PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6255-1Valve,calibrated Flow

Pneudraulics, Inc. · NSN 4820-01-156-8199 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-156-8199 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-156-8199. Primary manufacturer part number: 6255-1.
Features
  • Valve,calibrated Flow — FSC 4820
  • Thread Size and Series/type Designator: 0.750-16 UNF FIRST END
  • Body Style: STRAIGHT THRU
  • First End Style Designator: GASKET SEAL
  • First End Connection Type: THREADED INTERNAL BOSS
  • Media for Which Designed: HYDRAULIC OIL
  • First End Thread Direction: RIGHT-HAND
  • Valve Discharge Flow Rate: 4.2 GALLONS PER MINUTE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy Body construction
General Description

The Valve,calibrated Flow, cataloged under National Stock Number 4820-01-156-8199, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Pneudraulics, Inc.. Government technical data includes 14 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-156-8199
Primary Part Number6255-1
Item NameValve,calibrated Flow
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerPneudraulics, Inc.
StatusACTIVE
Thread Size and Series/type Designator0.750-16 UNF FIRST END
Body StyleSTRAIGHT THRU
First End Style DesignatorGASKET SEAL
First End Connection TypeTHREADED INTERNAL BOSS
Media for Which DesignedHYDRAULIC OIL
First End Thread DirectionRIGHT-HAND
Valve Discharge Flow Rate4.2 GALLONS PER MINUTE
MaterialALUMINUM ALLOY BODY
Maximum Inlet Pressure RatingERR-060
Second End Relationship with First EndNOT IDENTICAL
First End Thread Class2B
End Connection Quantity2
Surface TreatmentANODIZE OUTSIDE
Flow Control DevicePOPPET
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6145-00-135-001861A5A54 INTERCHANGEABLE
Cable,radio Frequency
Naval Air Warfare Center Aircraft Div
5330-00-154-8464 INTERCHANGEABLE
Seal,plain Encased
4510-00-159-8289 INTERCHANGEABLE
Flush Connection,urinal-Water Cl
2815-00-393-5579 INTERCHANGEABLE
Valve,intake
5905-00-415-413882-31-0 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Bi Technologies Corporation Div Bi Technologies Corp.
5330-00-641-22222923 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
6130-01-022-75326255 INTERCHANGEABLE
Power Supply
Agilent Technologies, Inc. Div Agilent Technologies Headquarters
4820-01-107-2215N62551 INTERCHANGEABLE
Disk,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-232-4720 INTERCHANGEABLE
Valve,globe
7025-01-260-79126255 INTERCHANGEABLE
Display Terminal
Data General Corporation
Cross-Reference Index
Part NumberManufacturer
6255 Pneudraulics, Inc. (USA)
6255-1 PRIMARY Pneudraulics, Inc. (USA)
675VP05 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
675VP05-1 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
Related Parts
6145-00-135-0018INTERCHANGEABLE
CABLE,RADIO FREQUENCY
61A5A54
5330-00-154-8464INTERCHANGEABLE
SEAL,PLAIN ENCASED
4510-00-159-8289INTERCHANGEABLE
FLUSH CONNECTION,URINAL-WATER CL
2815-00-393-5579INTERCHANGEABLE
VALVE,INTAKE
5905-00-415-4138INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
82-31-0
5330-00-641-2222INTERCHANGEABLE
SEAL,PLAIN ENCASED
2923
6130-01-022-7532INTERCHANGEABLE
POWER SUPPLY
6255
4820-01-107-2215INTERCHANGEABLE
DISK,VALVE
N62551
4820-01-232-4720INTERCHANGEABLE
VALVE,GLOBE
7025-01-260-7912INTERCHANGEABLE
DISPLAY TERMINAL
6255
5999-01-272-4194INTERCHANGEABLE
DELAY LINE
62-55
6320-01-342-5193INTERCHANGEABLE
PANEL,ALARM,SHIPBOARD

Frequently Asked Questions

What is NSN 4820-01-156-8199?

NSN 4820-01-156-8199 is a Valve,calibrated Flow, manufactured by Pneudraulics, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-156-8199?

NSN 4820-01-156-8199 has 4 cross-referenced part numbers: 6255 (Pneudraulics, Inc.), 6255-1 (Pneudraulics, Inc.), 675VP05 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), 675VP05-1 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company).

What NSN replaces 4820-01-156-8199?

There are 12 known substitutes for 4820-01-156-8199: 6145-00-135-0018, 5330-00-154-8464, 4510-00-159-8289 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6255-1?

Key specifications for 6255-1: Thread Size and Series/type Designator: 0.750-16 UNF FIRST END; Body Style: STRAIGHT THRU; First End Style Designator: GASKET SEAL; First End Connection Type: THREADED INTERNAL BOSS. 14 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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