PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN84S4825-461355PC3Diaphragm,valve,flat

Naval Ship Systems Command · NSN 4820-00-338-2999 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-338-2999 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-338-2999. Primary manufacturer part number: AN84S4825-461355PC3.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Material Thickness: 0.062 INCHES NOMINAL IN
  • Hole Diameter: 0.250 INCHES NOMINAL IN
  • Outside Diameter: 8.000 INCHES NOMINAL IN
  • Bolt Hole Quantity: 10
  • Material: COPPER
  • Style Designator: FLAT
  • Bolt Circle Diameter: 7.378 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-338-2999, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-338-2999
Primary Part NumberAN84S4825-461355PC3
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Material Thickness0.062 INCHES NOMINAL IN
Hole Diameter0.250 INCHES NOMINAL IN
Outside Diameter8.000 INCHES NOMINAL IN
Bolt Hole Quantity10
MaterialCOPPER
Style DesignatorFLAT
Bolt Circle Diameter7.378 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-060-2766SM-C-387304-1 INTERCHANGEABLE
Connector,plug,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
8040-00-162-97048040-00-162-9704 INTERCHANGEABLE
Adhesive
General Services Administration Federal Supply Service
4320-00-226-1076DSP1696B27F501C1 INTERCHANGEABLE
Seal Assembly,pump
Defense Maritime Solutions, Inc.
5910-00-256-49653333 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Republic Electronics Corp S Inc
5310-00-285-85533333 INTERCHANGEABLE
Washer,flat
Brinkley Technology Group Llc Dba Hercules Manufacturing
4730-00-287-3281127950 INTERCHANGEABLE
Plug,pipe
Rolls-Royce Solutions America Inc
9390-00-290-2220 INTERCHANGEABLE
Nonmetallic Special Shaped Secti
4310-00-470-6415P09045A INTERCHANGEABLE
Fork,actuating
Gardner Denver Inc.
5930-00-556-068511-303 INTERCHANGEABLE
Switch,sensitive
Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Illinois Tool Works
4730-00-563-46843333 INTERCHANGEABLE
Nipple,tube
Alter Harry Co the Div of T E C
Cross-Reference Index
Part NumberManufacturer
AN84S4825-461355PC3 PRIMARY Naval Ship Systems Command (USA)
S3-3 Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc (USA)
P28-8 Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc (USA)
YW111S4825-263106PC3 PRIMARY Naval Ship Systems Command (USA)
312PC3 Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc (USA)
333PC3 Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc (USA)
333-3 PRIMARY Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc (USA)
Related Parts
5935-00-060-2766INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
SM-C-387304-1
8040-00-162-9704INTERCHANGEABLE
ADHESIVE
8040-00-162-9704
4320-00-226-1076INTERCHANGEABLE
SEAL ASSEMBLY,PUMP
DSP1696B27F501C1
5910-00-256-4965INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
3333
5310-00-285-8553INTERCHANGEABLE
WASHER,FLAT
3333
4730-00-287-3281INTERCHANGEABLE
PLUG,PIPE
127950
9390-00-290-2220INTERCHANGEABLE
NONMETALLIC SPECIAL SHAPED SECTI
4310-00-470-6415INTERCHANGEABLE
FORK,ACTUATING
P09045A
5930-00-556-0685INTERCHANGEABLE
SWITCH,SENSITIVE
11-303
4730-00-563-4684INTERCHANGEABLE
NIPPLE,TUBE
3333
4820-00-768-5371INTERCHANGEABLE
DISK,VALVE
KMC-60-322 PC426
2530-00-799-1690INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK

Frequently Asked Questions

What is NSN 4820-00-338-2999?

NSN 4820-00-338-2999 is a Diaphragm,valve,flat, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-338-2999?

NSN 4820-00-338-2999 has 7 cross-referenced part numbers: AN84S4825-461355PC3 (Naval Ship Systems Command), S3-3 (Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc), P28-8 (Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc), YW111S4825-263106PC3 (Naval Ship Systems Command), 312PC3 (Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc) and 2 more.

What NSN replaces 4820-00-338-2999?

There are 12 known substitutes for 4820-00-338-2999: 5935-00-060-2766, 8040-00-162-9704, 4320-00-226-1076 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AN84S4825-461355PC3?

Key specifications for AN84S4825-461355PC3: Material Thickness: 0.062 INCHES NOMINAL IN; Hole Diameter: 0.250 INCHES NOMINAL IN; Outside Diameter: 8.000 INCHES NOMINAL IN; Bolt Hole Quantity: 10. 7 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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