PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6983491-25Retainer,seat,valve

Naval Sea Systems Command · NSN 4810-01-459-5633 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-01-459-5633 — this item is cataloged by the U.S. Government under National Stock Number 4810-01-459-5633. Primary manufacturer part number: 6983491-25.
Features
  • Retainer,seat,valve — FSC 4810
  • Material: PLASTIC
  • Valve Design Control Activity: 53711
  • Valve Size for Which Designed: 1.000 INCHES IN
  • Material Document and Classification: ASTM D3013 ASSN STD SINGLE MATERIAL RESPONSE
  • 3 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Plastic construction
General Description

The Retainer,seat,valve, cataloged under National Stock Number 4810-01-459-5633, is classified within Federal Supply Class 4810 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 4 verified specifications, 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4810-01-459-5633
Primary Part Number6983491-25
Item NameRetainer,seat,valve
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
MaterialPLASTIC
Valve Design Control Activity53711
Valve Size for Which Designed1.000 INCHES IN
Material Document and ClassificationASTM D3013 ASSN STD SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4820-01-459-5635803-6983491 PC 29 INTERCHANGEABLE
Retainer,seat,valve
Naval Sea Systems Command
4820-01-459-5636803-6983491 PC 23 INTERCHANGEABLE
Retainer,seat,valve
Naval Sea Systems Command
4320-01-459-6446803-6983491 INTERCHANGEABLE
Connector,fluid,pump
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
6983491-25 PRIMARY Naval Sea Systems Command (USA)
803-6983491 PC 25 Naval Sea Systems Command (USA)
803-6983491 Naval Sea Systems Command (USA)
Related Parts
4820-01-459-5635INTERCHANGEABLE
RETAINER,SEAT,VALVE
803-6983491 PC 29
4820-01-459-5636INTERCHANGEABLE
RETAINER,SEAT,VALVE
803-6983491 PC 23
4320-01-459-6446INTERCHANGEABLE
CONNECTOR,FLUID,PUMP
803-6983491

Frequently Asked Questions

What is NSN 4810-01-459-5633?

NSN 4810-01-459-5633 is a Retainer,seat,valve, manufactured by Naval Sea Systems Command, classified under FSC 4810 (No Item Name Available). Status: active.

What are the part numbers for NSN 4810-01-459-5633?

NSN 4810-01-459-5633 has 3 cross-referenced part numbers: 6983491-25 (Naval Sea Systems Command), 803-6983491 PC 25 (Naval Sea Systems Command), 803-6983491 (Naval Sea Systems Command).

What NSN replaces 4810-01-459-5633?

There are 3 known substitutes for 4810-01-459-5633: 4820-01-459-5635, 4820-01-459-5636, 4320-01-459-6446. Verify interchangeability with system specifications before substitution.

What are the specifications of 6983491-25?

Key specifications for 6983491-25: Material: PLASTIC; Valve Design Control Activity: 53711; Valve Size for Which Designed: 1.000 INCHES IN; Material Document and Classification: ASTM D3013 ASSN STD SINGLE MATERIAL RESPONSE. 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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