PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

300000-2Valve,check

Adams Rite Aerospace, Inc · NSN 4820-01-191-5332 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-191-5332 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-191-5332. Primary manufacturer part number: 300000-2.
Features
  • Valve,check — FSC 4820
  • Connection Type: THREADED EXTERNAL TUBE ALL ENDS
  • Maximum Operating Temp: 165.0 FAHRENHEIT FIRST RESPONSE DEGF
  • Connection Style: FLARELESS ALL ENDS
  • Nominal Thread Size: 0.750 INCHES ALL ENDS IN
  • Operating Pressure: 40.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
  • Thread Quantity Per Inch: 16 ALL ENDS
  • Media for Which Designed: AIR FIRST RESPONSE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-191-5332, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Adams Rite Aerospace, Inc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-191-5332
Primary Part Number300000-2
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAdams Rite Aerospace, Inc
StatusACTIVE
Connection TypeTHREADED EXTERNAL TUBE ALL ENDS
Maximum Operating Temp165.0 FAHRENHEIT FIRST RESPONSE DEGF
Connection StyleFLARELESS ALL ENDS
Nominal Thread Size0.750 INCHES ALL ENDS IN
Operating Pressure40.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Thread Quantity Per Inch16 ALL ENDS
Media for Which DesignedAIR FIRST RESPONSE
Style DesignatorSTRAIGHT THRU
Thread Class3A ALL ENDS A
Thread DirectionRIGHT-HAND ALL ENDS
Seat Angle12.0 DEGREES ALL ENDS
Media for Which DesignedNITROGEN, GASEOUS SECOND RESPONSE
Operating Pressure40.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Mounting PositionHORIZONTAL
Maximum Operating Temp165.0 FAHRENHEIT SECOND RESPONSE DEGF
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6515-00-910-00973000002 INTERCHANGEABLE
Hypodermic Injection Apparatus,j
Mycone Dental Supply Co. Inc. Dba National Keystone Products
5342-00-931-73039434307-10 INTERCHANGEABLE
Handle Assembly
Warner Robins Air Logistics Center
5355-01-110-8591 INTERCHANGEABLE
Dial,scale
4610-01-412-1477 INTERCHANGEABLE
Distiller,vacuum,chemical Waste
2520-01-479-21703000002 INTERCHANGEABLE
Transmission,mechanical,vehicula
Oshkosh Defense Llc
5340-01-564-3448300002 INTERCHANGEABLE
Hardware Kit,mechanic Equipment
Steiner Eoptics, Inc.
5306-01-579-78453000002-062200 INTERCHANGEABLE
Bolt,machine
Bae Systems Land & Armaments L.p.
5306-01-579-78463000002-075225 INTERCHANGEABLE
Bolt,machine
Bae Systems Land & Armaments L.p.
5306-01-613-09263000002-062350 INTERCHANGEABLE
Bolt,machine
Bae Systems Land & Armaments L.p.
5306-01-621-16573000002-025100 INTERCHANGEABLE
Bolt,machine
Bae Systems Land & Armaments L.p.
Cross-Reference Index
Part NumberManufacturer
300000-2 PRIMARY Adams Rite Aerospace, Inc (USA)
300000-2 Sabre Industries Inc (USA)
Related Parts
6515-00-910-0097INTERCHANGEABLE
HYPODERMIC INJECTION APPARATUS,J
3000002
5342-00-931-7303INTERCHANGEABLE
HANDLE ASSEMBLY
9434307-10
5355-01-110-8591INTERCHANGEABLE
DIAL,SCALE
4610-01-412-1477INTERCHANGEABLE
DISTILLER,VACUUM,CHEMICAL WASTE
2520-01-479-2170INTERCHANGEABLE
TRANSMISSION,MECHANICAL,VEHICULA
3000002
5340-01-564-3448INTERCHANGEABLE
HARDWARE KIT,MECHANIC EQUIPMENT
300002
5306-01-579-7845INTERCHANGEABLE
BOLT,MACHINE
3000002-062200
5306-01-579-7846INTERCHANGEABLE
BOLT,MACHINE
3000002-075225
5306-01-613-0926INTERCHANGEABLE
BOLT,MACHINE
3000002-062350
5306-01-621-1657INTERCHANGEABLE
BOLT,MACHINE
3000002-025100

Frequently Asked Questions

What is NSN 4820-01-191-5332?

NSN 4820-01-191-5332 is a Valve,check, manufactured by Adams Rite Aerospace, Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-191-5332?

NSN 4820-01-191-5332 has 2 cross-referenced part numbers: 300000-2 (Adams Rite Aerospace, Inc), 300000-2 (Sabre Industries Inc).

What NSN replaces 4820-01-191-5332?

There are 10 known substitutes for 4820-01-191-5332: 6515-00-910-0097, 5342-00-931-7303, 5355-01-110-8591 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 300000-2?

Key specifications for 300000-2: Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Maximum Operating Temp: 165.0 FAHRENHEIT FIRST RESPONSE DEGF; Connection Style: FLARELESS ALL ENDS; Nominal Thread Size: 0.750 INCHES ALL ENDS IN. 16 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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