PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

135-00560Valve,safety Relief

Danfoss Power Solutions II, Llc · NSN 4820-00-095-2040 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-095-2040 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-095-2040. Primary manufacturer part number: 135-00560.
Features
  • Valve,safety Relief — FSC 4820
  • Thread Class: 3B FIRST END
  • Connection Style: GASKET SEAL(BOSS) FIRST END
  • Flow Control Device: POPPET
  • Disk Loading Method: SPRING
  • Operating Pressure: 85.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Thread Series Designator: UNF FIRST END
  • Nominal Thread Size: 0.437 INCHES FIRST END IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-095-2040, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Danfoss Power Solutions II, Llc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-095-2040
Primary Part Number135-00560
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDanfoss Power Solutions II, Llc
StatusCANCELLED
Thread Class3B FIRST END
Connection StyleGASKET SEAL(BOSS) FIRST END
Flow Control DevicePOPPET
Disk Loading MethodSPRING
Operating Pressure85.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Series DesignatorUNF FIRST END
Nominal Thread Size0.437 INCHES FIRST END IN
Opening Pressure Setting3.5 POUNDS PER SQUARE INCH LBS
Thread DirectionRIGHT-HAND FIRST END
Media for Which DesignedAIR SINGLE RESPONSE
Thread Quantity Per Inch20 FIRST END
Style DesignatorSTRAIGHT THRU
Valve Operation MethodMANUAL
Renewable Seat Ring TypeBONDED
Features ProvidedPRESSURE TIGHT OUTLET SIDE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3110-00-100-3570 INTERCHANGEABLE
Cone and Rollers,tapered Roller
5995-00-485-987621142-1 INTERCHANGEABLE
Lead,electrical
Eaton Corporation Div Eaton Fluid Power
5940-00-759-1403 INTERCHANGEABLE
Terminal Board
6515-01-721-1243682004 INTERCHANGEABLE
Infusor,pressure,blood-Intraveno
Merit Medical Systems Inc
Cross-Reference Index
Part NumberManufacturer
135-00560 PRIMARY Danfoss Power Solutions II, Llc (USA)
211421 PRIMARY Hydro-Aire Aerospace Corp (USA)
135-00560 Dana Corp Weatherhead Div (USA)
667536 Lockheed Martin Corp (USA)
Related Parts
3110-00-100-3570INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
5995-00-485-9876INTERCHANGEABLE
LEAD,ELECTRICAL
21142-1
5940-00-759-1403INTERCHANGEABLE
TERMINAL BOARD
6515-01-721-1243INTERCHANGEABLE
INFUSOR,PRESSURE,BLOOD-INTRAVENO
682004

Frequently Asked Questions

What is NSN 4820-00-095-2040?

NSN 4820-00-095-2040 is a Valve,safety Relief, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-095-2040?

NSN 4820-00-095-2040 has 4 cross-referenced part numbers: 135-00560 (Danfoss Power Solutions II, Llc), 211421 (Hydro-Aire Aerospace Corp), 135-00560 (Dana Corp Weatherhead Div), 667536 (Lockheed Martin Corp).

What NSN replaces 4820-00-095-2040?

There are 4 known substitutes for 4820-00-095-2040: 3110-00-100-3570, 5995-00-485-9876, 5940-00-759-1403 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 135-00560?

Key specifications for 135-00560: Thread Class: 3B FIRST END; Connection Style: GASKET SEAL(BOSS) FIRST END; Flow Control Device: POPPET; Disk Loading Method: SPRING. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-095-2040 still in active supply?

NSN 4820-00-095-2040 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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