PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA207Valve,vacuum Breaking

Gast Mfg Corp · NSN 4820-00-999-9512 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-999-9512 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-999-9512. Primary manufacturer part number: AA207.
Features
  • Valve,vacuum Breaking — FSC 4820
  • Material: ALUMINUM ALLOY BODY
  • Media for Which Designed: AIR
  • First End Nominal Pipe Size Accommodated: 0.250 INCHES IN
  • First End Thread Direction: RIGHT-HAND
  • Temp Adjustability: NOT ADJUSTABLE
  • First End Connection Type: THREADED EXTERNAL PIPE
  • Body Style: SINGLE CONNECTION, STRAIGHT FLOW
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy Body construction
General Description

The Valve,vacuum Breaking, cataloged under National Stock Number 4820-00-999-9512, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Gast Mfg Corp. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-999-9512
Primary Part NumberAA207
Item NameValve,vacuum Breaking
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGast Mfg Corp
StatusACTIVE
MaterialALUMINUM ALLOY BODY
Media for Which DesignedAIR
First End Nominal Pipe Size Accommodated0.250 INCHES IN
First End Thread DirectionRIGHT-HAND
Temp AdjustabilityNOT ADJUSTABLE
First End Connection TypeTHREADED EXTERNAL PIPE
Body StyleSINGLE CONNECTION, STRAIGHT FLOW
Flow Control DevicePOPPET
End Connection Quantity1
First End Style DesignatorPLAIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
7510-00-526-1740 INTERCHANGEABLE
Inking Pad,rubber Stamp
7510-00-526-17417510-00-526-1741 INTERCHANGEABLE
Inking Pad,rubber Stamp
Sourceamerica
7510-00-526-1742 INTERCHANGEABLE
Inking Pad,rubber Stamp
Cross-Reference Index
Part NumberManufacturer
AA207 PRIMARY Gast Mfg Corp (USA)
Related Parts
7510-00-526-1740INTERCHANGEABLE
INKING PAD,RUBBER STAMP
7510-00-526-1741INTERCHANGEABLE
INKING PAD,RUBBER STAMP
7510-00-526-1741
7510-00-526-1742INTERCHANGEABLE
INKING PAD,RUBBER STAMP

Frequently Asked Questions

What is NSN 4820-00-999-9512?

NSN 4820-00-999-9512 is a Valve,vacuum Breaking, manufactured by Gast Mfg Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-999-9512?

NSN 4820-00-999-9512 has 1 cross-referenced part number: AA207 (Gast Mfg Corp).

What NSN replaces 4820-00-999-9512?

There are 3 known substitutes for 4820-00-999-9512: 7510-00-526-1740, 7510-00-526-1741, 7510-00-526-1742. Verify interchangeability with system specifications before substitution.

What are the specifications of AA207?

Key specifications for AA207: Material: ALUMINUM ALLOY BODY; Media for Which Designed: AIR; First End Nominal Pipe Size Accommodated: 0.250 INCHES IN; First End Thread Direction: RIGHT-HAND. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com