PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20202EM51MValve,relief,pressure and Temper

Anderson Greenwood Lp Dba Anderson Greenwood Crosby · NSN 4820-01-130-6192 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-130-6192 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-130-6192. Primary manufacturer part number: 20202EM51M.
Features
  • Valve,relief,pressure and Temper — FSC 4820
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
  • 2 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 Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-130-6192, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-130-6192
Primary Part Number20202EM51M
Item NameValve,relief,pressure and Temper
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAnderson Greenwood Lp Dba Anderson Greenwood Crosby
StatusCANCELLED
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
4820-01-135-8153 INTERCHANGEABLE
Valve,safety Relief
Cross-Reference Index
Part NumberManufacturer
20202EM51M Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20202EM51ML1 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
4820-01-135-8153INTERCHANGEABLE
VALVE,SAFETY RELIEF

Frequently Asked Questions

What is NSN 4820-01-130-6192?

NSN 4820-01-130-6192 is a Valve,relief,pressure and Temper, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-130-6192?

NSN 4820-01-130-6192 has 2 cross-referenced part numbers: 20202EM51M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20202EM51ML1 (Naval Inventory Control Point Mechanicsburg).

What NSN replaces 4820-01-130-6192?

There is 1 known substitute for 4820-01-130-6192: 4820-01-135-8153. Verify interchangeability with system specifications before substitution.

What are the specifications of 20202EM51M?

Key specifications for 20202EM51M: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-130-6192 still in active supply?

NSN 4820-01-130-6192 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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