PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20186 FIND 5Seat,valve

Anderson Greenwood Lp Dba Anderson Greenwood Crosby · NSN 4820-01-168-5684 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-168-5684 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-168-5684. Primary manufacturer part number: 20186 FIND 5.
Features
  • Seat,valve — FSC 4820
  • Thread Length: 1.000 INCHES NOMINAL SINGLE THREADED PORTION IN
  • Thread Class: 2A SINGLE THREADED PORTION A
  • Style Designator: PLAIN THREADED
  • Material: NICKEL ALLOY OVERALL
  • Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Thread Series Designator: UNEF SINGLE THREADED PORTION
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-168-5684, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-168-5684
Primary Part Number20186 FIND 5
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAnderson Greenwood Lp Dba Anderson Greenwood Crosby
StatusACTIVE
Thread Length1.000 INCHES NOMINAL SINGLE THREADED PORTION IN
Thread Class2A SINGLE THREADED PORTION A
Style DesignatorPLAIN THREADED
MaterialNICKEL ALLOY OVERALL
Material Document and ClassificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Thread Series DesignatorUNEF SINGLE THREADED PORTION
Body Inside Diameter0.750 INCHES NOMINAL IN
Seating Surface ShapeANGULAR
Thread Quantity Per Inch18 SINGLE THREADED PORTION
Criticality Code JustificationZZZY
Nominal Thread Size1.125 INCHES SINGLE THREADED PORTION IN
Seat Angle in Deg45.000 MINIMUM AND 60.000 MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4820-00-490-325707410002127 INTERCHANGEABLE
Seat,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4810-00-943-1024 INTERCHANGEABLE
Seat,valve
4820-01-045-1758 INTERCHANGEABLE
Seat,valve
4820-01-218-8028 INTERCHANGEABLE
Seat,valve
4820-01-294-2437 INTERCHANGEABLE
Seat,valve
5360-01-440-445520213FIND6A PN B05336.75UM.127 INTERCHANGEABLE
Spring,helical,compression
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
4820-01-546-4558 INTERCHANGEABLE
Seat,valve
Cross-Reference Index
Part NumberManufacturer
20186 FIND 5 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20213FIND4 Naval Inventory Control Point Mechanicsburg (USA)
20266FN5 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
B07410.002.127 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20274FN5 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20203PC5 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
B7410.002.127 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20186PC5 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A07410.002.127 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A7410.002.127 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20213FIND4 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
20213PC4 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20267FN5 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20213FIND4 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
8721 PC 4 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
4820-00-490-3257INTERCHANGEABLE
SEAT,VALVE
07410002127
4810-00-943-1024INTERCHANGEABLE
SEAT,VALVE
4820-01-045-1758INTERCHANGEABLE
SEAT,VALVE
4820-01-218-8028INTERCHANGEABLE
SEAT,VALVE
4820-01-294-2437INTERCHANGEABLE
SEAT,VALVE
5360-01-440-4455INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
20213FIND6A PN B05336.75UM.127
4820-01-546-4558INTERCHANGEABLE
SEAT,VALVE

Frequently Asked Questions

What is NSN 4820-01-168-5684?

NSN 4820-01-168-5684 is a Seat,valve, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-168-5684?

NSN 4820-01-168-5684 has 15 cross-referenced part numbers: 20186 FIND 5 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20213FIND4 (Naval Inventory Control Point Mechanicsburg), 20266FN5 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), B07410.002.127 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20274FN5 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby) and 10 more.

What NSN replaces 4820-01-168-5684?

There are 7 known substitutes for 4820-01-168-5684: 4820-00-490-3257, 4810-00-943-1024, 4820-01-045-1758 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20186 FIND 5?

Key specifications for 20186 FIND 5: Thread Length: 1.000 INCHES NOMINAL SINGLE THREADED PORTION IN; Thread Class: 2A SINGLE THREADED PORTION A; Style Designator: PLAIN THREADED; Material: NICKEL ALLOY OVERALL. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com