PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

202586EValve,safety Relief

Name: 202586E
SKU: 4820-01-503-9166

Griswold Industries Dba Cla-Val Co · NSN 4820-01-503-9166 · FSC 4820 · No Item Name Available

Verified by PartsTable

NSN 4820-01-503-9166 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-503-9166. Primary manufacturer part number: 202586E.

4820-01-503-9166 — No Item Name Available illustration

Features

Valve,safety Relief — FSC 4820
6 verified cross-references
Primary manufacturer: Griswold Industries Dba Cla-Val Co

Applications

Flow control in piping systems
Pressure regulation
Steam and fluid isolation

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-503-9166, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Griswold Industries Dba Cla-Val Co. This item has 6 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,safety Relief
FSC / FSG	4820 — No Item Name Available (FSG 48)
Manufacturers	Griswold Industries Dba Cla-Val Co (CAGE 86184)

Technical Specifications

Parameter	Value
NSN	4820-01-503-9166
Primary Part Number	202586E
Item Name	Valve,safety Relief
FSC / FSG	4820 / 48 — No Item Name Available
Manufacturer	Griswold Industries Dba Cla-Val Co
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 9

3110-00-198-2082W205PP INTERCHANGEABLE

Bearing,ball,annular

Western Sky Industries Inc Dba Electromech Techologies

5305-00-208-4619 INTERCHANGEABLE

Screw,machine

5815-00-448-159274090 INTERCHANGEABLE

Shaft

Telemechanics Inc

5640-01-121-070274090 INTERCHANGEABLE

Insulation Blanket,thermal

Hdt Expeditionary Systems Inc

4820-01-139-189674092J INTERCHANGEABLE

Valve,globe

Griswold Industries Dba Cla-Val Co

2010-01-430-261674090 PC 6 .996 THK INTERCHANGEABLE

Stave,bearing,stave Shaped

American Metal Bearing Co Dba Amb Engineering & Machining Solutions

4820-01-503-432150M-5KR 2-1/2IN INTERCHANGEABLE

Valve,safety Relief

Griswold Industries Dba Cla-Val Co

4820-01-512-3777202417K INTERCHANGEABLE

Valve,diaphragm,stop

Griswold Industries Dba Cla-Val Co

5305-01-642-390274090-19 INTERCHANGEABLE

Screw,cap,socket Head

American Metal Bearing Co Dba Amb Engineering & Machining Solutions

Cross-Reference Index

Part Number	Manufacturer
74090 P/N 202586E	Griswold Industries Dba Cla-Val Co (USA)
202585-01E FIND NO. 1	Griswold Industries Dba Cla-Val Co (USA)
202585	Griswold Industries Dba Cla-Val Co (USA)
74090	Griswold Industries Dba Cla-Val Co (USA)
202586E PRIMARY	Griswold Industries Dba Cla-Val Co (USA)
50M-5KR 2-1/2IN FIND NO. 1	Griswold Industries Dba Cla-Val Co (USA)

Related Parts

3110-00-198-2082INTERCHANGEABLE

BEARING,BALL,ANNULAR

W205PP

5305-00-208-4619INTERCHANGEABLE

SCREW,MACHINE

5815-00-448-1592INTERCHANGEABLE

SHAFT

74090

5640-01-121-0702INTERCHANGEABLE

INSULATION BLANKET,THERMAL

74090

4820-01-139-1896INTERCHANGEABLE

VALVE,GLOBE

74092J

2010-01-430-2616INTERCHANGEABLE

STAVE,BEARING,STAVE SHAPED

74090 PC 6 .996 THK

4820-01-503-4321INTERCHANGEABLE

VALVE,SAFETY RELIEF

50M-5KR 2-1/2IN

4820-01-512-3777INTERCHANGEABLE

VALVE,DIAPHRAGM,STOP

202417K

5305-01-642-3902INTERCHANGEABLE

SCREW,CAP,SOCKET HEAD

74090-19

Frequently Asked Questions

What is NSN 4820-01-503-9166?

NSN 4820-01-503-9166 is a Valve,safety Relief, manufactured by Griswold Industries Dba Cla-Val Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-503-9166?

NSN 4820-01-503-9166 has 6 cross-referenced part numbers: 74090 P/N 202586E (Griswold Industries Dba Cla-Val Co), 202585-01E FIND NO. 1 (Griswold Industries Dba Cla-Val Co), 202585 (Griswold Industries Dba Cla-Val Co), 74090 (Griswold Industries Dba Cla-Val Co), 202586E (Griswold Industries Dba Cla-Val Co) and 1 more.

What NSN replaces 4820-01-503-9166?

There are 9 known substitutes for 4820-01-503-9166: 3110-00-198-2082, 5305-00-208-4619, 5815-00-448-1592 and 6 more. Verify interchangeability with system specifications before substitution.

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

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