PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

202024CM51MValve,safety Relief

Anderson Greenwood Lp Dba Anderson Greenwood Crosby · NSN 4820-01-138-2543 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-138-2543 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-138-2543. Primary manufacturer part number: 202024CM51M.
Features
  • Valve,safety Relief — 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
  • 4 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,safety Relief, cataloged under National Stock Number 4820-01-138-2543, 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 4 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
NSN4820-01-138-2543
Primary Part Number202024CM51M
Item NameValve,safety Relief
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
6130-00-237-0194D161871D INTERCHANGEABLE
Rectifier,metallic
Lucent Technologies Inc Corporate Headquarters
5360-00-254-1479 INTERCHANGEABLE
Spring,helical,compression
5905-00-494-7886 INTERCHANGEABLE
Resistor,thermal
5310-00-527-4689 INTERCHANGEABLE
Washer,flat
5895-00-572-4501 INTERCHANGEABLE
Driver,soil Anchor
5120-00-580-2359EX-2 INTERCHANGEABLE
Extractor,screw
Stanley Tools Div of Stanley Works
2915-00-715-41266827169 INTERCHANGEABLE
Cover Assy,coordina
Rolls-Royce Corporation
6505-01-068-7667 INTERCHANGEABLE
Lidocaine Hydrochloride Injectio
5330-01-092-146120-20-2 INTERCHANGEABLE
Gasket
Clark-Reliance Llc Dba Jerguson Gage & Valve
5998-01-132-370720202 INTERCHANGEABLE
Electronic Components Assembly
L3 Technologies, Inc. Div Communication Systems-West
Cross-Reference Index
Part NumberManufacturer
202024CM51M Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
202024CM51M Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
20202 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
20202 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
6130-00-237-0194INTERCHANGEABLE
RECTIFIER,METALLIC
D161871D
5360-00-254-1479INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5905-00-494-7886INTERCHANGEABLE
RESISTOR,THERMAL
5310-00-527-4689INTERCHANGEABLE
WASHER,FLAT
5895-00-572-4501INTERCHANGEABLE
DRIVER,SOIL ANCHOR
5120-00-580-2359INTERCHANGEABLE
EXTRACTOR,SCREW
EX-2
2915-00-715-4126INTERCHANGEABLE
COVER ASSY,COORDINA
6827169
6505-01-068-7667INTERCHANGEABLE
LIDOCAINE HYDROCHLORIDE INJECTIO
5330-01-092-1461INTERCHANGEABLE
GASKET
20-20-2
5998-01-132-3707INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
20202
4820-01-135-8153INTERCHANGEABLE
VALVE,SAFETY RELIEF
5961-01-169-6517INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 4820-01-138-2543?

NSN 4820-01-138-2543 is a Valve,safety Relief, 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 4820-01-138-2543?

NSN 4820-01-138-2543 has 4 cross-referenced part numbers: 202024CM51M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 202024CM51M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20202 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20202 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

What NSN replaces 4820-01-138-2543?

There are 12 known substitutes for 4820-01-138-2543: 6130-00-237-0194, 5360-00-254-1479, 5905-00-494-7886 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 202024CM51M?

Key specifications for 202024CM51M: 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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