PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ES20Compressor Unit,reciprocating

Curtis-Toledo, Inc. · NSN 4310-01-674-8546 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-01-674-8546 — this item is cataloged by the U.S. Government under National Stock Number 4310-01-674-8546. Primary manufacturer part number: ES20.
Features
  • Compressor Unit,reciprocating — FSC 4310
  • Gas for Which Designed: AIR
  • Compressor Cooling Medium: AIR
  • Mounting Type: BASE
  • Prime Mover Cooling Medium: AIR
  • Compressor Quantity: 1
  • Stage Quantity: 1
  • Cylinder Quantity: 3
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Compressor Unit,reciprocating, cataloged under National Stock Number 4310-01-674-8546, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Curtis-Toledo, Inc.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4310-01-674-8546
Primary Part NumberES20
Item NameCompressor Unit,reciprocating
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerCurtis-Toledo, Inc.
StatusACTIVE
Gas for Which DesignedAIR
Compressor Cooling MediumAIR
Mounting TypeBASE
Prime Mover Cooling MediumAIR
Compressor Quantity1
Stage Quantity1
Cylinder Quantity3
Discharge Flow Rate10.4 CUBIC FEET PER MINUTE
Reciprocating Compressor DesignSINGLE ACTING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6515-01-396-7363ES-20 INTERCHANGEABLE
Pump,vacuum,splint
Brake Locker U.s.a. Corp. Dba Gms Marketing Services Div Gms Marketing
5325-01-715-1644ES20 INTERCHANGEABLE
Ring,retaining
Smalley Steel Ring Co.
Cross-Reference Index
Part NumberManufacturer
ES20 PRIMARY Curtis-Toledo, Inc. (USA)
Related Parts
6515-01-396-7363INTERCHANGEABLE
PUMP,VACUUM,SPLINT
ES-20
5325-01-715-1644INTERCHANGEABLE
RING,RETAINING
ES20

Frequently Asked Questions

What is NSN 4310-01-674-8546?

NSN 4310-01-674-8546 is a Compressor Unit,reciprocating, manufactured by Curtis-Toledo, Inc., classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-01-674-8546?

NSN 4310-01-674-8546 has 1 cross-referenced part number: ES20 (Curtis-Toledo, Inc.).

What NSN replaces 4310-01-674-8546?

There are 2 known substitutes for 4310-01-674-8546: 6515-01-396-7363, 5325-01-715-1644. Verify interchangeability with system specifications before substitution.

What are the specifications of ES20?

Key specifications for ES20: Gas for Which Designed: AIR; Compressor Cooling Medium: AIR; Mounting Type: BASE; Prime Mover Cooling Medium: AIR. 11 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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