PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

100534Valve,safety Relief

American Turbo Systems Inc · NSN 4820-01-130-9549 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-130-9549 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-130-9549. Primary manufacturer part number: 100534.
Features
  • Valve,safety Relief — FSC 4820
  • Flow Control Device: PISTON
  • Style Designator: SAFETY RELIEF
  • Connection Type: FLANGE FIRST END
  • Valve Operation Method: AUTOMATIC
  • Bolt Hole Quantity: 6 FIRST END
  • Flange Face Design: PLAIN FIRST END
  • Flange Shape: ROUND WITH HOLES FIRST END
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-130-9549, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is American Turbo Systems Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-130-9549
Primary Part Number100534
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAmerican Turbo Systems Inc
StatusACTIVE
Flow Control DevicePISTON
Style DesignatorSAFETY RELIEF
Connection TypeFLANGE FIRST END
Valve Operation MethodAUTOMATIC
Bolt Hole Quantity6 FIRST END
Flange Face DesignPLAIN FIRST END
Flange ShapeROUND WITH HOLES FIRST END
Disk Loading MethodSPRING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4730-00-881-5536SAE J516 12-12 F240146CA INTERCHANGEABLE
Adapter,straight,tube to Hose
Sae International Dba Sae International
4710-01-296-4256 INTERCHANGEABLE
Tubing,nonmetallic
4820-01-559-0179100534 INTERCHANGEABLE
Valve,relief,pressure and Temper
Hydro Engineering Innovation, Llc
Cross-Reference Index
Part NumberManufacturer
100534 PRIMARY American Turbo Systems Inc (USA)
100534 Walker Power Systems, Inc. Dba Tiernay Turbines (USA)
Related Parts
4730-00-881-5536INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
SAE J516 12-12 F240146CA
4710-01-296-4256INTERCHANGEABLE
TUBING,NONMETALLIC
4820-01-559-0179INTERCHANGEABLE
VALVE,RELIEF,PRESSURE AND TEMPER
100534

Frequently Asked Questions

What is NSN 4820-01-130-9549?

NSN 4820-01-130-9549 is a Valve,safety Relief, manufactured by American Turbo Systems Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-130-9549?

NSN 4820-01-130-9549 has 2 cross-referenced part numbers: 100534 (American Turbo Systems Inc), 100534 (Walker Power Systems, Inc. Dba Tiernay Turbines).

What NSN replaces 4820-01-130-9549?

There are 3 known substitutes for 4820-01-130-9549: 4730-00-881-5536, 4710-01-296-4256, 4820-01-559-0179. Verify interchangeability with system specifications before substitution.

What are the specifications of 100534?

Key specifications for 100534: Flow Control Device: PISTON; Style Designator: SAFETY RELIEF; Connection Type: FLANGE FIRST END; Valve Operation Method: AUTOMATIC. 8 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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