PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20139,5115PA240009,38T45PSIValve,safety Relief

Anderson Greenwood Lp Dba Anderson Greenwood Crosby · NSN 4820-01-557-9346 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-557-9346 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-557-9346. Primary manufacturer part number: 20139,5115PA240009,38T45PSI.
Features
  • Valve,safety Relief — FSC 4820
  • Style Designator: ANGLE FLANGED ENDS
  • Material: STEEL BODY
  • Adjustable Pressure Range: +38.0 TO 45.0 POUNDS PER SQUARE INCH LBS
  • Valve Operation Method: AUTOMATIC OR MANUAL
  • Connection Type: FLANGE ALL ENDS
  • 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
  • Applications requiring Steel Body construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-557-9346, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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.

Technical Specifications
ParameterValue
NSN4820-01-557-9346
Primary Part Number20139,5115PA240009,38T45PSI
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAnderson Greenwood Lp Dba Anderson Greenwood Crosby
StatusACTIVE
Style DesignatorANGLE FLANGED ENDS
MaterialSTEEL BODY
Adjustable Pressure Range+38.0 TO 45.0 POUNDS PER SQUARE INCH LBS
Valve Operation MethodAUTOMATIC OR MANUAL
Connection TypeFLANGE ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5306-00-166-140620-58 INTERCHANGEABLE
Bolt,carriage
Motorola Automotive Electronics
5133-00-412-1747 INTERCHANGEABLE
Drill,twist
5905-00-488-2793 INTERCHANGEABLE
Resistor,variable,wire Wound,non
5998-01-034-408420139 INTERCHANGEABLE
Circuit Card Assembly
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
5331-01-092-2041 INTERCHANGEABLE
O-Ring
4820-01-143-13825115PA240009-184-202PSI (20139) INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-149-33232013901S0166 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5360-01-181-739020139 INTERCHANGEABLE
Spring,helical,compression
Unipress Corporation
4920-01-299-028220139 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
5331-01-670-54432-0139 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
Cross-Reference Index
Part NumberManufacturer
20139,5115PA240009,38T45PSI PRIMARY Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20139 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
5306-00-166-1406INTERCHANGEABLE
BOLT,CARRIAGE
20-58
5133-00-412-1747INTERCHANGEABLE
DRILL,TWIST
5905-00-488-2793INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
5998-01-034-4084INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
20139
5331-01-092-2041INTERCHANGEABLE
O-RING
4820-01-143-1382INTERCHANGEABLE
VALVE,SAFETY RELIEF
5115PA240009-184-202PSI (20139)
4820-01-149-3323INTERCHANGEABLE
VALVE,SAFETY RELIEF
2013901S0166
5360-01-181-7390INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
20139
4920-01-299-0282INTERCHANGEABLE
TEST PROGRAM SET
20139
5331-01-670-5443INTERCHANGEABLE
O-RING
2-0139
5306-01-706-1330INTERCHANGEABLE
BOLT,MACHINE
34-677
4310-01-706-5083INTERCHANGEABLE
CYLINDER SLEEVE
363-A7038

Frequently Asked Questions

What is NSN 4820-01-557-9346?

NSN 4820-01-557-9346 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 4820-01-557-9346?

NSN 4820-01-557-9346 has 2 cross-referenced part numbers: 20139,5115PA240009,38T45PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20139 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

What NSN replaces 4820-01-557-9346?

There are 12 known substitutes for 4820-01-557-9346: 5306-00-166-1406, 5133-00-412-1747, 5905-00-488-2793 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20139,5115PA240009,38T45PSI?

Key specifications for 20139,5115PA240009,38T45PSI: Style Designator: ANGLE FLANGED ENDS; Material: STEEL BODY; Adjustable Pressure Range: +38.0 TO 45.0 POUNDS PER SQUARE INCH LBS; Valve Operation Method: AUTOMATIC OR MANUAL. 6 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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