PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

200-668Seat,valve

Biomarine Inc · NSN 4820-01-081-7478 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-081-7478 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-081-7478. Primary manufacturer part number: 200-668.
Features
  • Seat,valve — FSC 4820
  • Reference Number Differentiating Characteristics: CLEANED IN ACCORDANCE WITH MIL-P-52211
  • 1 verified cross-reference
  • Primary manufacturer: Biomarine Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-081-7478, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Biomarine Inc. Government technical data includes 1 verified specification, 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
NSN4820-01-081-7478
Primary Part Number200-668
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerBiomarine Inc
StatusACTIVE
Reference Number Differentiating CharacteristicsCLEANED IN ACCORDANCE WITH MIL-P-52211
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5325-00-350-341320955 INTERCHANGEABLE
Ring,retaining
Renk America Llc Div Renk America
3110-00-554-291713026360 INTERCHANGEABLE
Bearing,ball,annular
Timken Co Div the Timken Company
Cross-Reference Index
Part NumberManufacturer
200-668 Biomarine Inc (USA)
Related Parts
5325-00-350-3413INTERCHANGEABLE
RING,RETAINING
20955
3110-00-554-2917INTERCHANGEABLE
BEARING,BALL,ANNULAR
13026360

Frequently Asked Questions

What is NSN 4820-01-081-7478?

NSN 4820-01-081-7478 is a Seat,valve, manufactured by Biomarine Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-081-7478?

NSN 4820-01-081-7478 has 1 cross-referenced part number: 200-668 (Biomarine Inc).

What NSN replaces 4820-01-081-7478?

There are 2 known substitutes for 4820-01-081-7478: 5325-00-350-3413, 3110-00-554-2917. Verify interchangeability with system specifications before substitution.

What are the specifications of 200-668?

Key specifications for 200-668: Reference Number Differentiating Characteristics: CLEANED IN ACCORDANCE WITH MIL-P-52211. 1 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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