PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1287B4Valve,plug

Hydro-Aire Aerospace Corp · NSN 4820-00-032-8002 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-032-8002 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-032-8002. Primary manufacturer part number: 1287B4.
Features
  • Valve,plug — FSC 4820
  • Seat Angle: 37.0 DEGREES FIRST END
  • Connection Style: FLARED (TUBE) FIRST END
  • Thread Quantity Per Inch: 12 FIRST END
  • Mounting Facility: THREADED FASTENER
  • Nominal Thread Size: 1.312 INCHES FIRST END IN
  • Features Provided: ADJUSTABLE ROTATION STOP
  • Nominal Outside Diameter Tube Accommodated: 1.000 INCHES FIRST END IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,plug, cataloged under National Stock Number 4820-00-032-8002, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hydro-Aire Aerospace Corp. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, 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
NSN4820-00-032-8002
Primary Part Number1287B4
Item NameValve,plug
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHydro-Aire Aerospace Corp
StatusACTIVE
Seat Angle37.0 DEGREES FIRST END
Connection StyleFLARED (TUBE) FIRST END
Thread Quantity Per Inch12 FIRST END
Mounting FacilityTHREADED FASTENER
Nominal Thread Size1.312 INCHES FIRST END IN
Features ProvidedADJUSTABLE ROTATION STOP
Nominal Outside Diameter Tube Accommodated1.000 INCHES FIRST END IN
Thread Series DesignatorUN FIRST END
Thread DirectionRIGHT-HAND FIRST END
Valve Operation MethodMANUAL
Flow StyleTHREE-WAY THREE PORT 180 DEGREE PLUG TURN
Thread Class3A FIRST END A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2915-00-106-5464 INTERCHANGEABLE
Nozzle,fuel Injection
2840-00-313-14336846666 INTERCHANGEABLE
Cover-Access Drive
Rolls-Royce Corporation
5360-00-469-1444V12757 INTERCHANGEABLE
Spring,helical Compression,mixer
Itw Food Equipment Group Llc Dba Hobart Service
4820-00-590-862912874 INTERCHANGEABLE
Poppet,piston
Moog Inc
3825-00-784-0685932 INTERCHANGEABLE
Seal Valve Spool
Curtiss-Wright Flow Control Corporation Dba Enertech Div Curtiss-Wright Flow Control
5985-01-039-843712874 INTERCHANGEABLE
Dummy Load,electrical
Solitron Devices, Inc.
5950-01-106-9490990-363-91 INTERCHANGEABLE
Transformer,power
Ametek Programmable Power, Inc.
5310-01-119-9248 INTERCHANGEABLE
Washer
6150-01-174-900412864 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
6150-01-224-064712874 INTERCHANGEABLE
Cable Assembly,special Purpose,e
The First Electronics Corporation
Cross-Reference Index
Part NumberManufacturer
1287B4 PRIMARY Hydro-Aire Aerospace Corp (USA)
1286B4 Hydro-Aire Aerospace Corp (USA)
1286-4 Hydro-Aire Aerospace Corp (USA)
1287-4 Hydro-Aire Aerospace Corp (USA)
Related Parts
2915-00-106-5464INTERCHANGEABLE
NOZZLE,FUEL INJECTION
2840-00-313-1433INTERCHANGEABLE
COVER-ACCESS DRIVE
6846666
5360-00-469-1444INTERCHANGEABLE
SPRING,HELICAL COMPRESSION,MIXER
V12757
4820-00-590-8629INTERCHANGEABLE
POPPET,PISTON
12874
3825-00-784-0685INTERCHANGEABLE
SEAL VALVE SPOOL
932
5985-01-039-8437INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
12874
5950-01-106-9490INTERCHANGEABLE
TRANSFORMER,POWER
990-363-91
5310-01-119-9248INTERCHANGEABLE
WASHER
6150-01-174-9004INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
12864
6150-01-224-0647INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
12874
5365-01-396-9631INTERCHANGEABLE
SHIM SET
12864
4820-01-507-7860INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
128 74

Frequently Asked Questions

What is NSN 4820-00-032-8002?

NSN 4820-00-032-8002 is a Valve,plug, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-032-8002?

NSN 4820-00-032-8002 has 4 cross-referenced part numbers: 1287B4 (Hydro-Aire Aerospace Corp), 1286B4 (Hydro-Aire Aerospace Corp), 1286-4 (Hydro-Aire Aerospace Corp), 1287-4 (Hydro-Aire Aerospace Corp).

What NSN replaces 4820-00-032-8002?

There are 12 known substitutes for 4820-00-032-8002: 2915-00-106-5464, 2840-00-313-1433, 5360-00-469-1444 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1287B4?

Key specifications for 1287B4: Seat Angle: 37.0 DEGREES FIRST END; Connection Style: FLARED (TUBE) FIRST END; Thread Quantity Per Inch: 12 FIRST END; Mounting Facility: THREADED FASTENER. 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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