PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45-1377SS02B600Gage,pressure,dial Indicating

Ashcroft Inc Dba Heise · NSN 6685-00-542-0866 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-542-0866 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-542-0866. Primary manufacturer part number: 45-1377SS02B600.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Material: GLASS PROTECTIVE CRYSTAL
  • Color: BLACK CASE
  • Mounting Hole Quantity: 3
  • Connection Size: 1/2 INCH NPT DIA IN
  • Scale Accuracy: 1/2 OF 1 PCT ENTIRE RANGE
  • Mounting Method: PANEL
  • Pointer Type: INDICATING
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-542-0866, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 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: Active.

Technical Specifications
ParameterValue
NSN6685-00-542-0866
Primary Part Number45-1377SS02B600
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
MaterialGLASS PROTECTIVE CRYSTAL
ColorBLACK CASE
Mounting Hole Quantity3
Connection Size1/2 INCH NPT DIA IN
Scale Accuracy1/2 OF 1 PCT ENTIRE RANGE
Mounting MethodPANEL
Pointer TypeINDICATING
AdjustabilityADJUSTABLE
Bezel TypeHINGE
Scale Smallest Increment5.0 POUNDS PER SQUARE INCH (PSI) LBS
Scale Inscription/background ColorWHITE FIGURES ON BLACK BACKGROUND
Connection LocationBACK
Connection TypeEXTERNAL
Actuation TypeSINGLE BOURDON TUBE
Scale TypeSINGLE
Graduation Unit50.0 POUNDS PER SQUARE INCH LBS
Overall Diameter6.312 INCHES NOMINAL IN
MaterialSTEEL ACTUATING ELEMENT
Scale NamePRESSURE
Dial Size4-1/2 IN. DIA IN
Connector Type VentNOT PROVIDED
Scale Range+0.0 TO 600.0 POUNDS PRESSURE PER SQUARE INCH LBS
Pointer ColorWHITE
Connection Quantity1
MaterialALUMINUM CASE
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
Surface TreatmentPAINT EPOXY CASE
Mounting Hole Diameter0.219 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6685-00-068-344645-1377BS02B600 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-123-2552 INTERCHANGEABLE
Gage,pressure,dial Indicating
3110-00-142-435153176 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5136-00-189-7818 INTERCHANGEABLE
Tap,thread Cutting
5935-00-192-4620 INTERCHANGEABLE
Plug,tip
3020-00-207-9284107-75 INTERCHANGEABLE
Pulley,groove
Prestolite Electric Inc
1630-00-388-9720D107-75 INTERCHANGEABLE
Adjuster,brake,inlet
Goodrich Corporation
1650-00-421-32841077-5 INTERCHANGEABLE
Kit,cure Date
The Boeing Company Div Defense
6685-00-435-9267AA446PH4RW INTERCHANGEABLE
Gage,pressure,dial Indicating
Weksler Glass Thermometer Corp
5935-00-636-6235 INTERCHANGEABLE
Adapter,connector
Cross-Reference Index
Part NumberManufacturer
AA446PM4RW Weksler Glass Thermometer Corp (USA)
45-1377SS02B600 PRIMARY Ashcroft Inc Dba Heise (USA)
176F33F Liftec Inc Div Liftec, Inc. (USA)
440R Bristol Babcock Inc Helicoid Instruments Div (USA)
45-1377SS02BXBD600 Ashcroft Inc Dba Heise (USA)
150378 Ametek, Inc. Div Aerospace & Defense (USA)
1WRF23377ATA001 Bellofram Corporation (USA)
10775 Ashcroft Inc Dba Heise (USA)
1933 Ametek, Inc. Div Aerospace & Defense (USA)
1WRF23377ATA001 Desco Corp Marsh Bellofram Div (USA)
1077S Ashcroft Inc Dba Heise (USA)
Related Parts
6685-00-068-3446INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1377BS02B600
6685-00-123-2552INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
3110-00-142-4351INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
53176
5136-00-189-7818INTERCHANGEABLE
TAP,THREAD CUTTING
5935-00-192-4620INTERCHANGEABLE
PLUG,TIP
3020-00-207-9284INTERCHANGEABLE
PULLEY,GROOVE
107-75
1630-00-388-9720INTERCHANGEABLE
ADJUSTER,BRAKE,INLET
D107-75
1650-00-421-3284INTERCHANGEABLE
KIT,CURE DATE
1077-5
6685-00-435-9267INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
AA446PH4RW
5935-00-636-6235INTERCHANGEABLE
ADAPTER,CONNECTOR
6685-00-684-1494INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6799094-840
6685-00-822-6923INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1377RS-02B-200

Frequently Asked Questions

What is NSN 6685-00-542-0866?

NSN 6685-00-542-0866 is a Gage,pressure,dial Indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-542-0866?

NSN 6685-00-542-0866 has 11 cross-referenced part numbers: AA446PM4RW (Weksler Glass Thermometer Corp), 45-1377SS02B600 (Ashcroft Inc Dba Heise), 176F33F (Liftec Inc Div Liftec, Inc.), 440R (Bristol Babcock Inc Helicoid Instruments Div), 45-1377SS02BXBD600 (Ashcroft Inc Dba Heise) and 6 more.

What NSN replaces 6685-00-542-0866?

There are 12 known substitutes for 6685-00-542-0866: 6685-00-068-3446, 6685-00-123-2552, 3110-00-142-4351 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45-1377SS02B600?

Key specifications for 45-1377SS02B600: Material: GLASS PROTECTIVE CRYSTAL; Color: BLACK CASE; Mounting Hole Quantity: 3; Connection Size: 1/2 INCH NPT DIA IN. 29 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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