PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1383Valve,safety Relief

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-238-5328 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-238-5328 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-238-5328. Primary manufacturer part number: 1383.
Features
  • Valve,safety Relief — FSC 4820
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
  • Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS
  • Material: COPPER ALLOY BODY
  • Flow Control Device: DISK
  • Valve Operation Method: AUTOMATIC
  • Nominal Outside Diameter Tube Accommodated: 0.250 INCHES ALL ENDS IN
  • Bonnet Type: INSIDE SCREW
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr Seat construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-238-5328, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 12 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
NSN4820-01-238-5328
Primary Part Number1383
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
MaterialCOPPER ALLOY BODY
Flow Control DeviceDISK
Valve Operation MethodAUTOMATIC
Nominal Outside Diameter Tube Accommodated0.250 INCHES ALL ENDS IN
Bonnet TypeINSIDE SCREW
Style DesignatorANGLE
MaterialNICKEL ALLOY STEM
Connection StyleSOCKET (TUBE) ALL ENDS
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
Bonnet Attachment MethodTHREADED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-132-22631383 INTERCHANGEABLE
Transformer,power
Precision Electronics, Inc
5305-00-297-8043 INTERCHANGEABLE
Screw,machine
5340-00-346-0049138-3 INTERCHANGEABLE
Screw,piston
Emhart Industries Inc Corbin Cabinet Lock Hardware Div
6240-00-539-9659 INTERCHANGEABLE
Lamp,incandescent
6240-00-683-0329S55B INTERCHANGEABLE
Lamp,flashtube
Amglo Kemlite Laboratories, Inc. Div Xenon
4720-00-684-4048 INTERCHANGEABLE
Hose Assembly,metallic
5999-00-729-7273 INTERCHANGEABLE
Shielding Gasket,electronic
5950-00-838-45311-383 INTERCHANGEABLE
Transformer,power
Eldec Aerospace Corp
5999-01-026-83411383 INTERCHANGEABLE
Data Grid Modification
Leidos, Inc. Div Cyber and Information Solutions Services
5340-01-169-44051383 INTERCHANGEABLE
Plug,expansion
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
1382 .25IN. Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
1383 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
1382 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5950-00-132-2263INTERCHANGEABLE
TRANSFORMER,POWER
1383
5305-00-297-8043INTERCHANGEABLE
SCREW,MACHINE
5340-00-346-0049INTERCHANGEABLE
SCREW,PISTON
138-3
6240-00-539-9659INTERCHANGEABLE
LAMP,INCANDESCENT
6240-00-683-0329INTERCHANGEABLE
LAMP,FLASHTUBE
S55B
4720-00-684-4048INTERCHANGEABLE
HOSE ASSEMBLY,METALLIC
5999-00-729-7273INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
5950-00-838-4531INTERCHANGEABLE
TRANSFORMER,POWER
1-383
5999-01-026-8341INTERCHANGEABLE
DATA GRID MODIFICATION
1383
5340-01-169-4405INTERCHANGEABLE
PLUG,EXPANSION
1383
5365-01-289-5021INTERCHANGEABLE
SHIM
1383
5120-01-399-9279INTERCHANGEABLE
HAMMER,HAND
1383

Frequently Asked Questions

What is NSN 4820-01-238-5328?

NSN 4820-01-238-5328 is a Valve,safety Relief, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-238-5328?

NSN 4820-01-238-5328 has 3 cross-referenced part numbers: 1382 .25IN. (Leslie Controls, Inc. Dba Leslie Controls Inc), 1383 (Leslie Controls, Inc. Dba Leslie Controls Inc), 1382 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-238-5328?

There are 12 known substitutes for 4820-01-238-5328: 5950-00-132-2263, 5305-00-297-8043, 5340-00-346-0049 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1383?

Key specifications for 1383: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT; Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS; Material: COPPER ALLOY BODY; Flow Control Device: DISK. 12 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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