PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

163931Gage,pressure,dial Indicating

Ametek, Inc. Div Aerospace & Defense · NSN 6685-00-551-1166 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-551-1166 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-551-1166. Primary manufacturer part number: 163931.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Nondefinitive Spec/std Data: 1 POLISHED
  • FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
  • Material: GLASS PROTECTIVE CRYSTAL
  • Scale Name: PRESSURE
  • Connection Location: BOTTOM
  • Connection Quantity: 1
  • Adjustability: NONADJUSTABLE
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-551-1166, 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 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-551-1166
Primary Part Number163931
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAmetek, Inc. Div Aerospace & Defense
StatusCANCELLED
Nondefinitive Spec/std Data1 POLISHED
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
MaterialGLASS PROTECTIVE CRYSTAL
Scale NamePRESSURE
Connection LocationBOTTOM
Connection Quantity1
AdjustabilityNONADJUSTABLE
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Graduation Unit5.0 POUNDS PER SQUARE INCH LBS
Scale Accuracy2 PCT MIDDLE HALF OF SCALE,3 PCT REMAINDER
Bezel TypeTHREAD
Dial Size2 IN. DIA IN
Connection Size0.125 IN NPT DIA IN
Scale Smallest Increment1.0 POUNDS PER SQUARE INCH (PSI) LBS
Pointer ColorBLACK
Connection TypeEXTERNAL
Connector Type VentNOT PROVIDED
Scale TypeSINGLE
Scale Range+0.0 TO 30.0 POUNDS PRESSURE PER SQUARE INCH LBS
Overall Diameter2.230 INCHES NOMINAL IN
Pointer TypeINDICATING
Mounting MethodRIGID STEM
Mounting Connection LocationBOTTOM
Actuation TypeSINGLE BOURDON TUBE
MaterialBRASS CASE
MaterialBRONZE ACTUATING ELEMENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5342-00-999-3144702-22004 INTERCHANGEABLE
Clamp,hoist
Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center
5330-01-228-3467461525008000-562B INTERCHANGEABLE
Seal,plain
Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps)
6520-01-543-1899J1142 INTERCHANGEABLE
Band,matrix,dental
Rocky Mountain Orthodontics Inc Dba Rmo Inc
Cross-Reference Index
Part NumberManufacturer
2-1DPSR1-8LM30 Desco Corp Marsh Bellofram Div (USA)
P500 Ametek, Inc. Div Aerospace & Defense (USA)
J1142 Bellofram Corporation (USA)
J1142 Engineered Specialty Products, Inc. (USA)
163931 PRIMARY Ametek, Inc. Div Aerospace & Defense (USA)
J1142 Desco Corp Marsh Bellofram Div (USA)
Related Parts
5342-00-999-3144INTERCHANGEABLE
CLAMP,HOIST
702-22004
5330-01-228-3467INTERCHANGEABLE
SEAL,PLAIN
461525008000-562B
6520-01-543-1899INTERCHANGEABLE
BAND,MATRIX,DENTAL
J1142

Frequently Asked Questions

What is NSN 6685-00-551-1166?

NSN 6685-00-551-1166 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 6685-00-551-1166?

NSN 6685-00-551-1166 has 6 cross-referenced part numbers: 2-1DPSR1-8LM30 (Desco Corp Marsh Bellofram Div), P500 (Ametek, Inc. Div Aerospace & Defense), J1142 (Bellofram Corporation), J1142 (Engineered Specialty Products, Inc.), 163931 (Ametek, Inc. Div Aerospace & Defense) and 1 more.

What NSN replaces 6685-00-551-1166?

There are 3 known substitutes for 6685-00-551-1166: 5342-00-999-3144, 5330-01-228-3467, 6520-01-543-1899. Verify interchangeability with system specifications before substitution.

What are the specifications of 163931?

Key specifications for 163931: Overall Depth: 1.170 INCHES NOMINAL IN; Nondefinitive Spec/std Data: 1 POLISHED; FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE; Material: GLASS PROTECTIVE CRYSTAL. 28 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-551-1166 still in active supply?

NSN 6685-00-551-1166 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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