PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11753/11781Base,pilot,external

Aerco International, Inc. Dba Aerco International Inc · NSN 4820-00-590-9097 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-590-9097 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-590-9097. Primary manufacturer part number: 11753/11781.
Features
  • Base,pilot,external — FSC 4820
  • General Characteristics Item Description: BRASS;OD 2.750 IN.,FOUR BOLT HOLES 0.201 IN. DIA EQUALLY SPCED ON 2.000 IN. BOLT CIRCLE;CENTER HOLE 0.380 DIA,1.620 DEEP,0.250-18 NPT;LARGEST ID 1.045 IN. DIA IN
  • 3 verified cross-references
  • Primary manufacturer: Aerco International, Inc. Dba Aerco International Inc
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Base,pilot,external, cataloged under National Stock Number 4820-00-590-9097, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Aerco International, Inc. Dba Aerco International Inc. Government technical data includes 1 verified specification, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-590-9097
Primary Part Number11753/11781
Item NameBase,pilot,external
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAerco International, Inc. Dba Aerco International Inc
StatusACTIVE
General Characteristics Item DescriptionBRASS;OD 2.750 IN.,FOUR BOLT HOLES 0.201 IN. DIA EQUALLY SPCED ON 2.000 IN. BOLT CIRCLE;CENTER HOLE 0.380 DIA,1.620 DEEP,0.250-18 NPT;LARGEST ID 1.045 IN. DIA IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5136-00-261-3262 INTERCHANGEABLE
Tap,thread Cutting
6145-00-467-051111753 INTERCHANGEABLE
Cable,radio Frequency
Nexans Aerospace Usa Llc
5305-00-989-9513 INTERCHANGEABLE
Screw,machine
3040-01-266-823911753 INTERCHANGEABLE
Cylinder Assembly,actuating,line
Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc.
6515-01-573-6410304.107W INTERCHANGEABLE
Marker,length,screw
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
EXBRZPC42 Aerco International, Inc. Dba Aerco International Inc (USA)
11753/11781 PRIMARY Aerco International, Inc. Dba Aerco International Inc (USA)
11753 Aerco International, Inc. Dba Aerco International Inc (USA)
Related Parts
5136-00-261-3262INTERCHANGEABLE
TAP,THREAD CUTTING
6145-00-467-0511INTERCHANGEABLE
CABLE,RADIO FREQUENCY
11753
5305-00-989-9513INTERCHANGEABLE
SCREW,MACHINE
3040-01-266-8239INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
11753
6515-01-573-6410INTERCHANGEABLE
MARKER,LENGTH,SCREW
304.107W

Frequently Asked Questions

What is NSN 4820-00-590-9097?

NSN 4820-00-590-9097 is a Base,pilot,external, manufactured by Aerco International, Inc. Dba Aerco International Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-590-9097?

NSN 4820-00-590-9097 has 3 cross-referenced part numbers: EXBRZPC42 (Aerco International, Inc. Dba Aerco International Inc), 11753/11781 (Aerco International, Inc. Dba Aerco International Inc), 11753 (Aerco International, Inc. Dba Aerco International Inc).

What NSN replaces 4820-00-590-9097?

There are 5 known substitutes for 4820-00-590-9097: 5136-00-261-3262, 6145-00-467-0511, 5305-00-989-9513 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11753/11781?

Key specifications for 11753/11781: End Item Identification: AERCO MODEL EXBRZ 3/8; General Characteristics Item Description: BRASS;OD 2.750 IN.,FOUR BOLT HOLES 0.201 IN. DIA EQUALLY SPCED ON 2.000 IN. BOLT CIRCLE;CENTER HOLE 0.380 DIA,1.620 DEEP,0.250-18 NPT;LARGEST ID 1.045 IN. DIA IN. 2 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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