PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

138054Gage,pressure,dial Indicating

Ametek, Inc. Div Aerospace & Defense · NSN 6685-01-055-9642 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-055-9642 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-055-9642. Primary manufacturer part number: 138054.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Mounting Hole Quantity: 3
  • Color: BLACK CASE
  • Material: PLASTIC AND STEEL CASE
  • Overall Diameter: 4.840 INCHES NOMINAL IN
  • Mounting Hole Diameter: 0.219 INCHES NOMINAL IN
  • Mounting Method: PANEL FLANGE
  • Connection Quantity: 1
Applications
  • Applications requiring Plastic and Steel Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-055-9642, 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 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-055-9642
Primary Part Number138054
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAmetek, Inc. Div Aerospace & Defense
StatusACTIVE
Mounting Hole Quantity3
ColorBLACK CASE
MaterialPLASTIC AND STEEL CASE
Overall Diameter4.840 INCHES NOMINAL IN
Mounting Hole Diameter0.219 INCHES NOMINAL IN
Mounting MethodPANEL FLANGE
Connection Quantity1
Bezel TypeTHREAD
Dial Size3-1/2 IN. DIA IN
Scale Accuracy2 PCT MID-RANGE; 3 PCT AT ENDS
Bolt Circle Diameter4.250 INCHES NOMINAL IN
MaterialPLASTIC PROTECTIVE CRYSTAL
Connection TypeEXTERNAL
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Pointer TypeINDICATING
Scale Range+0.000 TO 30.000 POUNDS PRESSURE PER SQUARE INCH LBS
Scale TypeCIRCULAR AND DIAL
Connection LocationBACK, CENTER
AdjustabilityADJUSTABLE
Actuation TypeBOURDON TUBE
Scale NamePOUNDS PRESSURE
Connector Type VentNOT PROVIDED
Connection Size0.250 IN. NPT DIA IN
Pointer ColorBLACK
Surface TreatmentPAINT EPOXY CASE
MaterialCOPPER ALLOY 511 ACTUATING ELEMENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
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
6685-00-401-2337 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-557-5878P845FF-2 1/2-1/8B-0/15 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-618-6696 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-812-9035 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-878-7161164451 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-904-4845P845FF-0/300PSI INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-01-143-3599P845FF-164452 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
Cross-Reference Index
Part NumberManufacturer
P845FF0-30 1/4NPTCBM Ametek, Inc. Div Aerospace & Defense (USA)
138054 PRIMARY Ametek, Inc. Div Aerospace & Defense (USA)
P845FF0-30 1/4NPT BACKMOUNT Ametek, Inc. Div Aerospace & Defense (USA)
P845FF 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
6685-00-401-2337INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-557-5878INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
P845FF-2 1/2-1/8B-0/15
6685-00-618-6696INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-812-9035INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-878-7161INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164451
6685-00-904-4845INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
P845FF-0/300PSI
6685-01-143-3599INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
P845FF-164452

Frequently Asked Questions

What is NSN 6685-01-055-9642?

NSN 6685-01-055-9642 is a Gage,pressure,dial Indicating, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-055-9642?

NSN 6685-01-055-9642 has 4 cross-referenced part numbers: P845FF0-30 1/4NPTCBM (Ametek, Inc. Div Aerospace & Defense), 138054 (Ametek, Inc. Div Aerospace & Defense), P845FF0-30 1/4NPT BACKMOUNT (Ametek, Inc. Div Aerospace & Defense), P845FF (Ametek, Inc. Div Aerospace & Defense).

What NSN replaces 6685-01-055-9642?

There are 9 known substitutes for 6685-01-055-9642: 6685-00-074-4669, 6685-00-088-0059, 6685-00-401-2337 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 138054?

Key specifications for 138054: Mounting Hole Quantity: 3; Color: BLACK CASE; Material: PLASTIC AND STEEL CASE; Overall Diameter: 4.840 INCHES NOMINAL IN. 28 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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