PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

164451Gage,pressure,dial Indicating

Ametek, Inc. Div Aerospace & Defense · NSN 6685-00-878-7161 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-878-7161 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-878-7161. Primary manufacturer part number: 164451.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Pointer Color: BLACK
  • Connection Size: 0.125 IN. NPT DIA IN
  • Color: BLACK CASE
  • Material: COPPER ALLOY AND STEEL CASE
  • Surface Treatment: ENAMEL CASE
  • Material: GLASS PROTECTIVE CRYSTAL
  • Material: COPPER ALLOY 511 ACTUATING ELEMENT
Applications
  • Applications requiring Copper Alloy and Steel Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-878-7161, 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 28 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: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-878-7161
Primary Part Number164451
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAmetek, Inc. Div Aerospace & Defense
StatusCANCELLED
Pointer ColorBLACK
Connection Size0.125 IN. NPT DIA IN
ColorBLACK CASE
MaterialCOPPER ALLOY AND STEEL CASE
Surface TreatmentENAMEL CASE
MaterialGLASS PROTECTIVE CRYSTAL
MaterialCOPPER ALLOY 511 ACTUATING ELEMENT
Mounting Hole Diameter0.173 INCHES NOMINAL IN
Overall Diameter3.560 INCHES NOMINAL IN
Bolt Circle Diameter3.180 INCHES NOMINAL IN
Mounting Hole Quantity3
AdjustabilityNONADJUSTABLE
Bezel TypeSNAP-ON
Scale Smallest Increment1.0 POUNDS LBS
Graduation Unit5.0 POUNDS LBS
Mounting MethodFLUSH PANEL
Scale Range+0.0 TO 30.0 POUNDS PRESSURE PER SQUARE INCH LBS
Scale Accuracy2 PCT MIDDLE HALF,3 PCT REMAINDER
Connection LocationBACK, CENTER
Actuation TypeSINGLE BOURDON TUBE
Scale TypeSINGLE
Pointer TypeINDICATING
Connection TypeEXTERNAL
Connection Quantity1
Scale NamePRESSURE
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Dial Size2-1/2 IN. DIA IN
Connector Type VentNOT PROVIDED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6685-00-074-4669164456 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-088-0059164444 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
3110-00-100-0665645 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
6620-00-238-997223D INTERCHANGEABLE
Gage,pressure,dial Indicating
Zeks Air Drier Corp Sub of Kemp Co
2640-00-255-99894400 INTERCHANGEABLE
Cap,pneumatic Valve
Schrader-Bridgeport International Inc Dba Schrader Automotive
5960-00-256-0587 INTERCHANGEABLE
Retainer,electron Tube
5120-00-278-106528820 INTERCHANGEABLE
Vise,bench and Pipe
Wilton Corp Wilton Tool Div
5325-00-286-8045 INTERCHANGEABLE
Eyelet,metallic
6685-00-286-805612275 INTERCHANGEABLE
Gage,pressure,dial Indicating
Clayton Manufacturing Company
5360-00-292-4101645 INTERCHANGEABLE
Spring,helical,compression
Struthers Wells Corp
Cross-Reference Index
Part NumberManufacturer
15M146 Dalnor Systems Inc (USA)
2 1-2 1DFFM1-4CBM30 Bellofram Corporation (USA)
1ABC03360AGA Bellofram Corporation (USA)
6798295-809 Allison Transmission Inc Dba Allison Transmission, Inc (USA)
245-1079P1 Raytheon Company Div Corp (USA)
1009KB0-30PSI Ashcroft Inc Dba Heise (USA)
U610491 Triumph Thermal Systems, Llc (USA)
138044 Ametek, Inc. Div Aerospace & Defense (USA)
164451 PRIMARY Ametek, Inc. Div Aerospace & Defense (USA)
P645FF Ametek, Inc. Div Aerospace & Defense (USA)
2438844-1 Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA)
P845FF Ametek, Inc. Div Aerospace & Defense (USA)
TYPE1009KB14MAL Ashcroft Inc Dba Heise (USA)
1009KB1-4MALE Ashcraft C S Mfg Co (USA)
1009A028CXFF0-30 Ashcroft Inc Dba Heise (USA)
23D Liftec Inc Div Liftec, Inc. (USA)
1DFFM2 1-2 30 Bellofram Corporation (USA)
1009-0-30 Ashcroft Inc Dba Heise (USA)
2 1-2 1DFFM1-4 30 Bellofram Corporation (USA)
645 Ametek, Inc. Div Aerospace & Defense (USA)
Related Parts
6685-00-074-4669INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164456
6685-00-088-0059INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164444
3110-00-100-0665INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
645
6620-00-238-9972INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
23D
2640-00-255-9989INTERCHANGEABLE
CAP,PNEUMATIC VALVE
4400
5960-00-256-0587INTERCHANGEABLE
RETAINER,ELECTRON TUBE
5120-00-278-1065INTERCHANGEABLE
VISE,BENCH AND PIPE
28820
5325-00-286-8045INTERCHANGEABLE
EYELET,METALLIC
6685-00-286-8056INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
12275
5360-00-292-4101INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
645
1560-00-335-5779INTERCHANGEABLE
CLAMP,REAR STRUT JU
10656-00
4320-00-398-7913INTERCHANGEABLE
RING,WEARING
1124P

Frequently Asked Questions

What is NSN 6685-00-878-7161?

NSN 6685-00-878-7161 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 6685-00-878-7161?

NSN 6685-00-878-7161 has 23 cross-referenced part numbers: 15M146 (Dalnor Systems Inc), 2 1-2 1DFFM1-4CBM30 (Bellofram Corporation), 1ABC03360AGA (Bellofram Corporation), 6798295-809 (Allison Transmission Inc Dba Allison Transmission, Inc), 245-1079P1 (Raytheon Company Div Corp) and 18 more.

What NSN replaces 6685-00-878-7161?

There are 12 known substitutes for 6685-00-878-7161: 6685-00-074-4669, 6685-00-088-0059, 3110-00-100-0665 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 164451?

Key specifications for 164451: Pointer Color: BLACK; Connection Size: 0.125 IN. NPT DIA IN; Color: BLACK CASE; Material: COPPER ALLOY AND STEEL CASE. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-878-7161 still in active supply?

NSN 6685-00-878-7161 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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