PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

38363CPPiston,valve

Naval Inventory Control Point Mechanicsburg · NSN 4820-01-408-6993 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-408-6993 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-408-6993. Primary manufacturer part number: 38363CP.
Features
  • Piston,valve — FSC 4820
  • Material: ALUMINUM ALLOY
  • Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
  • Valve Type for Which Designed: PRESSURE REDUCING
  • 4 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy construction
General Description

The Piston,valve, cataloged under National Stock Number 4820-01-408-6993, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-408-6993
Primary Part Number38363CP
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
MaterialALUMINUM ALLOY
Reference Number Differentiating CharacteristicsCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
Valve Type for Which DesignedPRESSURE REDUCING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3040-00-118-441038363 INTERCHANGEABLE
Gearshaft,bevel
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5950-00-906-3146E7.2 INTERCHANGEABLE
Transformer,power
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-122-281763750 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
4820-01-200-238938363 INTERCHANGEABLE
Stem,fluid Valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
2910-01-243-007338363 INTERCHANGEABLE
Pump,fuel,metering and Distribut
Perkins Engines Inc
4820-01-287-4896 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4820-01-408-6994 INTERCHANGEABLE
Disk,valve
4820-01-408-719938362 INTERCHANGEABLE
Retainer,seat,valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
4820-01-408-720638365 INTERCHANGEABLE
Guide,valve Stem
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
1650-01-485-804638363 INTERCHANGEABLE
Filter Body,fluid
Pti Technologies Inc.
Cross-Reference Index
Part NumberManufacturer
38363CP Naval Inventory Control Point Mechanicsburg (USA)
63750-2 ITEM 8 Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
63750 Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
38363 Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
3040-00-118-4410INTERCHANGEABLE
GEARSHAFT,BEVEL
38363
5950-00-906-3146INTERCHANGEABLE
TRANSFORMER,POWER
E7.2
4820-01-122-2817INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
63750
4820-01-200-2389INTERCHANGEABLE
STEM,FLUID VALVE
38363
2910-01-243-0073INTERCHANGEABLE
PUMP,FUEL,METERING AND DISTRIBUT
38363
4820-01-287-4896INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-01-408-6994INTERCHANGEABLE
DISK,VALVE
4820-01-408-7199INTERCHANGEABLE
RETAINER,SEAT,VALVE
38362
4820-01-408-7206INTERCHANGEABLE
GUIDE,VALVE STEM
38365
1650-01-485-8046INTERCHANGEABLE
FILTER BODY,FLUID
38363
8030-01-673-8394INTERCHANGEABLE
SEALING COMPOUND
38363

Frequently Asked Questions

What is NSN 4820-01-408-6993?

NSN 4820-01-408-6993 is a Piston,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-408-6993?

NSN 4820-01-408-6993 has 4 cross-referenced part numbers: 38363CP (Naval Inventory Control Point Mechanicsburg), 63750-2 ITEM 8 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson), 63750 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson), 38363 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 4820-01-408-6993?

There are 11 known substitutes for 4820-01-408-6993: 3040-00-118-4410, 5950-00-906-3146, 4820-01-122-2817 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 38363CP?

Key specifications for 38363CP: Special Features: MANIFOLD PRES; Material: ALUMINUM ALLOY; Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330; Valve Type for Which Designed: PRESSURE REDUCING. 4 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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