PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30-1/2 SETValve,safety Relief

Aquatrol Inc · NSN 4820-00-935-1508 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-935-1508 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-935-1508. Primary manufacturer part number: 30-1/2 SET.
Features
  • Valve,safety Relief — FSC 4820
  • Disk Loading Method: SPRING
  • Style Designator: STRAIGHT THRU W/BAFFLE
  • Connection Type: THREADED EXTERNAL PIPE FIRST END
  • Thread Direction: RIGHT-HAND FIRST END
  • Bonnet Type: INSIDE SPRING
  • Material: COPPER ALLOY FLOW CONTROL DEVICE
  • Nominal Pipe Size Accommodated: 0.500 INCHES FIRST END IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Flow Control Device construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-935-1508, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Aquatrol Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-935-1508
Primary Part Number30-1/2 SET
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAquatrol Inc
StatusACTIVE
Disk Loading MethodSPRING
Style DesignatorSTRAIGHT THRU W/BAFFLE
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Thread DirectionRIGHT-HAND FIRST END
Bonnet TypeINSIDE SPRING
MaterialCOPPER ALLOY FLOW CONTROL DEVICE
Nominal Pipe Size Accommodated0.500 INCHES FIRST END IN
Surface TreatmentCHROMIUM AND NICKEL LOCATION NOT OTHERWISE SPECIFIED
Connection StylePLAIN (PIPE) FIRST END
Opening Pressure Setting33.0 POUNDS PER SQUARE INCH LBS
Flow Control DeviceDISK
Valve Discharge Flow Rate102.0 POUNDS PER HOUR LBS
Nominal Thread Size0.500 INCHES FIRST END IN
Thread Series DesignatorNPT FIRST END
Thread Quantity Per Inch14 FIRST END
Bonnet Attachment MethodTHREADED
Valve Operation MethodMANUAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5310-00-384-8643100154 INTERCHANGEABLE
Nut,plain,castellated,hexagon
Clark Material Handling Company
2510-00-675-4268 INTERCHANGEABLE
Plate,backing
5895-00-715-9567 INTERCHANGEABLE
Coupler,directional
5330-01-017-7148100-154 INTERCHANGEABLE
Seal,plain
Sheffer Corp
5310-01-022-4225102498 INTERCHANGEABLE
Nut,plain,hexagon
Triumph Engine Control Systems Llc
5998-01-022-4729 INTERCHANGEABLE
Circuit Card Assembly
4810-01-442-367410015-4 INTERCHANGEABLE
Valve,butterfly
Morpac Industries, Inc Div Actuator
5340-01-657-3008100154 INTERCHANGEABLE
Clip,retaining
Durable Controls Llc Dba Durable Controls Inc
6130-01-707-9623100154 INTERCHANGEABLE
Power Supply
Aviation Battery Systems Llc
Cross-Reference Index
Part NumberManufacturer
763710-001 American Sterilizer Company Dba Amsco Sterility Assurance Products (USA)
100154 Federal Equipment and Manufacturing Co., Inc. Div Federal Equipment & Manufacturing Co., Inc. (USA)
FX58 Federal Equipment and Manufacturing Co., Inc. Div Federal Equipment & Manufacturing Co., Inc. (USA)
PS58 Federal Equipment and Manufacturing Co., Inc. Div Federal Equipment & Manufacturing Co., Inc. (USA)
HDD1-2IN33LB Kunkle Industries Inc Lonergan Valve Div (USA)
30-1/2 SET PRIMARY Aquatrol Inc (USA)
P763710-001 Steris Corporation Dba Steris Applied Sterilization Technololgies (USA)
Related Parts
5310-00-384-8643INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
100154
2510-00-675-4268INTERCHANGEABLE
PLATE,BACKING
5895-00-715-9567INTERCHANGEABLE
COUPLER,DIRECTIONAL
5330-01-017-7148INTERCHANGEABLE
SEAL,PLAIN
100-154
5310-01-022-4225INTERCHANGEABLE
NUT,PLAIN,HEXAGON
102498
5998-01-022-4729INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4810-01-442-3674INTERCHANGEABLE
VALVE,BUTTERFLY
10015-4
5340-01-657-3008INTERCHANGEABLE
CLIP,RETAINING
100154
6130-01-707-9623INTERCHANGEABLE
POWER SUPPLY
100154

Frequently Asked Questions

What is NSN 4820-00-935-1508?

NSN 4820-00-935-1508 is a Valve,safety Relief, manufactured by Aquatrol Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-935-1508?

NSN 4820-00-935-1508 has 7 cross-referenced part numbers: 763710-001 (American Sterilizer Company Dba Amsco Sterility Assurance Products), 100154 (Federal Equipment and Manufacturing Co., Inc. Div Federal Equipment & Manufacturing Co., Inc.), FX58 (Federal Equipment and Manufacturing Co., Inc. Div Federal Equipment & Manufacturing Co., Inc.), PS58 (Federal Equipment and Manufacturing Co., Inc. Div Federal Equipment & Manufacturing Co., Inc.), HDD1-2IN33LB (Kunkle Industries Inc Lonergan Valve Div) and 2 more.

What NSN replaces 4820-00-935-1508?

There are 9 known substitutes for 4820-00-935-1508: 5310-00-384-8643, 2510-00-675-4268, 5895-00-715-9567 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30-1/2 SET?

Key specifications for 30-1/2 SET: Disk Loading Method: SPRING; Style Designator: STRAIGHT THRU W/BAFFLE; Connection Type: THREADED EXTERNAL PIPE FIRST END; Thread Direction: RIGHT-HAND FIRST END. 17 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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