PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

510210Seat,valve

Aar Allen Services, Inc Dba Aar Component Services Wellington · NSN 4820-00-030-1680 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-030-1680 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-030-1680. Primary manufacturer part number: 510210.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: FLAT
  • Surface Treatment: PASSIVATE OVERALL
  • Material: STEEL COMP 440C OVERALL
  • Hardness Rating: 56.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
  • Seal Accommodation Type: GROOVED
  • 1 verified cross-reference
  • Primary manufacturer: Aar Allen Services, Inc Dba Aar Component Services Wellington
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 440c Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-030-1680, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Aar Allen Services, Inc Dba Aar Component Services Wellington. Government technical data includes 5 verified specifications, 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-030-1680
Primary Part Number510210
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAar Allen Services, Inc Dba Aar Component Services Wellington
StatusACTIVE
Seating Surface ShapeFLAT
Surface TreatmentPASSIVATE OVERALL
MaterialSTEEL COMP 440C OVERALL
Hardness Rating56.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
Seal Accommodation TypeGROOVED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5331-00-297-71067320658 INTERCHANGEABLE
O-Ring
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
510210 PRIMARY Aar Allen Services, Inc Dba Aar Component Services Wellington (USA)
Related Parts
5331-00-297-7106INTERCHANGEABLE
O-RING
7320658

Frequently Asked Questions

What is NSN 4820-00-030-1680?

NSN 4820-00-030-1680 is a Seat,valve, manufactured by Aar Allen Services, Inc Dba Aar Component Services Wellington, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-030-1680?

NSN 4820-00-030-1680 has 1 cross-referenced part number: 510210 (Aar Allen Services, Inc Dba Aar Component Services Wellington).

What NSN replaces 4820-00-030-1680?

There is 1 known substitute for 4820-00-030-1680: 5331-00-297-7106. Verify interchangeability with system specifications before substitution.

What are the specifications of 510210?

Key specifications for 510210: Seating Surface Shape: FLAT; Surface Treatment: PASSIVATE OVERALL; Material: STEEL COMP 440C OVERALL; Hardness Rating: 56.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL. 5 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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