PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

127221-020Valve,regulating,fluid Pressure

Ingersoll-Rand Company Dba Ingersoll-Rand · NSN 4820-01-171-6701 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-171-6701 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-171-6701. Primary manufacturer part number: 127221-020.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Filter: NOT INCLUDED
  • Material: ZINC BODY
  • End Connection Quantity: 2
  • Media for Which Designed: AIR
  • First End Connection Type: THREADED INTERNAL PIPE
  • Body Style: STRAIGHT THRU
  • Thread Size and Series/type Designator: 1/4-18 NPT FIRST END
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Zinc Body construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-171-6701, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Ingersoll-Rand Company Dba Ingersoll-Rand. Government technical data includes 17 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: Active.

Technical Specifications
ParameterValue
NSN4820-01-171-6701
Primary Part Number127221-020
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerIngersoll-Rand Company Dba Ingersoll-Rand
StatusACTIVE
FilterNOT INCLUDED
MaterialZINC BODY
End Connection Quantity2
Media for Which DesignedAIR
First End Connection TypeTHREADED INTERNAL PIPE
Body StyleSTRAIGHT THRU
Thread Size and Series/type Designator1/4-18 NPT FIRST END
First End Style DesignatorPLAIN
Valve Loading MethodSPRING
Second End Relationship with First EndIDENTICAL
Maximum Inlet Pressure RatingERR-060
Regulation TypeAUTOMATIC SINGLE STAGE
Flow Control DeviceDISK
First End Thread DirectionRIGHT-HAND
Valve Stem DesignSINGLE SEAT
Temp Rating40.0 FAHRENHEIT MINIMUM AND 120.0 FAHRENHEIT MAXIMUM DEGF
Outlet Pressure Range5.0 TO 125.0 CAMERA MOUNT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5895-00-083-90712755-9 INTERCHANGEABLE
Generator Assembly
Rockwell Collins, Inc. Dba Rc Displays Systems
4820-01-161-990416048 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Forenta Lp
3040-01-188-862627559 INTERCHANGEABLE
Gear
Moog Inc. Dba Ampac-Isp Corp
5305-01-548-474329935 INTERCHANGEABLE
Screw,cap,hexagon Head
Eagle Components, Inc
Cross-Reference Index
Part NumberManufacturer
112-2RLX Watts Regulator Company (USA)
R113-02CX Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America (USA)
27559 Forenta Lp (USA)
127221-020 PRIMARY Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
Related Parts
5895-00-083-9071INTERCHANGEABLE
GENERATOR ASSEMBLY
2755-9
4820-01-161-9904INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
16048
3040-01-188-8626INTERCHANGEABLE
GEAR
27559
5305-01-548-4743INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
29935

Frequently Asked Questions

What is NSN 4820-01-171-6701?

NSN 4820-01-171-6701 is a Valve,regulating,fluid Pressure, manufactured by Ingersoll-Rand Company Dba Ingersoll-Rand, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-171-6701?

NSN 4820-01-171-6701 has 4 cross-referenced part numbers: 112-2RLX (Watts Regulator Company), R113-02CX (Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America), 27559 (Forenta Lp), 127221-020 (Ingersoll-Rand Company Dba Ingersoll-Rand).

What NSN replaces 4820-01-171-6701?

There are 4 known substitutes for 4820-01-171-6701: 5895-00-083-9071, 4820-01-161-9904, 3040-01-188-8626 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 127221-020?

Key specifications for 127221-020: Filter: NOT INCLUDED; Material: ZINC BODY; End Connection Quantity: 2; Media for Which Designed: AIR. 18 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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