PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AV-1431-MGValve,cylinder,gas

Harsco Corp Sherwood Div · NSN 8120-00-281-3799 · FSC 8120 · No Item Name Available
Verified by PartsTable
NSN 8120-00-281-3799 — this item is cataloged by the U.S. Government under National Stock Number 8120-00-281-3799. Primary manufacturer part number: AV-1431-MG.
Features
  • Valve,cylinder,gas — FSC 8120
  • Second End Connection Type: THREADED EXTERNAL GAS CYLINDER
  • Media for Which Designed: ACETYLENE
  • Valve Operation Method: WHEEL
  • Body Style: ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
  • End Connection Quantity: 2
  • First End Style Designator: DOUBLE COMPRESSION
  • First End Thread Direction: LEFT-HAND
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy 377 Body construction
General Description

The Valve,cylinder,gas, cataloged under National Stock Number 8120-00-281-3799, is classified within Federal Supply Class 8120 (No Item Name Available) of the Containers, Packaging, and Packing Supplies group. The primary manufacturer of record is Harsco Corp Sherwood Div. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 5 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
NSN8120-00-281-3799
Primary Part NumberAV-1431-MG
Item NameValve,cylinder,gas
FSC / FSG8120 / 81 — No Item Name Available
ManufacturerHarsco Corp Sherwood Div
StatusACTIVE
Second End Connection TypeTHREADED EXTERNAL GAS CYLINDER
Media for Which DesignedACETYLENE
Valve Operation MethodWHEEL
Body StyleANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
End Connection Quantity2
First End Style DesignatorDOUBLE COMPRESSION
First End Thread DirectionLEFT-HAND
First End Connection TypeTHREADED INTERNAL GAS CYLINDER
Second End Style DesignatorPLAIN
Second End Thread DirectionRIGHT-HAND
Second End Thread Pitch Diameters+1.2136 TO 1.2712 INCHES IN
Second End Relationship with First EndNOT IDENTICAL
Flow Control DeviceANY ACCEPTABLE
First End Thread Pitch Diameters+0.8386 TO 0.8422 INCHES IN
Special MarkingsACETYLENE
MaterialCOPPER ALLOY 377 BODY
Material Document and ClassificationQQ-B-626, COMP 21 FED SPEC SINGLE MATERIAL RESPONSE BODY
Nondefinitive Spec/std DataV2-510-0 TYPE
Operating Pressure600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
8120-00-142-9246 INTERCHANGEABLE
Valve,cylinder,gas
8120-00-216-6799 INTERCHANGEABLE
Cap,valve,gas Cylinder Outlet
8120-00-281-3798 INTERCHANGEABLE
Valve,cylinder,gas
8120-00-281-3802 INTERCHANGEABLE
Valve,cylinder,gas
8120-00-281-3805 INTERCHANGEABLE
Valve,cylinder,gas
8120-00-283-09251250C2 INTERCHANGEABLE
Valve,cylinder,gas
Superior Valve Co
8120-00-597-0888 INTERCHANGEABLE
Valve,cylinder,gas
8120-00-803-2172 INTERCHANGEABLE
Valve,cylinder,gas
8120-01-224-62041100-346B INTERCHANGEABLE
Valve,cylinder,gas
Superior Valve Co
5120-01-399-9629J5410M INTERCHANGEABLE
Socket,socket Wrench
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
AV-1431-MG Harsco Corp Sherwood Div (USA)
AV-5180-MG Harsco Corp Sherwood Div (USA)
A-A-59860 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
TV-5180-MG Harsco Corp Sherwood Div (USA)
MIL-V-2/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-2/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
A-A-58960-004 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
MIL-DTL-2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1139-LF-2D Superior Valve Co (USA)
5410M Thermo Valves Corp (USA)
1239-LF-2D Superior Valve Co (USA)
Related Parts
8120-00-142-9246INTERCHANGEABLE
VALVE,CYLINDER,GAS
8120-00-216-6799INTERCHANGEABLE
CAP,VALVE,GAS CYLINDER OUTLET
8120-00-281-3798INTERCHANGEABLE
VALVE,CYLINDER,GAS
8120-00-281-3802INTERCHANGEABLE
VALVE,CYLINDER,GAS
8120-00-281-3805INTERCHANGEABLE
VALVE,CYLINDER,GAS
8120-00-283-0925INTERCHANGEABLE
VALVE,CYLINDER,GAS
1250C2
8120-00-597-0888INTERCHANGEABLE
VALVE,CYLINDER,GAS
8120-00-803-2172INTERCHANGEABLE
VALVE,CYLINDER,GAS
8120-01-224-6204INTERCHANGEABLE
VALVE,CYLINDER,GAS
1100-346B
5120-01-399-9629INTERCHANGEABLE
SOCKET,SOCKET WRENCH
J5410M
8120-01-524-6760INTERCHANGEABLE
VALVE,CYLINDER,GAS
8120-01-524-6772INTERCHANGEABLE
VALVE,CYLINDER,GAS

Frequently Asked Questions

What is NSN 8120-00-281-3799?

NSN 8120-00-281-3799 is a Valve,cylinder,gas, manufactured by Harsco Corp Sherwood Div, classified under FSC 8120 (No Item Name Available). Status: active.

What are the part numbers for NSN 8120-00-281-3799?

NSN 8120-00-281-3799 has 11 cross-referenced part numbers: AV-1431-MG (Harsco Corp Sherwood Div), AV-5180-MG (Harsco Corp Sherwood Div), A-A-59860 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), TV-5180-MG (Harsco Corp Sherwood Div), MIL-V-2/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 6 more.

What NSN replaces 8120-00-281-3799?

There are 12 known substitutes for 8120-00-281-3799: 8120-00-142-9246, 8120-00-216-6799, 8120-00-281-3798 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AV-1431-MG?

Key specifications for AV-1431-MG: Second End Connection Type: THREADED EXTERNAL GAS CYLINDER; Media for Which Designed: ACETYLENE; Valve Operation Method: WHEEL; Body Style: ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS. 19 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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