PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8720REVGPC4Seat,valve

Anderson Greenwood Lp Dba Anderson Greenwood Crosby · NSN 4820-00-491-9908 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-491-9908 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-491-9908. Primary manufacturer part number: 8720REVGPC4.
Features
  • Seat,valve — FSC 4820
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • Criticality Code Justification: ZZZY
  • 8 verified cross-references
  • Primary manufacturer: Anderson Greenwood Lp Dba Anderson Greenwood Crosby
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-491-9908, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-491-9908
Primary Part Number8720REVGPC4
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAnderson Greenwood Lp Dba Anderson Greenwood Crosby
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-008-5087 INTERCHANGEABLE
Seat,valve
4820-00-228-9061 INTERCHANGEABLE
Valve,relief,pressure and Temper
2530-00-424-14397086479 INTERCHANGEABLE
Cap
U S Army Tank Automotive Command Amsta-Im-Mm
4820-00-570-0032 INTERCHANGEABLE
Seat,valve
5960-00-780-0146713090-18 INTERCHANGEABLE
Electron Tube
Raytheon Company Div Rmd Strategic
5360-00-852-7151 INTERCHANGEABLE
Spring,helical,compression
4820-01-145-944707420002127 INTERCHANGEABLE
Seat,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-162-0067E8614H51M INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-173-9849 INTERCHANGEABLE
Disk,valve
4820-01-177-805310502 ITEM 10 INTERCHANGEABLE
Valve,bleeder,hydraulic System
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
Cross-Reference Index
Part NumberManufacturer
8720REVGPC4 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
8720PC4 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A7420.002.127 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
20282FN5 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20204 PC.4 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
8614 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
8716PC4 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
C12743PC4 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
4820-00-008-5087INTERCHANGEABLE
SEAT,VALVE
4820-00-228-9061INTERCHANGEABLE
VALVE,RELIEF,PRESSURE AND TEMPER
2530-00-424-1439INTERCHANGEABLE
CAP
7086479
4820-00-570-0032INTERCHANGEABLE
SEAT,VALVE
5960-00-780-0146INTERCHANGEABLE
ELECTRON TUBE
713090-18
5360-00-852-7151INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4820-01-145-9447INTERCHANGEABLE
SEAT,VALVE
07420002127
4820-01-162-0067INTERCHANGEABLE
VALVE,SAFETY RELIEF
E8614H51M
4820-01-173-9849INTERCHANGEABLE
DISK,VALVE
4820-01-177-8053INTERCHANGEABLE
VALVE,BLEEDER,HYDRAULIC SYSTEM
10502 ITEM 10
6220-01-246-5311INTERCHANGEABLE
RETAINER,LENS
8614-1
7025-01-322-7684INTERCHANGEABLE
TERMINAL,DATA PROCESSING
9220

Frequently Asked Questions

What is NSN 4820-00-491-9908?

NSN 4820-00-491-9908 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 4820-00-491-9908?

NSN 4820-00-491-9908 has 8 cross-referenced part numbers: 8720REVGPC4 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 8720PC4 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), A7420.002.127 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20282FN5 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20204 PC.4 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby) and 3 more.

What NSN replaces 4820-00-491-9908?

There are 12 known substitutes for 4820-00-491-9908: 4820-00-008-5087, 4820-00-228-9061, 2530-00-424-1439 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8720REVGPC4?

Key specifications for 8720REVGPC4: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.; Criticality Code Justification: ZZZY. 2 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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