PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1DFFMGage,pressure,dial Indicating

Desco Corp Marsh Bellofram Div · NSN 6685-00-585-3078 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-585-3078 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-585-3078. Primary manufacturer part number: 1DFFM.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Mounting Hole Diameter: 0.218 INCHES NOMINAL IN
  • FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
  • Color: BLACK CASE
  • Surface Treatment: ENAMEL CASE
  • Material: COPPER ALLOY ACTUATING ELEMENT
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SCALE DATA,DIAL DATA,POINTER DATA,CASE DATA,CONNECTOR DATA,MTG DATA
  • Material: GLASS PROTECTIVE CRYSTAL
Applications
  • Applications requiring Copper Alloy Actuating Element construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-585-3078, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Desco Corp Marsh Bellofram Div. Government technical data includes 29 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-585-3078
Primary Part Number1DFFM
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerDesco Corp Marsh Bellofram Div
StatusCANCELLED
Mounting Hole Diameter0.218 INCHES NOMINAL IN
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
ColorBLACK CASE
Surface TreatmentENAMEL CASE
MaterialCOPPER ALLOY ACTUATING ELEMENT
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY SCALE DATA,DIAL DATA,POINTER DATA,CASE DATA,CONNECTOR DATA,MTG DATA
MaterialGLASS PROTECTIVE CRYSTAL
Overall Diameter3.468 INCHES NOMINAL IN
Connection Size0.125 IN. NPT DIA IN
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Scale Accuracy2 PCT ENTIRE RANGE
AdjustabilityADJUSTABLE
Scale TypeSINGLE
Scale Smallest Increment5.0 POUNDS PER SQUARE INCH (PSI) LBS
Pointer TypeINDICATING
Connection Quantity1
Scale Range+0.0 TO 200.0 POUNDS PRESSURE PER SQUARE INCH LBS
Mounting MethodFLUSH PANEL
Connection TypeEXTERNAL
Actuation TypeSINGLE BOURDON TUBE
Bezel TypeSLIPS-ON
Dial Size2-1/2 IN. DIA IN
Connection LocationBACK
Mounting Hole Quantity3
Bolt Circle Diameter3.125 INCHES NOMINAL IN
Graduation Unit20.0 POUNDS PER SQUARE INCH LBS
Scale NamePRESSURE
Connector Type VentNOT PROVIDED
Pointer ColorBLACK
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
6685-00-089-44802 1-2 1DFFM1-8 02T060 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
6685-00-557-0625 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-580-3488J6254 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
6685-00-618-6696 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-936-604125-1001-H-02B-XFF-100 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
Cross-Reference Index
Part NumberManufacturer
1DFFM Desco Corp Marsh Bellofram Div (USA)
1-ABC-00840-AGA Desco Corp Marsh Bellofram Div (USA)
1-ABC-00840-AGA Bellofram Corporation (USA)
02001-0121 Harsco Corp Bmy-Combat Systems Div (USA)
02001-0121 Asrc Federal Facilities Logistics, Llc (USA)
2 1-2 1DFM1-8CBM160 Bellofram Corporation (USA)
Related Parts
6685-00-089-4480INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
2 1-2 1DFFM1-8 02T060
6685-00-557-0625INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-580-3488INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
J6254
6685-00-618-6696INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-936-6041INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
25-1001-H-02B-XFF-100

Frequently Asked Questions

What is NSN 6685-00-585-3078?

NSN 6685-00-585-3078 is a Gage,pressure,dial Indicating, manufactured by Desco Corp Marsh Bellofram Div, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-585-3078?

NSN 6685-00-585-3078 has 6 cross-referenced part numbers: 1DFFM (Desco Corp Marsh Bellofram Div), 1-ABC-00840-AGA (Desco Corp Marsh Bellofram Div), 1-ABC-00840-AGA (Bellofram Corporation), 02001-0121 (Harsco Corp Bmy-Combat Systems Div), 02001-0121 (Asrc Federal Facilities Logistics, Llc) and 1 more.

What NSN replaces 6685-00-585-3078?

There are 5 known substitutes for 6685-00-585-3078: 6685-00-089-4480, 6685-00-557-0625, 6685-00-580-3488 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1DFFM?

Key specifications for 1DFFM: Mounting Hole Diameter: 0.218 INCHES NOMINAL IN; FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE; Color: BLACK CASE; Surface Treatment: ENAMEL CASE. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-585-3078 still in active supply?

NSN 6685-00-585-3078 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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