PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

451082AS04B30/0IMVGage,vacuum,indicating

Ashcroft Inc Dba Heise · NSN 6685-00-806-7222 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-806-7222 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-806-7222. Primary manufacturer part number: 451082AS04B30/0IMV.
Features
  • Gage,vacuum,indicating — FSC 6685
  • Overall Diameter: 6.093 INCHES NOMINAL IN
  • Bolt Circle Diameter: 5.375 INCHES NOMINAL IN
  • Mounting Hole Diameter: 0.218 INCHES NOMINAL IN
  • Pointer Type: INDICATING
  • Unable to Decode: UNABLE TO DECODE
  • Actuation Type: SINGLE BOURDON TUBE
  • Dial Size: 4-1/2 IN. DIA IN
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,vacuum,indicating, cataloged under National Stock Number 6685-00-806-7222, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-806-7222
Primary Part Number451082AS04B30/0IMV
Item NameGage,vacuum,indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusCANCELLED
Overall Diameter6.093 INCHES NOMINAL IN
Bolt Circle Diameter5.375 INCHES NOMINAL IN
Mounting Hole Diameter0.218 INCHES NOMINAL IN
Pointer TypeINDICATING
Unable to DecodeUNABLE TO DECODE
Actuation TypeSINGLE BOURDON TUBE
Dial Size4-1/2 IN. DIA IN
Scale Accuracy1/4 OF 1 PCT ENTIRE RANGE
Mounting MethodFLUSH PANEL
Scale Smallest Increment0.1 INCHES IN
Connection Size0.250 IN. NPT DIA IN
Bezel TypeHINGE
Connector Type VentNOT PROVIDED
Surface TreatmentPAINT CASE
Connection TypeEXTERNAL
MaterialGLASS PROTECTIVE CRYSTAL
Surface TreatmentPAINT LOCATION NOT OTHERWISE SPECIFIED
Scale TypeSINGLE
AdjustabilityADJUSTABLE
Scale Range+0.0 TO 30.0 INCHES OF MERCURY IN
Connection LocationBACK, LOWER
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
MaterialALUMINUM CASE
Graduation Unit2.0 INCHES IN
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
Scale NameVACUUM
Connection Quantity1
MaterialCOPPER ALLOY 511 ACTUATING ELEMENT
Pointer ColorBLACK
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5310-00-582-5598 INTERCHANGEABLE
Washer,flat
5305-00-834-55694315 INTERCHANGEABLE
Screw,shoulder
Roller Bearing Co of America, Inc Div Pic Design
5330-00-859-365165895 INTERCHANGEABLE
Packing,preformed
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4310-01-009-0945 INTERCHANGEABLE
Compressor Unit,rotary
5330-01-115-4945TO 04384188 INTERCHANGEABLE
Seal,plain
Chrysler Realty Company Llc Dba Daimler Chrysler
Cross-Reference Index
Part NumberManufacturer
361-511-9002 Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (USA)
45-1082AS02BXEYVAC Ashcroft Inc Dba Heise (USA)
45-1377AV02B30 Ashcroft Inc Dba Heise (USA)
4-1120-01 Air Products & Chemicals, Inc (USA)
V1403-4-5-0-30 Ametek, Inc. Div Aerospace & Defense (USA)
6685PL0826119 Jednolity Indeks Materialowy - Uniform Material Index (POL)
1377AXTDSA4-5-30 Ashcroft Inc Dba Heise (USA)
411R Bristol Babcock Inc Helicoid Instruments Div (USA)
45-1082-AS04B-30VAC Ashcroft Inc Dba Heise (USA)
132258-V1403 Ametek, Inc. Div Aerospace & Defense (USA)
1803-0-30INHGVAC Ametek, Inc. Div Aerospace & Defense (USA)
65895 Ametek, Inc. Div Aerospace & Defense (USA)
361-511-9002 Honeywell International Inc. Div Aerospace - Torrance (USA)
1403 Ametek, Inc. Div Aerospace & Defense (USA)
45-1377AV02BXT1SA30 Ashcroft Inc Dba Heise (USA)
451082AS04B30/0IMV PRIMARY Ashcroft Inc Dba Heise (USA)
Related Parts
5310-00-582-5598INTERCHANGEABLE
WASHER,FLAT
5305-00-834-5569INTERCHANGEABLE
SCREW,SHOULDER
4315
5330-00-859-3651INTERCHANGEABLE
PACKING,PREFORMED
65895
4310-01-009-0945INTERCHANGEABLE
COMPRESSOR UNIT,ROTARY
5330-01-115-4945INTERCHANGEABLE
SEAL,PLAIN
TO 04384188

Frequently Asked Questions

What is NSN 6685-00-806-7222?

NSN 6685-00-806-7222 is a Gage,vacuum,indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-806-7222?

NSN 6685-00-806-7222 has 16 cross-referenced part numbers: 361-511-9002 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix), 45-1082AS02BXEYVAC (Ashcroft Inc Dba Heise), 45-1377AV02B30 (Ashcroft Inc Dba Heise), 4-1120-01 (Air Products & Chemicals, Inc), V1403-4-5-0-30 (Ametek, Inc. Div Aerospace & Defense) and 11 more.

What NSN replaces 6685-00-806-7222?

There are 5 known substitutes for 6685-00-806-7222: 5310-00-582-5598, 5305-00-834-5569, 5330-00-859-3651 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 451082AS04B30/0IMV?

Key specifications for 451082AS04B30/0IMV: Overall Diameter: 6.093 INCHES NOMINAL IN; Overall Depth: 2.093 INCHES NOMINAL IN; Bolt Circle Diameter: 5.375 INCHES NOMINAL IN; Mounting Hole Diameter: 0.218 INCHES NOMINAL IN. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-806-7222 still in active supply?

NSN 6685-00-806-7222 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.
PartsTable Design LLC · partstable.com