PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20269B51MValve,relief,pressure and Temper

Anderson Greenwood Lp Dba Anderson Greenwood Crosby · NSN 4820-01-203-8853 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-203-8853 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-203-8853. Primary manufacturer part number: 20269B51M.
Features
  • Valve,relief,pressure and Temper — FSC 4820
  • 3 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 4820-01-203-8853, 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. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,relief,pressure and Temper
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersAnderson Greenwood Lp Dba Anderson Greenwood Crosby (CAGE 01343)
Technical Specifications
ParameterValue
NSN4820-01-203-8853
Primary Part Number20269B51M
Item NameValve,relief,pressure and Temper
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAnderson Greenwood Lp Dba Anderson Greenwood Crosby
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5331-00-412-902306689232222 INTERCHANGEABLE
O-Ring
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
5360-00-597-4883 INTERCHANGEABLE
Spring,helical,extension
3110-01-016-784020-269 INTERCHANGEABLE
Bearing,ball,annular
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
5962-01-050-6955MM54C175J INTERCHANGEABLE
Microcircuit,digital
National Semiconductor Corporation
2910-01-066-417020269 INTERCHANGEABLE
Button,thrust Injection Pump Gea
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5360-01-228-0867 INTERCHANGEABLE
Spring,helical,compression
4820-01-246-5824 INTERCHANGEABLE
Stem,fluid Valve
4730-01-246-5854 INTERCHANGEABLE
Adapter Bushing
4820-01-246-9863 INTERCHANGEABLE
Seat,valve
3010-01-445-800020-269 INTERCHANGEABLE
Coupling,shaft,flexible
Balmar Acquisition Company Llc
Cross-Reference Index
Part NumberManufacturer
20269B51M Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20269ASSYB51M(SPCLN) Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20269 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
5331-00-412-9023INTERCHANGEABLE
O-RING
06689232222
5360-00-597-4883INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
3110-01-016-7840INTERCHANGEABLE
BEARING,BALL,ANNULAR
20-269
5962-01-050-6955INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
MM54C175J
2910-01-066-4170INTERCHANGEABLE
BUTTON,THRUST INJECTION PUMP GEA
20269
5360-01-228-0867INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4820-01-246-5824INTERCHANGEABLE
STEM,FLUID VALVE
4730-01-246-5854INTERCHANGEABLE
ADAPTER BUSHING
4820-01-246-9863INTERCHANGEABLE
SEAT,VALVE
3010-01-445-8000INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
20-269
4130-01-480-4196INTERCHANGEABLE
FILTER MEDIA,AIR CONDITIONING
24121GR
6520-01-590-3406INTERCHANGEABLE
HANDPIECE SET,DENTAL
90-5000M/C-1

Frequently Asked Questions

What is NSN 4820-01-203-8853?

NSN 4820-01-203-8853 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: active.

What are the part numbers for NSN 4820-01-203-8853?

NSN 4820-01-203-8853 has 3 cross-referenced part numbers: 20269B51M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20269ASSYB51M(SPCLN) (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20269 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

What NSN replaces 4820-01-203-8853?

There are 12 known substitutes for 4820-01-203-8853: 5331-00-412-9023, 5360-00-597-4883, 3110-01-016-7840 and 9 more. Verify interchangeability with system specifications before substitution.

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