PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

252410Valve,safety Relief

Time Manufacturing Company Dba Time Manufacturing Company · NSN 4820-00-189-5371 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-189-5371 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-189-5371. Primary manufacturer part number: 252410.
Features
  • Valve,safety Relief — FSC 4820
  • Operating Pressure: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS
  • Valve Discharge Flow Rate: 40.0 GALLONS PER MINUTE
  • Flow Control Device: SPOOL
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Thread Series Designator: NPT ALL ENDS
  • Nominal Thread Size: 0.750 INCHES ALL ENDS IN
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 4820-00-189-5371, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Time Manufacturing Company Dba Time Manufacturing Company. Government technical data includes 20 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-189-5371
Primary Part Number252410
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTime Manufacturing Company Dba Time Manufacturing Company
StatusACTIVE
Operating Pressure6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Connection StylePLAIN,OPTIONAL END(PIPE) ALL ENDS
Valve Discharge Flow Rate40.0 GALLONS PER MINUTE
Flow Control DeviceSPOOL
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Thread Series DesignatorNPT ALL ENDS
Nominal Thread Size0.750 INCHES ALL ENDS IN
Operating Pressure6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Opening Pressure Setting1500.0 POUNDS PER SQUARE INCH LBS
MaterialSTEEL BODY
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Style DesignatorSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
Opening Pressure Setting1500.0 POUNDS PER SQUARE INCH LBS
Nominal Thread Size0.750 INCHES ALL ENDS IN
Thread Series DesignatorNPT ALL ENDS
MaterialSTEEL BODY
Style DesignatorSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Thread DirectionRIGHT-HAND ALL ENDS
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5962-00-106-42871820-0077 INTERCHANGEABLE
Microcircuit,digital
Hewlett-Packard Company Dba HP
5133-00-228-1400 INTERCHANGEABLE
Drill,twist
6110-00-832-5769A2524-1 INTERCHANGEABLE
Distribution Box
Palmer Electric Co Div Tabet Mfg Co Inc
2840-00-923-19392524-10 INTERCHANGEABLE
Valve Assembly,lubricating Oil D
Tactair Fluid Controls Inc
5331-01-005-405319357 INTERCHANGEABLE
O-Ring
Parker Hannifin Corporation Div O-Ring Division
4820-01-187-71071A32F6-30SV INTERCHANGEABLE
Cartridge,relief Valve
Danfoss Fluid Power Inc Easley Opn
9150-01-439-187325241 INTERCHANGEABLE
Lubricating Oil,weapons
Mil-Comm Products Co, Inc Div Mil-Comm
5210-01-511-514125-24-1 INTERCHANGEABLE
Gage,turning Radius
Hunter Engineering Company Inc
7690-01-667-4387 INTERCHANGEABLE
Label
Cross-Reference Index
Part NumberManufacturer
1A32F6-30S Danfoss Fluid Power Inc Easley Opn (USA)
252410 PRIMARY Time Manufacturing Company Dba Time Manufacturing Company (USA)
25241 Time Manufacturing Company Dba Time Manufacturing Company (USA)
1A3001-B-6P-E-C-XXX PRIMARY Danfoss Fluid Power Inc Easley Opn (USA)
Related Parts
5962-00-106-4287INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
1820-0077
5133-00-228-1400INTERCHANGEABLE
DRILL,TWIST
6110-00-832-5769INTERCHANGEABLE
DISTRIBUTION BOX
A2524-1
2840-00-923-1939INTERCHANGEABLE
VALVE ASSEMBLY,LUBRICATING OIL D
2524-10
5331-01-005-4053INTERCHANGEABLE
O-RING
19357
4820-01-187-7107INTERCHANGEABLE
CARTRIDGE,RELIEF VALVE
1A32F6-30SV
9150-01-439-1873INTERCHANGEABLE
LUBRICATING OIL,WEAPONS
25241
5210-01-511-5141INTERCHANGEABLE
GAGE,TURNING RADIUS
25-24-1
7690-01-667-4387INTERCHANGEABLE
LABEL

Frequently Asked Questions

What is NSN 4820-00-189-5371?

NSN 4820-00-189-5371 is a Valve,safety Relief, manufactured by Time Manufacturing Company Dba Time Manufacturing Company, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-189-5371?

NSN 4820-00-189-5371 has 4 cross-referenced part numbers: 1A32F6-30S (Danfoss Fluid Power Inc Easley Opn), 252410 (Time Manufacturing Company Dba Time Manufacturing Company), 25241 (Time Manufacturing Company Dba Time Manufacturing Company), 1A3001-B-6P-E-C-XXX (Danfoss Fluid Power Inc Easley Opn).

What NSN replaces 4820-00-189-5371?

There are 9 known substitutes for 4820-00-189-5371: 5962-00-106-4287, 5133-00-228-1400, 6110-00-832-5769 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 252410?

Key specifications for 252410: Operating Pressure: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Valve Discharge Flow Rate: 40.0 GALLONS PER MINUTE; Flow Control Device: SPOOL. 20 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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