PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1-1327-1-6338Disk,valve

Fluid Mechanics Valve Company · NSN 1650-01-395-7381 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-01-395-7381 — this item is cataloged by the U.S. Government under National Stock Number 1650-01-395-7381. Primary manufacturer part number: 1-1327-1-6338.
Features
  • Disk,valve — FSC 1650
  • Material: NICKEL ALLOY
  • Media for Which Designed: WATER, SALT
  • Style Designator: PLAIN
  • Supplementary Features: USED ON 3800 SERIES, 382 RELIEF VALVE
  • 3 verified cross-references
  • Primary manufacturer: Fluid Mechanics Valve Company
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy construction
General Description

The Disk,valve, cataloged under National Stock Number 1650-01-395-7381, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Fluid Mechanics Valve Company. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN1650-01-395-7381
Primary Part Number1-1327-1-6338
Item NameDisk,valve
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerFluid Mechanics Valve Company
StatusACTIVE
MaterialNICKEL ALLOY
Media for Which DesignedWATER, SALT
Style DesignatorPLAIN
Supplementary FeaturesUSED ON 3800 SERIES, 382 RELIEF VALVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5841-00-338-1763359D133 INTERCHANGEABLE
Magnet Assy,focusin
General Dynamics Mission Systems, Inc. Dba Gdms
5950-00-647-5260 INTERCHANGEABLE
Transformer,power
4820-01-134-280320285 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-150-382107521004132 INTERCHANGEABLE
Pressure Screw,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5331-01-273-153820285 INTERCHANGEABLE
O-Ring
Bourns Inc
4820-01-396-193438202-3112S19 INTERCHANGEABLE
Valve,safety Relief
Fluid Mechanics Valve Company
6545-01-416-6000 INTERCHANGEABLE
Kit,ventilator,volu
6240-01-419-7793 INTERCHANGEABLE
Lamp,fluorescent
8145-01-580-751112573801 INTERCHANGEABLE
Shipping and Storage Container,e
U S Army Tank Automotive Command Amsta-Im-Mm
6680-01-651-780220285-0501 INTERCHANGEABLE
Transmitter,liquid Quantity
Simmonds Precision Products Inc
Cross-Reference Index
Part NumberManufacturer
20285 Fluid Mechanics Valve Company (USA)
20285 PIECE 8 Fluid Mechanics Valve Company (USA)
1-1327-1-6338 PRIMARY Fluid Mechanics Valve Company (USA)
Related Parts
5841-00-338-1763INTERCHANGEABLE
MAGNET ASSY,FOCUSIN
359D133
5950-00-647-5260INTERCHANGEABLE
TRANSFORMER,POWER
4820-01-134-2803INTERCHANGEABLE
VALVE,SAFETY RELIEF
20285
4820-01-150-3821INTERCHANGEABLE
PRESSURE SCREW,VALVE
07521004132
5331-01-273-1538INTERCHANGEABLE
O-RING
20285
4820-01-396-1934INTERCHANGEABLE
VALVE,SAFETY RELIEF
38202-3112S19
6545-01-416-6000INTERCHANGEABLE
KIT,VENTILATOR,VOLU
6240-01-419-7793INTERCHANGEABLE
LAMP,FLUORESCENT
8145-01-580-7511INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,E
12573801
6680-01-651-7802INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
20285-0501
6680-01-652-1612INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
20285-0301
4320-01-657-8174INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
20-285

Frequently Asked Questions

What is NSN 1650-01-395-7381?

NSN 1650-01-395-7381 is a Disk,valve, manufactured by Fluid Mechanics Valve Company, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-01-395-7381?

NSN 1650-01-395-7381 has 3 cross-referenced part numbers: 20285 (Fluid Mechanics Valve Company), 20285 PIECE 8 (Fluid Mechanics Valve Company), 1-1327-1-6338 (Fluid Mechanics Valve Company).

What NSN replaces 1650-01-395-7381?

There are 12 known substitutes for 1650-01-395-7381: 5841-00-338-1763, 5950-00-647-5260, 4820-01-134-2803 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1-1327-1-6338?

Key specifications for 1-1327-1-6338: End Item Identification: WEAPON SYSTEM CODE JU; CRANE,WHEEL MTD; 20-TON W/BLK TACKLE; Special Features: 1/4IN. ORIFICE DISC ASSEMBLY: INCONEL ASTM B446 DISC W/POLYTETRAFLUOROETHYLENE SEAT IN; Material: NICKEL ALLOY; Media for Which Designed: WATER, SALT. 6 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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