PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25021Valve Plate,compressor

Drs Environmental Systems Inc · NSN 4310-00-392-5320 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-392-5320 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-392-5320. Primary manufacturer part number: 25021.
Features
  • Valve Plate,compressor — FSC 4310
  • Material: STEEL
  • Overall Diameter: 4.165 INCHES NOMINAL IN
  • 3 verified cross-references
  • Primary manufacturer: Drs Environmental Systems Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel construction
General Description

The Valve Plate,compressor, cataloged under National Stock Number 4310-00-392-5320, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Drs Environmental Systems Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN4310-00-392-5320
Primary Part Number25021
Item NameValve Plate,compressor
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerDrs Environmental Systems Inc
StatusACTIVE
MaterialSTEEL
Overall Diameter4.165 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5905-00-110-32002502-1 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
General Microwave Corporation Div Kratos Microwave Electronics
5330-00-285-5958 INTERCHANGEABLE
Seal,plain Encased
2805-00-382-7986028501 INTERCHANGEABLE
Cap
Caterpillar Inc Div Caterpillar Defense
4820-00-391-37822203X4 INTERCHANGEABLE
Cock,shutoff,screw Stem
Essex Brownell Inc. Div Essex Group Inc
3010-00-397-3144100-486 INTERCHANGEABLE
Clutch Assembly,friction
Champion Industries Inc.
5355-00-505-375625021 INTERCHANGEABLE
Dial,scale
Liftec Inc Div Liftec, Inc.
5930-00-544-5593 INTERCHANGEABLE
Switch,toggle
5950-00-570-92992060131-1 INTERCHANGEABLE
Coil,radio Frequency
L3harris Technologies, Inc.
5315-00-672-9503 INTERCHANGEABLE
Pin,straight,headless
2510-00-741-001325021 INTERCHANGEABLE
Shield Engine Cylin
John Deer Consumer Products Inc
Cross-Reference Index
Part NumberManufacturer
25021 Drs Environmental Systems Inc (USA)
25021 Hdt Expeditionary Systems Inc (USA)
25021 Davey Compressor Co Div of Keco Industries Inc (USA)
Related Parts
5905-00-110-3200INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
2502-1
5330-00-285-5958INTERCHANGEABLE
SEAL,PLAIN ENCASED
2805-00-382-7986INTERCHANGEABLE
CAP
028501
4820-00-391-3782INTERCHANGEABLE
COCK,SHUTOFF,SCREW STEM
2203X4
3010-00-397-3144INTERCHANGEABLE
CLUTCH ASSEMBLY,FRICTION
100-486
5355-00-505-3756INTERCHANGEABLE
DIAL,SCALE
25021
5930-00-544-5593INTERCHANGEABLE
SWITCH,TOGGLE
5950-00-570-9299INTERCHANGEABLE
COIL,RADIO FREQUENCY
2060131-1
5315-00-672-9503INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
2510-00-741-0013INTERCHANGEABLE
SHIELD ENGINE CYLIN
25021
4030-00-893-7753INTERCHANGEABLE
CLAMP,WIRE ROPE,SADDLED
5975-00-938-8835INTERCHANGEABLE
CONDUIT ASSEMBLY,METAL,RIGID
25021

Frequently Asked Questions

What is NSN 4310-00-392-5320?

NSN 4310-00-392-5320 is a Valve Plate,compressor, manufactured by Drs Environmental Systems Inc, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-392-5320?

NSN 4310-00-392-5320 has 3 cross-referenced part numbers: 25021 (Drs Environmental Systems Inc), 25021 (Hdt Expeditionary Systems Inc), 25021 (Davey Compressor Co Div of Keco Industries Inc).

What NSN replaces 4310-00-392-5320?

There are 12 known substitutes for 4310-00-392-5320: 5905-00-110-3200, 5330-00-285-5958, 2805-00-382-7986 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25021?

Key specifications for 25021: Material: STEEL; Special Features: W/ 0.554 IN. CENTER HOLE IN; Overall Width: 0.035 INCHES NOMINAL IN; Overall Diameter: 4.165 INCHES NOMINAL IN. 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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