PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

164456Gage,pressure,dial Indicating

Ametek, Inc. Div Aerospace & Defense · NSN 6685-00-074-4669 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-074-4669 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-074-4669. Primary manufacturer part number: 164456.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Scale Inscription/background Color: BLACK FIGURES ON WHITE BACKGROUND
  • Overall Diameter: 3.560 INCHES NOMINAL IN
  • Surface Treatment: ENAMEL CASE
  • Material: COPPER ALLOY AND STEEL CASE
  • Mounting Method: FLUSH PANEL
  • Bezel Type: SLIPS-ON
  • Scale Accuracy: 2 PCT MIDDLE HALF OF RANGE,3 PCT REMAINDER
Applications
  • Applications requiring Copper Alloy and Steel Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-074-4669, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ametek, Inc. Div Aerospace & Defense. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-074-4669
Primary Part Number164456
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAmetek, Inc. Div Aerospace & Defense
StatusCANCELLED
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Overall Diameter3.560 INCHES NOMINAL IN
Surface TreatmentENAMEL CASE
MaterialCOPPER ALLOY AND STEEL CASE
Mounting MethodFLUSH PANEL
Bezel TypeSLIPS-ON
Scale Accuracy2 PCT MIDDLE HALF OF RANGE,3 PCT REMAINDER
MaterialCOPPER ALLOY 511 ACTUATING ELEMENT
Bolt Circle Diameter3.188 INCHES NOMINAL IN
Connection LocationBACK, CENTER
Connector Type VentNOT PROVIDED
Mounting Hole Quantity3
MaterialGLASS PROTECTIVE CRYSTAL
Unable to DecodeUNABLE TO DECODE
Scale TypeSINGLE
Scale NamePRESSURE
Pointer ColorBLACK
Actuation TypeSINGLE BOURDON TUBE
Pointer TypeINDICATING
Dial Size2-1/2 IN. DIA IN
Scale Range+0.0 TO 300.0 POUNDS PRESSURE PER SQUARE INCH LBS
Scale Smallest Increment5.0 POUNDS LBS
Connection Quantity1
Graduation Unit30.0 POUNDS LBS
AdjustabilityNONADJUSTABLE
Connection Size0.125 IN. NPT DIA IN
Mounting Hole Diameter0.178 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4710-00-006-4572 INTERCHANGEABLE
Tube,bent,metallic
6685-00-088-0059164444 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
5965-00-128-8756 INTERCHANGEABLE
Headset,electrical
5133-00-189-9318 INTERCHANGEABLE
Drill,twist
4730-00-274-920720028 INTERCHANGEABLE
Packing Nut
Northrop Grumman Systems Corporation Div Marine Systems
2805-00-358-004629780 INTERCHANGEABLE
Piston,internal Combustion Engin
Briggs and Stratton Corp
3530-00-359-7117 INTERCHANGEABLE
Adapter,finger Guard
6105-00-390-622320028 INTERCHANGEABLE
Motor,direct Current
Raytheon Company Dba Raytheon
6685-00-401-2337 INTERCHANGEABLE
Gage,pressure,dial Indicating
3830-00-447-65160120028 INTERCHANGEABLE
Roller,side Thrust
New Holland Construction
Cross-Reference Index
Part NumberManufacturer
P845FF0-300-21/2D1A Ametek, Inc. Div Aerospace & Defense (USA)
2 1-2 1DFFM1-8CBM300 Desco Corp Marsh Bellofram Div (USA)
P645FF21-2300PSI Ametek, Inc. Div Aerospace & Defense (USA)
P845FF0-300 Ametek, Inc. Div Aerospace & Defense (USA)
5000-6-12 Altec Air, Llc Dba Altec Llc (USA)
P645FF0-300-2 1-2 Ametek, Inc. Div Aerospace & Defense (USA)
2 1-2 1DFFM1-8CBM300 Bellofram Corporation (USA)
101890-1 Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems (USA)
29780 Ametek, Inc. Div Aerospace & Defense (USA)
25-1001-01B-XFF-300 Ashcroft Inc Dba Heise (USA)
164456 PRIMARY Ametek, Inc. Div Aerospace & Defense (USA)
25 1001 T 01B XFF 300 Ashcroft Inc Dba Heise (USA)
200-28 Sioux Corporation Dba Sioux Corp (USA)
200-27A Sioux Corporation Dba Sioux Corp (USA)
P845FF Ametek, Inc. Div Aerospace & Defense (USA)
P645FF Ametek, Inc. Div Aerospace & Defense (USA)
P845FF 1/8CBM2 1/2IN-300 Ametek, Inc. Div Aerospace & Defense (USA)
Related Parts
4710-00-006-4572INTERCHANGEABLE
TUBE,BENT,METALLIC
6685-00-088-0059INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164444
5965-00-128-8756INTERCHANGEABLE
HEADSET,ELECTRICAL
5133-00-189-9318INTERCHANGEABLE
DRILL,TWIST
4730-00-274-9207INTERCHANGEABLE
PACKING NUT
20028
2805-00-358-0046INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
29780
3530-00-359-7117INTERCHANGEABLE
ADAPTER,FINGER GUARD
6105-00-390-6223INTERCHANGEABLE
MOTOR,DIRECT CURRENT
20028
6685-00-401-2337INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
3830-00-447-6516INTERCHANGEABLE
ROLLER,SIDE THRUST
0120028
6685-00-489-0727INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164416
6685-00-527-7191INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
P845FF-3 1/2-1/4B-0/600

Frequently Asked Questions

What is NSN 6685-00-074-4669?

NSN 6685-00-074-4669 is a Gage,pressure,dial Indicating, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-074-4669?

NSN 6685-00-074-4669 has 17 cross-referenced part numbers: P845FF0-300-21/2D1A (Ametek, Inc. Div Aerospace & Defense), 2 1-2 1DFFM1-8CBM300 (Desco Corp Marsh Bellofram Div), P645FF21-2300PSI (Ametek, Inc. Div Aerospace & Defense), P845FF0-300 (Ametek, Inc. Div Aerospace & Defense), 5000-6-12 (Altec Air, Llc Dba Altec Llc) and 12 more.

What NSN replaces 6685-00-074-4669?

There are 12 known substitutes for 6685-00-074-4669: 4710-00-006-4572, 6685-00-088-0059, 5965-00-128-8756 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 164456?

Key specifications for 164456: Scale Inscription/background Color: BLACK FIGURES ON WHITE BACKGROUND; Overall Diameter: 3.560 INCHES NOMINAL IN; Overall Depth: 1.230 INCHES NOMINAL IN; Surface Treatment: ENAMEL CASE. 29 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-074-4669 still in active supply?

NSN 6685-00-074-4669 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.
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