PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

220864Valve,safety Relief

Gh Bettis a Galveston-Houston Co · NSN 4820-00-595-5088 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-595-5088 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-595-5088. Primary manufacturer part number: 220864.
Features
  • Valve,safety Relief — FSC 4820
  • Thread Direction: RIGHT-HAND FIRST END
  • Style Designator: STRAIGHT THRU W/BAFFLE
  • Connection Type: THREADED EXTERNAL PIPE FIRST END
  • Material Document and Classification: AISI 316 ASSN STD SINGLE MATERIAL RESPONSE BODY
  • Nominal Thread Size: 0.375 INCHES FIRST END IN
  • Valve Operation Method: AUTOMATIC
  • Thread Series Designator: NPT FIRST END
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 316 Body construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-595-5088, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Gh Bettis a Galveston-Houston Co. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-595-5088
Primary Part Number220864
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGh Bettis a Galveston-Houston Co
StatusACTIVE
Thread DirectionRIGHT-HAND FIRST END
Style DesignatorSTRAIGHT THRU W/BAFFLE
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Material Document and ClassificationAISI 316 ASSN STD SINGLE MATERIAL RESPONSE BODY
Nominal Thread Size0.375 INCHES FIRST END IN
Valve Operation MethodAUTOMATIC
Thread Series DesignatorNPT FIRST END
MaterialSTEEL COMP 316 BODY
Connection StylePLAIN (PIPE) FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6110-00-081-0923 INTERCHANGEABLE
Voltage Regulator Subassembly
2815-00-132-111620854 INTERCHANGEABLE
Core Assembly
Holset Engineering Co Inc Sub of Cummins Engine Co
5940-00-177-4428 INTERCHANGEABLE
Terminal,stud
6515-00-300-196070-9002 INTERCHANGEABLE
Adenotome
Sklar Corporation Dba Sklar Instruments
5342-00-869-1154 INTERCHANGEABLE
Boot
4140-00-976-5570020854 INTERCHANGEABLE
Fan,centrifugal
Rotron Incorporated
4820-01-064-771720854 INTERCHANGEABLE
Stem,fluid Valve
Schneider Electric Systems Usa Inc
4720-01-165-8385331748 INTERCHANGEABLE
Hose,preformed
General Motors Llc Dba General Motors Llc
5961-01-439-0139 INTERCHANGEABLE
Semiconductor Device,diode
6640-01-498-44482591F95 INTERCHANGEABLE
Rack,test Tube,laboratory
Arthur H. Thomas Company
Cross-Reference Index
Part NumberManufacturer
220864 Gh Bettis a Galveston-Houston Co (USA)
BM22346PC37 Gh Bettis a Galveston-Houston Co (USA)
20854 Decatur Iron and Steel Co (USA)
20854 Gh Bettis a Galveston-Houston Co (USA)
020854 Gh Bettis a Galveston-Houston Co (USA)
A220854 Gh Bettis a Galveston-Houston Co (USA)
Related Parts
6110-00-081-0923INTERCHANGEABLE
VOLTAGE REGULATOR SUBASSEMBLY
2815-00-132-1116INTERCHANGEABLE
CORE ASSEMBLY
20854
5940-00-177-4428INTERCHANGEABLE
TERMINAL,STUD
6515-00-300-1960INTERCHANGEABLE
ADENOTOME
70-9002
5342-00-869-1154INTERCHANGEABLE
BOOT
4140-00-976-5570INTERCHANGEABLE
FAN,CENTRIFUGAL
020854
4820-01-064-7717INTERCHANGEABLE
STEM,FLUID VALVE
20854
4720-01-165-8385INTERCHANGEABLE
HOSE,PREFORMED
331748
5961-01-439-0139INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
6640-01-498-4448INTERCHANGEABLE
RACK,TEST TUBE,LABORATORY
2591F95

Frequently Asked Questions

What is NSN 4820-00-595-5088?

NSN 4820-00-595-5088 is a Valve,safety Relief, manufactured by Gh Bettis a Galveston-Houston Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-595-5088?

NSN 4820-00-595-5088 has 6 cross-referenced part numbers: 220864 (Gh Bettis a Galveston-Houston Co), BM22346PC37 (Gh Bettis a Galveston-Houston Co), 20854 (Decatur Iron and Steel Co), 20854 (Gh Bettis a Galveston-Houston Co), 020854 (Gh Bettis a Galveston-Houston Co) and 1 more.

What NSN replaces 4820-00-595-5088?

There are 10 known substitutes for 4820-00-595-5088: 6110-00-081-0923, 2815-00-132-1116, 5940-00-177-4428 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 220864?

Key specifications for 220864: Thread Direction: RIGHT-HAND FIRST END; Style Designator: STRAIGHT THRU W/BAFFLE; Connection Type: THREADED EXTERNAL PIPE FIRST END; Material Document and Classification: AISI 316 ASSN STD SINGLE MATERIAL RESPONSE BODY. 9 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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