PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

100573Cock,drain

Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba · NSN 4820-01-495-4012 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-495-4012 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-495-4012. Primary manufacturer part number: 100573.
Features
  • Cock,drain — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Cock,drain, cataloged under National Stock Number 4820-01-495-4012, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-495-4012
Primary Part Number100573
Item NameCock,drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCurtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5950-00-005-2525920011-17 INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
6625-00-938-8099MK827USM118 INTERCHANGEABLE
Test Set,electron Tube
Joint Electronics Type Designation System
4820-01-478-2874CRXL1.25KRV INTERCHANGEABLE
Parts Kit,safety Relief Valve
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
5330-01-660-8525100573 INTERCHANGEABLE
Seal,plain Encased
A V Technology Llc
Cross-Reference Index
Part NumberManufacturer
440561R1 Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba (USA)
100573 PRIMARY Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba (USA)
Related Parts
5950-00-005-2525INTERCHANGEABLE
COIL,RADIO FREQUENCY
920011-17
6625-00-938-8099INTERCHANGEABLE
TEST SET,ELECTRON TUBE
MK827USM118
4820-01-478-2874INTERCHANGEABLE
PARTS KIT,SAFETY RELIEF VALVE
CRXL1.25KRV
5330-01-660-8525INTERCHANGEABLE
SEAL,PLAIN ENCASED
100573

Frequently Asked Questions

What is NSN 4820-01-495-4012?

NSN 4820-01-495-4012 is a Cock,drain, manufactured by Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-495-4012?

NSN 4820-01-495-4012 has 2 cross-referenced part numbers: 440561R1 (Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba), 100573 (Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba).

What NSN replaces 4820-01-495-4012?

There are 4 known substitutes for 4820-01-495-4012: 5950-00-005-2525, 6625-00-938-8099, 4820-01-478-2874 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 100573?

Key specifications for 100573: End Item Identification: P-6 BRAKE; Special Features: NEXT HIGHER ASSEMBLY, PART NUMBER 010138. 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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