PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN5770-5Gage,absolute Pressure,dial Indi

Aeronautical Standards Group Dept of Navy and Air Force · NSN 6685-00-663-5491 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-663-5491 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-663-5491. Primary manufacturer part number: AN5770-5.
Features
  • Gage,absolute Pressure,dial Indi — FSC 6685
  • Surface Treatment: PAINTPAINT
  • Material: GLASS PROTECTIVE CRYSTALGLASS PROTECTIVE CRYSTAL
  • Graduation Unit: 10.0 INCHES OF MERCURY10.0 INCHES OF MERCURY IN
  • Scale Name: PRESSUREPRESSURE
  • Mounting Method: FLUSH PANELFLUSH PANEL
  • Pointer Color: BLACKBLACK
  • Connection Location: BACKBACK
Applications
  • Applications requiring Glass Protective Crystalglass Protective Crystal construction
General Description

The Gage,absolute Pressure,dial Indi, cataloged under National Stock Number 6685-00-663-5491, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Aeronautical Standards Group Dept of Navy and Air Force. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 23 commercial cross-references from 10 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
NSN6685-00-663-5491
Primary Part NumberAN5770-5
Item NameGage,absolute Pressure,dial Indi
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAeronautical Standards Group Dept of Navy and Air Force
StatusACTIVE
Surface TreatmentPAINTPAINT
MaterialGLASS PROTECTIVE CRYSTALGLASS PROTECTIVE CRYSTAL
Graduation Unit10.0 INCHES OF MERCURY10.0 INCHES OF MERCURY IN
Scale NamePRESSUREPRESSURE
Mounting MethodFLUSH PANELFLUSH PANEL
Pointer ColorBLACKBLACK
Connection LocationBACKBACK
Scale Smallest Increment1.0 INCHES OF MERCURY (INHG)1.0 INCHES OF MERCURY (INHG) IN
Dial Size2-3/4 IN. DIA2-3/4 IN. DIA IN
Connection TypeINTERNALINTERNAL
Bezel TypeANY ACCEPTABLEANY ACCEPTABLE
Connection Size0.125 IN. NPT0.125 IN. NPT IN
Scale Range+10.0 TO 75.0 INCHES OF MERCURY+10.0 TO 75.0 INCHES OF MERCURY IN
Unable to DecodeUNABLE TO DECODEUNABLE TO DECODE
Actuation TypeDIAPHRAGMDIAPHRAGM
Pointer TypeINDICATINGINDICATING
Scale TypeSINGLESINGLE
AdjustabilityNONADJUSTABLENONADJUSTABLE
Connection Quantity11
Scale Inscription/background ColorFLUORESCENT FIGURES ON BLACK BACKGROUNDFLUORESCENT FIGURES ON BLACK BACKGROUND
Connector Type VentNOT PROVIDEDNOT PROVIDED
Mounting Hole Quantity44
Bolt Circle Diameter3.500 INCHES NOMINAL3.500 INCHES NOMINAL IN
Mounting Hole Diameter0.170 INCHES NOMINAL0.170 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-037-688037817 INTERCHANGEABLE
Gasket
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
6620-00-045-8134 INTERCHANGEABLE
Gage,pressure,dial Indicating
6620-00-051-714331855-12 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ranco Inc Ranco Controls Div
6620-00-051-7145 INTERCHANGEABLE
Gage,pressure,dial Indicating
5950-00-193-8668 INTERCHANGEABLE
Transformer,power
6685-00-514-6184 INTERCHANGEABLE
Gage,absolute Pressure,dial Indi
6685-00-514-6189 INTERCHANGEABLE
Gage,absolute Pressure,dial Indi
6685-00-515-5764 INTERCHANGEABLE
Gage,vacuum,indicating
6620-00-532-2068AW2 3-4 25H5 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-551-3603 INTERCHANGEABLE
Gage,pressure,dial Indicating
Cross-Reference Index
Part NumberManufacturer
AN5770-5 Aeronautical Standards Group Dept of Navy and Air Force (USA)
37817 Ranco Management Corp (USA)
6748-287 Ashcroft Inc Dba Heise (USA)
AW2 3-4 25H Ametek, Inc. Div Aerospace & Defense (USA)
788K02 Elbitamerica, Inc. (USA)
AN5770-3 Aeronautical Standards Group Dept of Navy and Air Force (USA)
AN5770-1A Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
1929-8GA1 Honeywell Intl Inc Defense Avionics Systems (USA)
6748-157 Ashcroft Inc Dba Heise (USA)
AW2825AC03 Ametek, Inc. Div Aerospace & Defense (USA)
MIL-G-7734 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1929-8GA1 Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA)
AN5770-1A Aeronautical Standards Group Dept of Navy and Air Force (USA)
6749-180 Ashcroft Inc Dba Heise (USA)
1929-8KA1 Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA)
1929-8KA1 Honeywell Intl Inc Defense Avionics Systems (USA)
AN5770T1A Aeronautical Standards Group Dept of Navy and Air Force (USA)
6748-180 Ashcroft Inc Dba Heise (USA)
6748-267 Ashcroft Inc Dba Heise (USA)
FS18312 Airguide Instrument Co (USA)
Related Parts
5330-00-037-6880INTERCHANGEABLE
GASKET
37817
6620-00-045-8134INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6620-00-051-7143INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
31855-12
6620-00-051-7145INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
5950-00-193-8668INTERCHANGEABLE
TRANSFORMER,POWER
6685-00-514-6184INTERCHANGEABLE
GAGE,ABSOLUTE PRESSURE,DIAL INDI
6685-00-514-6189INTERCHANGEABLE
GAGE,ABSOLUTE PRESSURE,DIAL INDI
6685-00-515-5764INTERCHANGEABLE
GAGE,VACUUM,INDICATING
6620-00-532-2068INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
AW2 3-4 25H5
6685-00-551-3603INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-553-1995INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-555-3054INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING

Frequently Asked Questions

What is NSN 6685-00-663-5491?

NSN 6685-00-663-5491 is a Gage,absolute Pressure,dial Indi, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-663-5491?

NSN 6685-00-663-5491 has 23 cross-referenced part numbers: AN5770-5 (Aeronautical Standards Group Dept of Navy and Air Force), 37817 (Ranco Management Corp), 6748-287 (Ashcroft Inc Dba Heise), AW2 3-4 25H (Ametek, Inc. Div Aerospace & Defense), 788K02 (Elbitamerica, Inc.) and 18 more.

What NSN replaces 6685-00-663-5491?

There are 12 known substitutes for 6685-00-663-5491: 5330-00-037-6880, 6620-00-045-8134, 6620-00-051-7143 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AN5770-5?

Key specifications for AN5770-5: Overall Height: 3.250 INCHES NOMINAL3.250 INCHES NOMINAL IN; Surface Treatment: PAINTPAINT; Material: GLASS PROTECTIVE CRYSTALGLASS PROTECTIVE CRYSTAL; Graduation Unit: 10.0 INCHES OF MERCURY10.0 INCHES OF MERCURY IN. 27 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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