PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

115657176FN94Valve,safety Relief

Bird-Johnson Propeller Company, Llc · NSN 4820-01-340-4036 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-340-4036 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-340-4036. Primary manufacturer part number: 115657176FN94.
Features
  • Valve,safety Relief — FSC 4820
  • Connection Type: UNTHREADED CARTRIDGE ALL ENDS
  • Opening Pressure Setting: 500.0 POUNDS PER SQUARE INCH LBS
  • Material: STEEL BODY
  • Connection Style: GROOVED (DROP-IN CARTRIDGE) ALL ENDS
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE PACKING
  • Valve Operation Method: AUTOMATIC
  • 4 verified cross-references
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 4820-01-340-4036, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Bird-Johnson Propeller Company, Llc. Government technical data includes 6 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-340-4036
Primary Part Number115657176FN94
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerBird-Johnson Propeller Company, Llc
StatusACTIVE
Connection TypeUNTHREADED CARTRIDGE ALL ENDS
Opening Pressure Setting500.0 POUNDS PER SQUARE INCH LBS
MaterialSTEEL BODY
Connection StyleGROOVED (DROP-IN CARTRIDGE) ALL ENDS
MaterialPLASTIC POLYTETRAFLUOROETHYLENE PACKING
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5315-00-039-5453198-4 INTERCHANGEABLE
Pin,straight,headless
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
4730-00-045-97711170480 INTERCHANGEABLE
Plug,pipe,magnetic
Chrysler Corp Dayton Plant 1
2530-00-469-7847 INTERCHANGEABLE
Tank,pressure
5950-00-645-9133 INTERCHANGEABLE
Reactor
5998-01-056-274068D040058-2003 INTERCHANGEABLE
Extender Card,electronic Test
The Boeing Company Div Defense
5815-01-084-2293 INTERCHANGEABLE
Pulley
6160-01-179-70181984 INTERCHANGEABLE
Tray,battery
Hollingsead International, Llc
5915-01-330-0551G452150-1 INTERCHANGEABLE
Filter,band Pass
Raytheon Company Dba Raytheon Co
Cross-Reference Index
Part NumberManufacturer
115657175FN94 Bird-Johnson Propeller Company, Llc (USA)
1984 Kepner Products Co Div Kepner Products Company (USA)
115657176FN94 PRIMARY Bird-Johnson Propeller Company, Llc (USA)
P-2-1-27 Bird-Johnson Propeller Company, Llc (USA)
Related Parts
5315-00-039-5453INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
198-4
4730-00-045-9771INTERCHANGEABLE
PLUG,PIPE,MAGNETIC
1170480
2530-00-469-7847INTERCHANGEABLE
TANK,PRESSURE
5950-00-645-9133INTERCHANGEABLE
REACTOR
5998-01-056-2740INTERCHANGEABLE
EXTENDER CARD,ELECTRONIC TEST
68D040058-2003
5815-01-084-2293INTERCHANGEABLE
PULLEY
6160-01-179-7018INTERCHANGEABLE
TRAY,BATTERY
1984
5915-01-330-0551INTERCHANGEABLE
FILTER,BAND PASS
G452150-1

Frequently Asked Questions

What is NSN 4820-01-340-4036?

NSN 4820-01-340-4036 is a Valve,safety Relief, manufactured by Bird-Johnson Propeller Company, Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-340-4036?

NSN 4820-01-340-4036 has 4 cross-referenced part numbers: 115657175FN94 (Bird-Johnson Propeller Company, Llc), 1984 (Kepner Products Co Div Kepner Products Company), 115657176FN94 (Bird-Johnson Propeller Company, Llc), P-2-1-27 (Bird-Johnson Propeller Company, Llc).

What NSN replaces 4820-01-340-4036?

There are 8 known substitutes for 4820-01-340-4036: 5315-00-039-5453, 4730-00-045-9771, 2530-00-469-7847 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 115657176FN94?

Key specifications for 115657176FN94: Connection Type: UNTHREADED CARTRIDGE ALL ENDS; Opening Pressure Setting: 500.0 POUNDS PER SQUARE INCH LBS; Material: STEEL BODY; Connection Style: GROOVED (DROP-IN CARTRIDGE) ALL ENDS. 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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