PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SS4P2MValve,bleeder,hydraulic System

Swagelok Co · NSN 4820-00-116-2121 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-116-2121 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-116-2121. Primary manufacturer part number: SS4P2M.
Features
  • Valve,bleeder,hydraulic System — FSC 4820
  • Maximum Operating Temp: 600.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Operating Pressure: 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE
  • Material: STEEL COMP 316 FLOW CONTROL DEVICE
  • Flow Control Device: POPPET
  • Nominal Thread Size: 0.125 INCHES ALL ENDS IN
  • Material: STEEL COMP 316 BODY
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 316 Flow Control Device construction
General Description

The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-00-116-2121, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Swagelok Co. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 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
NSN4820-00-116-2121
Primary Part NumberSS4P2M
Item NameValve,bleeder,hydraulic System
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSwagelok Co
StatusACTIVE
Maximum Operating Temp600.0 FAHRENHEIT SINGLE RESPONSE DEGF
Operating Pressure4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
MaterialSTEEL COMP 316 FLOW CONTROL DEVICE
Flow Control DevicePOPPET
Nominal Thread Size0.125 INCHES ALL ENDS IN
MaterialSTEEL COMP 316 BODY
Connection StylePLAIN (PIPE) ALL ENDS
Thread DirectionRIGHT-HAND ALL ENDS
Media for Which DesignedAIR FIRST RESPONSE
Thread Series DesignatorNPT ALL ENDS
Valve Operation MethodMANUAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5930-00-815-0310342C271H01 INTERCHANGEABLE
Switch,thermostatic
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5961-01-047-51611N5818 INTERCHANGEABLE
Semiconductor Device,diode
Semiconductor Components Industries, Llc Dba Semiconductor Components Industries Llc Div Corporate Headquarters
4820-01-080-96116610M2Y INTERCHANGEABLE
Valve,bleeder,hydraulic System
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
Cross-Reference Index
Part NumberManufacturer
SS4P2M PRIMARY Swagelok Co (USA)
20-1130 Eastern Microwave Corp (USA)
6097367 Naval Sea Systems Command (USA)
SS4P2M Nupro Co (USA)
516-02-002 Logetronics Corporation (USA)
Related Parts
5930-00-815-0310INTERCHANGEABLE
SWITCH,THERMOSTATIC
342C271H01
5961-01-047-5161INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1N5818
4820-01-080-9611INTERCHANGEABLE
VALVE,BLEEDER,HYDRAULIC SYSTEM
6610M2Y

Frequently Asked Questions

What is NSN 4820-00-116-2121?

NSN 4820-00-116-2121 is a Valve,bleeder,hydraulic System, manufactured by Swagelok Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-116-2121?

NSN 4820-00-116-2121 has 5 cross-referenced part numbers: SS4P2M (Swagelok Co), 20-1130 (Eastern Microwave Corp), 6097367 (Naval Sea Systems Command), SS4P2M (Nupro Co), 516-02-002 (Logetronics Corporation).

What NSN replaces 4820-00-116-2121?

There are 3 known substitutes for 4820-00-116-2121: 5930-00-815-0310, 5961-01-047-5161, 4820-01-080-9611. Verify interchangeability with system specifications before substitution.

What are the specifications of SS4P2M?

Key specifications for SS4P2M: Maximum Operating Temp: 600.0 FAHRENHEIT SINGLE RESPONSE DEGF; Operating Pressure: 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE; Material: STEEL COMP 316 FLOW CONTROL DEVICE. 12 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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