PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1287B2Valve,plug

Hydro-Aire Aerospace Corp · NSN 4820-00-141-9174 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-141-9174 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-141-9174. Primary manufacturer part number: 1287B2.
Features
  • Valve,plug — FSC 4820
  • Thread Series Designator: UN FIRST END
  • Valve Operation Method: MANUAL
  • Flow Style: THREE-WAY THREE PORT 180 DEGREE PLUG TURN
  • Connection Style: FLARED (TUBE) FIRST END
  • Thread Class: 3A FIRST END A
  • Nominal Thread Size: 1.312 INCHES FIRST END IN
  • Mounting Facility: THREADED FASTENER
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,plug, cataloged under National Stock Number 4820-00-141-9174, 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 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-141-9174
Primary Part Number1287B2
Item NameValve,plug
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHydro-Aire Aerospace Corp
StatusCANCELLED
Thread Series DesignatorUN FIRST END
Valve Operation MethodMANUAL
Flow StyleTHREE-WAY THREE PORT 180 DEGREE PLUG TURN
Connection StyleFLARED (TUBE) FIRST END
Thread Class3A FIRST END A
Nominal Thread Size1.312 INCHES FIRST END IN
Mounting FacilityTHREADED FASTENER
Nominal Outside Diameter Tube Accommodated1.000 INCHES FIRST END IN
Thread DirectionRIGHT-HAND FIRST END
Features ProvidedADJUSTABLE ROTATION STOP
Thread Quantity Per Inch12 FIRST END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3120-00-096-677812872 INTERCHANGEABLE
Bearing,sleeve
Morris Material Handling, Inc.
8145-00-161-869412862 INTERCHANGEABLE
Skid,shipping Conta
The Champion Company Div Ground Support Equipment
3120-00-293-583912872 INTERCHANGEABLE
Bearing,sleeve
Napco International Llc Dba Napco International Inc
4320-00-375-8553M13174-1 INTERCHANGEABLE
Deflector,dirt and Liquid
Itw Food Equipment Group Llc Dba Hobart Service
6130-00-407-564512872 INTERCHANGEABLE
Shaft
Leica Inc Surveying and Photogrammetry Systems Div
9340-01-026-83931287-2 INTERCHANGEABLE
Mirror,glass
The Boeing Company
5360-01-171-7974 INTERCHANGEABLE
Spring,helical,compression
6150-01-174-078512862 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
6150-01-224-064612872 INTERCHANGEABLE
Cable Assembly,special Purpose,e
The First Electronics Corporation
6240-01-344-5063150A/135/SS/130V INTERCHANGEABLE
Lamp,incandescent
Gte Products Corp Sylvania Miniature Lighting Div
Cross-Reference Index
Part NumberManufacturer
1287-2 Hydro-Aire Aerospace Corp (USA)
1286B2 Hydro-Aire Aerospace Corp (USA)
1286A2 Hydro-Aire Aerospace Corp (USA)
1286-2 Hydro-Aire Aerospace Corp (USA)
1287B2 PRIMARY Hydro-Aire Aerospace Corp (USA)
1287A2 Hydro-Aire Aerospace Corp (USA)
Related Parts
3120-00-096-6778INTERCHANGEABLE
BEARING,SLEEVE
12872
8145-00-161-8694INTERCHANGEABLE
SKID,SHIPPING CONTA
12862
3120-00-293-5839INTERCHANGEABLE
BEARING,SLEEVE
12872
4320-00-375-8553INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
M13174-1
6130-00-407-5645INTERCHANGEABLE
SHAFT
12872
9340-01-026-8393INTERCHANGEABLE
MIRROR,GLASS
1287-2
5360-01-171-7974INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
6150-01-174-0785INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
12862
6150-01-224-0646INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
12872
6240-01-344-5063INTERCHANGEABLE
LAMP,INCANDESCENT
150A/135/SS/130V
5985-01-567-9673INTERCHANGEABLE
ANTENNA TILT DEVICE
12872
1005-01-628-4737INTERCHANGEABLE
PIN,FIRING
12862

Frequently Asked Questions

What is NSN 4820-00-141-9174?

NSN 4820-00-141-9174 is a Valve,plug, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-141-9174?

NSN 4820-00-141-9174 has 6 cross-referenced part numbers: 1287-2 (Hydro-Aire Aerospace Corp), 1286B2 (Hydro-Aire Aerospace Corp), 1286A2 (Hydro-Aire Aerospace Corp), 1286-2 (Hydro-Aire Aerospace Corp), 1287B2 (Hydro-Aire Aerospace Corp) and 1 more.

What NSN replaces 4820-00-141-9174?

There are 12 known substitutes for 4820-00-141-9174: 3120-00-096-6778, 8145-00-161-8694, 3120-00-293-5839 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1287B2?

Key specifications for 1287B2: Thread Series Designator: UN FIRST END; Valve Operation Method: MANUAL; Flow Style: THREE-WAY THREE PORT 180 DEGREE PLUG TURN; Connection Style: FLARED (TUBE) FIRST END. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-141-9174 still in active supply?

NSN 4820-00-141-9174 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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