PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

169594AGage,pressure,dial Indicating

Ametek, Inc. Div Aerospace & Defense · NSN 6685-00-088-3978 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-088-3978 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-088-3978. Primary manufacturer part number: 169594A.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
  • Connection Location: LOWER
  • Scale Inscription/background Color: BLACK FIGURES ON WHITE BACKGROUND
  • Nondefinitive Spec/std Data: 1 POLISHED
  • Bezel Type: THREAD
  • Connector Type Vent: NOT PROVIDED
  • Scale Accuracy: 1/2 OF 1 PCT ACCURACY RATING ENTIRE SCALE
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-088-3978, 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 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 1 manufacturer, 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
NSN6685-00-088-3978
Primary Part Number169594A
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAmetek, Inc. Div Aerospace & Defense
StatusCANCELLED
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
Connection LocationLOWER
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Nondefinitive Spec/std Data1 POLISHED
Bezel TypeTHREAD
Connector Type VentNOT PROVIDED
Scale Accuracy1/2 OF 1 PCT ACCURACY RATING ENTIRE SCALE
MaterialGLASS PROTECTIVE CRYSTAL
MaterialBRONZE ACTUATING ELEMENT
Overall Diameter2.718 INCHES NOMINAL IN
Pointer TypeINDICATING
Connection Quantity1
Graduation Unit3.0 POUNDS LBS
Dial Size2-1/2 IN. DIA IN
Scale TypeSINGLE
AdjustabilityNONADJUSTABLE
Scale NamePRESSURE
Scale Smallest Increment0.5 POUNDS LBS
Scale Range+0.9 TO 15.0 POUNDS PRESSURE PER SQUARE INCH LBS
Pointer ColorBLACK
Mounting MethodRIGID STEM
Actuation TypeSINGLE BOURDON TUBE
Unable to DecodeUNABLE TO DECODE
Connection Size0.250 IN. NPT DIA IN
MaterialBRASS CASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6685-00-063-9708164262A INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
3110-00-156-486510028 INTERCHANGEABLE
Bearing,ball,annular
Klauer Manufacturing Company
6685-00-251-1360164290A INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
2805-00-354-3795637041 INTERCHANGEABLE
Pin,piston
Am General Llc
5360-00-404-3709P60-2 INTERCHANGEABLE
Spring,valve
Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc
5995-00-416-1032A25A950-925-101 INTERCHANGEABLE
Lead,electrical
Lockheed Martin Corporation Div Lockheed Martin Systems & Global Solutions
5325-00-597-9884 INTERCHANGEABLE
Ring,retaining
6685-00-763-684248513 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-951-5971165660A INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6150-01-102-6943P-60-2 INTERCHANGEABLE
Lead,electrical
Fluke Electronics Corp
Cross-Reference Index
Part NumberManufacturer
50665-0 Ametek, Inc. Div Aerospace & Defense (USA)
050665 Ametek, Inc. Div Aerospace & Defense (USA)
ADL1539-1 Ametek, Inc. Div Aerospace & Defense (USA)
P602 Ametek, Inc. Div Aerospace & Defense (USA)
169594A PRIMARY Ametek, Inc. Div Aerospace & Defense (USA)
Related Parts
6685-00-063-9708INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164262A
3110-00-156-4865INTERCHANGEABLE
BEARING,BALL,ANNULAR
10028
6685-00-251-1360INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164290A
2805-00-354-3795INTERCHANGEABLE
PIN,PISTON
637041
5360-00-404-3709INTERCHANGEABLE
SPRING,VALVE
P60-2
5995-00-416-1032INTERCHANGEABLE
LEAD,ELECTRICAL
A25A950-925-101
5325-00-597-9884INTERCHANGEABLE
RING,RETAINING
6685-00-763-6842INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
48513
6685-00-951-5971INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
165660A
6150-01-102-6943INTERCHANGEABLE
LEAD,ELECTRICAL
P-60-2
6685-01-157-0994INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
P602 2IN 200PSI
1680-01-218-4374INTERCHANGEABLE
CLOTH,PREIMPREGNATE

Frequently Asked Questions

What is NSN 6685-00-088-3978?

NSN 6685-00-088-3978 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 6685-00-088-3978?

NSN 6685-00-088-3978 has 5 cross-referenced part numbers: 50665-0 (Ametek, Inc. Div Aerospace & Defense), 050665 (Ametek, Inc. Div Aerospace & Defense), ADL1539-1 (Ametek, Inc. Div Aerospace & Defense), P602 (Ametek, Inc. Div Aerospace & Defense), 169594A (Ametek, Inc. Div Aerospace & Defense).

What NSN replaces 6685-00-088-3978?

There are 12 known substitutes for 6685-00-088-3978: 6685-00-063-9708, 3110-00-156-4865, 6685-00-251-1360 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 169594A?

Key specifications for 169594A: FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE; Connection Location: LOWER; Scale Inscription/background Color: BLACK FIGURES ON WHITE BACKGROUND; Nondefinitive Spec/std Data: 1 POLISHED. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-088-3978 still in active supply?

NSN 6685-00-088-3978 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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