PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1028-5-3400Sleeve Assembly,valve

Droitcour Co · NSN 4820-01-062-3839 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-062-3839 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-062-3839. Primary manufacturer part number: 1028-5-3400.
Features
  • Sleeve Assembly,valve — FSC 4820
  • General Characteristics Item Description: CRES; HYDRAULIC OIL MEDIA; 4.625 IN. O/A LG; 3400 PSI SET PRESSURE; FOR 1.250 IN. PRESSURE RELIEF VALVE IN
  • 7 verified cross-references
  • Primary manufacturer: Droitcour Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Sleeve Assembly,valve, cataloged under National Stock Number 4820-01-062-3839, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Droitcour Co. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 7 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
NSN4820-01-062-3839
Primary Part Number1028-5-3400
Item NameSleeve Assembly,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDroitcour Co
StatusACTIVE
General Characteristics Item DescriptionCRES; HYDRAULIC OIL MEDIA; 4.625 IN. O/A LG; 3400 PSI SET PRESSURE; FOR 1.250 IN. PRESSURE RELIEF VALVE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-012-1832121832 INTERCHANGEABLE
Screw,machine
Us Army Aviation and Missile Command
6240-00-014-5416 INTERCHANGEABLE
Lamp,incandescent
5961-00-022-5664 INTERCHANGEABLE
Semiconductor Device,diode
6240-00-057-19661634 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
5905-00-106-7007C600012885 INTERCHANGEABLE
Resistor Set,matched
Kearfott Corporation Div Guidance and Navigation Division
2530-00-148-1520163-41 INTERCHANGEABLE
Seal Kit,hydrostat
Hamilton Sundstrand Corporation
5315-00-193-64658A7188 INTERCHANGEABLE
Pin,straight,headless
Napco International Llc Dba Napco International Inc
5950-00-289-98841783709-34 INTERCHANGEABLE
Transformer,audio Frequency
Honeywell International Inc. Dba Honeywell International
5330-00-324-815916341 INTERCHANGEABLE
Gasket
Terex Reedrill Dba Reedrill Texoma Div Terex Mining
4820-00-331-35371634 INTERCHANGEABLE
Valve,safety Relief
Rgi Inc Dba Rgi Inc
Cross-Reference Index
Part NumberManufacturer
1634-1 Droitcour Co (USA)
1634 Droitcour Co (USA)
1555PC2 Droitcour Co (USA)
1028-5 Droitcour Co (USA)
1028-5-3400 PRIMARY Droitcour Co (USA)
1634 5-3400 Droitcour Co (USA)
1555 Droitcour Co (USA)
Related Parts
5305-00-012-1832INTERCHANGEABLE
SCREW,MACHINE
121832
6240-00-014-5416INTERCHANGEABLE
LAMP,INCANDESCENT
5961-00-022-5664INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
6240-00-057-1966INTERCHANGEABLE
LAMP,INCANDESCENT
1634
5905-00-106-7007INTERCHANGEABLE
RESISTOR SET,MATCHED
C600012885
2530-00-148-1520INTERCHANGEABLE
SEAL KIT,HYDROSTAT
163-41
5315-00-193-6465INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
8A7188
5950-00-289-9884INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
1783709-34
5330-00-324-8159INTERCHANGEABLE
GASKET
16341
4820-00-331-3537INTERCHANGEABLE
VALVE,SAFETY RELIEF
1634
5330-00-362-2115INTERCHANGEABLE
GASKET
F400A336
5950-00-412-9617INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
60965-1

Frequently Asked Questions

What is NSN 4820-01-062-3839?

NSN 4820-01-062-3839 is a Sleeve Assembly,valve, manufactured by Droitcour Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-062-3839?

NSN 4820-01-062-3839 has 7 cross-referenced part numbers: 1634-1 (Droitcour Co), 1634 (Droitcour Co), 1555PC2 (Droitcour Co), 1028-5 (Droitcour Co), 1028-5-3400 (Droitcour Co) and 2 more.

What NSN replaces 4820-01-062-3839?

There are 12 known substitutes for 4820-01-062-3839: 5305-00-012-1832, 6240-00-014-5416, 5961-00-022-5664 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1028-5-3400?

Key specifications for 1028-5-3400: General Characteristics Item Description: CRES; HYDRAULIC OIL MEDIA; 4.625 IN. O/A LG; 3400 PSI SET PRESSURE; FOR 1.250 IN. PRESSURE RELIEF VALVE IN. 1 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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