Mcdaniel Co · NSN 4820-01-450-0849 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-450-0849 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-450-0849. Primary manufacturer part number: 801-13.
Features
  • Parts Kit,pressure Regulating VA — FSC 4820
  • Document Type: MFR CATALOG
  • Nonsupply Items and Quantities: BOTTOM GASKET COVER 1; DIAPHRAGM GASKET 2; DIAPHRAGM 2; PILOT ADAPTER GASKET 1; STRAINER SCREEN 1; SEAT 1; DISC AND STEM ASSEMBLY 1
  • Component Quantity: 9
  • Component Document Page Number: 31
  • Component Document Origin: INDUSTRIAL
  • Document Source: 64042
  • Document Identification: WATSON MC DANIEL
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Parts Kit,pressure Regulating VA, cataloged under National Stock Number 4820-01-450-0849, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Watson Mcdaniel Co. Government technical data includes 7 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-450-0849
Primary Part Number801-13
Item NameParts Kit,pressure Regulating VA
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWatson Mcdaniel Co
StatusACTIVE
Document TypeMFR CATALOG
Nonsupply Items and QuantitiesBOTTOM GASKET COVER 1; DIAPHRAGM GASKET 2; DIAPHRAGM 2; PILOT ADAPTER GASKET 1; STRAINER SCREEN 1; SEAT 1; DISC AND STEM ASSEMBLY 1
Component Quantity9
Component Document Page Number31
Component Document OriginINDUSTRIAL
Document Source64042
Document IdentificationWATSON MC DANIEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5950-00-020-278280113 INTERCHANGEABLE
Transformer,power
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
6635-00-038-43238011+055W/2089711-01&2089710-01 INTERCHANGEABLE
Analyzer,particle Size
Beckman Coulter, Inc
5340-00-576-400380113 INTERCHANGEABLE
Cover,access
L3harris Technologies, Inc Div Space & Airborne Systems
6625-00-649-366022454 INTERCHANGEABLE
Ammeter
Naval Ship Systems Command
5935-00-799-8059GRFF2088A INTERCHANGEABLE
Connector,receptacle,electrical
Sv Microwave, Inc. Div Sv Microwave
5930-01-024-7888 INTERCHANGEABLE
Switch Assembly
2010-01-176-5799 INTERCHANGEABLE
Lock,ring,mechanism
5330-01-185-856980113 INTERCHANGEABLE
Gasket
Ricoh Americas Corporation
4940-01-221-161280113-1 INTERCHANGEABLE
Support Assembly,cradle
L3harris Technologies, Inc. Div Space and Airborne Systems
5930-01-229-6504355-185-080 INTERCHANGEABLE
Switch Assembly
L3harris Interstate Electronics Corporation
Cross-Reference Index
Part NumberManufacturer
801-13 PRIMARY Watson Mcdaniel Co (USA)
Related Parts
5950-00-020-2782INTERCHANGEABLE
TRANSFORMER,POWER
80113
6635-00-038-4323INTERCHANGEABLE
ANALYZER,PARTICLE SIZE
8011+055W/2089711-01&2089710-01
5340-00-576-4003INTERCHANGEABLE
COVER,ACCESS
80113
6625-00-649-3660INTERCHANGEABLE
AMMETER
22454
5935-00-799-8059INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
GRFF2088A
5930-01-024-7888INTERCHANGEABLE
SWITCH ASSEMBLY
2010-01-176-5799INTERCHANGEABLE
LOCK,RING,MECHANISM
5330-01-185-8569INTERCHANGEABLE
GASKET
80113
4940-01-221-1612INTERCHANGEABLE
SUPPORT ASSEMBLY,CRADLE
80113-1
5930-01-229-6504INTERCHANGEABLE
SWITCH ASSEMBLY
355-185-080

Frequently Asked Questions

What is NSN 4820-01-450-0849?

NSN 4820-01-450-0849 is a Parts Kit,pressure Regulating VA, manufactured by Watson Mcdaniel Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-450-0849?

NSN 4820-01-450-0849 has 1 cross-referenced part number: 801-13 (Watson Mcdaniel Co).

What NSN replaces 4820-01-450-0849?

There are 10 known substitutes for 4820-01-450-0849: 5950-00-020-2782, 6635-00-038-4323, 5340-00-576-4003 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 801-13?

Key specifications for 801-13: Document Type: MFR CATALOG; Part Name Assigned by Controlling Agency: SERVICE KIT: D VALVE KIT; Nonsupply Items and Quantities: BOTTOM GASKET COVER 1; DIAPHRAGM GASKET 2; DIAPHRAGM 2; PILOT ADAPTER GASKET 1; STRAINER SCREEN 1; SEAT 1; DISC AND STEM ASSEMBLY 1; End Item Identification: SERIES D PILOT OPERATED REGULATORS. 9 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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