PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

728-02Retainer,disk,valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-585-0024 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-585-0024 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-585-0024. Primary manufacturer part number: 728-02.
Features
  • Retainer,disk,valve — FSC 4820
  • Valve Model Number for Which Designed: 40776-4
  • Valve Size for Which Designed: 1.000 INCHES IN
  • 2 verified cross-references
  • Primary manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Retainer,disk,valve, cataloged under National Stock Number 4820-01-585-0024, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). 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
NSN4820-01-585-0024
Primary Part Number728-02
Item NameRetainer,disk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Valve Model Number for Which Designed40776-4
Valve Size for Which Designed1.000 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2815-00-142-5391224771 INTERCHANGEABLE
Ring,piston
Dana Off Highway Products, Llc
5342-00-656-7539B411M36 INTERCHANGEABLE
Bracket,axle
E C Schleyer Pump Co Inc
4330-01-115-369325307 INTERCHANGEABLE
Filter,fluid
Pall Aeropower Corporation
5330-01-500-574572802 INTERCHANGEABLE
Gasket
Evoqua Water Technologies Llc
Cross-Reference Index
Part NumberManufacturer
40776-4 PC NO 15 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
728-02 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
2815-00-142-5391INTERCHANGEABLE
RING,PISTON
224771
5342-00-656-7539INTERCHANGEABLE
BRACKET,AXLE
B411M36
4330-01-115-3693INTERCHANGEABLE
FILTER,FLUID
25307
5330-01-500-5745INTERCHANGEABLE
GASKET
72802

Frequently Asked Questions

What is NSN 4820-01-585-0024?

NSN 4820-01-585-0024 is a Retainer,disk,valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-585-0024?

NSN 4820-01-585-0024 has 2 cross-referenced part numbers: 40776-4 PC NO 15 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 728-02 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-585-0024?

There are 4 known substitutes for 4820-01-585-0024: 2815-00-142-5391, 5342-00-656-7539, 4330-01-115-3693 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 728-02?

Key specifications for 728-02: Valve Model Number for Which Designed: 40776-4; Valve Size for Which Designed: 1.000 INCHES IN; End Item Identification: NEW CONSTRUCTION CVN78; Part Name Assigned by Controlling Agency: RETAINER DISK. 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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