PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2 1-2 1DP1-4BM600RBGage,pressure,dial Indicating

Bellofram Corporation · NSN 6685-00-883-1811 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-883-1811 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-883-1811. Primary manufacturer part number: 2 1-2 1DP1-4BM600RB.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Overall Diameter: 2.719 INCHES NOMINAL IN
  • Color: BLACK CASE
  • Material: COPPER ALLOY ACTUATING ELEMENT
  • Material: STEEL CASE
  • Surface Treatment: PAINT EPOXY CASE
  • Material: GLASS PROTECTIVE CRYSTAL
  • Scale Accuracy: 2 PCT ENTIRE RANGE
Applications
  • Applications requiring Copper Alloy Actuating Element construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-883-1811, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Bellofram Corporation. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-883-1811
Primary Part Number2 1-2 1DP1-4BM600RB
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerBellofram Corporation
StatusCANCELLED
Overall Diameter2.719 INCHES NOMINAL IN
ColorBLACK CASE
MaterialCOPPER ALLOY ACTUATING ELEMENT
MaterialSTEEL CASE
Surface TreatmentPAINT EPOXY CASE
MaterialGLASS PROTECTIVE CRYSTAL
Scale Accuracy2 PCT ENTIRE RANGE
Bezel TypeSLIPS-ON
Mounting MethodRIGID STEM
Scale Range+0.0 TO 600.0 POUNDS PRESSURE PER SQUARE INCH LBS
AdjustabilityADJUSTABLE
Actuation TypeSINGLE BOURDON TUBE
Connection TypeEXTERNAL
Connection Quantity1
Scale TypeSINGLE
Dial Size2-1/2 IN. DIA IN
Pointer TypeINDICATING
Scale Smallest Increment10.0 POUNDS PER SQUARE INCH (PSI) LBS
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Connection Size0.250 IN. NPT IN
Connector Type VentNOT PROVIDED
Connection LocationLOWER
Pointer ColorBLACK
Graduation Unit100.0 POUNDS PER SQUARE INCH LBS
Scale NamePRESSURE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
6685-00-061-1797J1852E INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
6685-00-265-0909GA288 INTERCHANGEABLE
Gage,pressure,dial Indicating
Illinois Tool Works Inc.
6685-00-424-5726162988 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-514-368746648-0 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-530-0092J0658 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
6685-00-753-28142 1-2 1DP1-4BM100RB INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
6685-00-760-3795P500 1/8CBM1 1/2IN30PSI INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-763-520920-1005H02B 0/160 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-846-1875J4058 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
6685-00-985-50074 1-2 1DP1-4BM300 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
Cross-Reference Index
Part NumberManufacturer
1DP Desco Corp Marsh Bellofram Div (USA)
40L23 Mcmaster-Carr Supply Co (USA)
2 1-2 1DP1-4BM600RB PRIMARY Bellofram Corporation (USA)
2 1-2 1DP1-4BM600RB Desco Corp Marsh Bellofram Div (USA)
J4864 Desco Corp Marsh Bellofram Div (USA)
7141548 San Antonio Air Logistics Center (USA)
2 1-2 1DP1-4 600 Desco Corp Marsh Bellofram Div (USA)
GAG141 Worthington Compressors Inc Air Power and Construction Equip Div (USA)
Related Parts
6685-00-061-1797INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
J1852E
6685-00-265-0909INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
GA288
6685-00-424-5726INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
162988
6685-00-514-3687INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
46648-0
6685-00-530-0092INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
J0658
6685-00-753-2814INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
2 1-2 1DP1-4BM100RB
6685-00-760-3795INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
P500 1/8CBM1 1/2IN30PSI
6685-00-763-5209INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
20-1005H02B 0/160
6685-00-846-1875INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
J4058
6685-00-985-5007INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
4 1-2 1DP1-4BM300

Frequently Asked Questions

What is NSN 6685-00-883-1811?

NSN 6685-00-883-1811 is a Gage,pressure,dial Indicating, manufactured by Bellofram Corporation, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-883-1811?

NSN 6685-00-883-1811 has 8 cross-referenced part numbers: 1DP (Desco Corp Marsh Bellofram Div), 40L23 (Mcmaster-Carr Supply Co), 2 1-2 1DP1-4BM600RB (Bellofram Corporation), 2 1-2 1DP1-4BM600RB (Desco Corp Marsh Bellofram Div), J4864 (Desco Corp Marsh Bellofram Div) and 3 more.

What NSN replaces 6685-00-883-1811?

There are 10 known substitutes for 6685-00-883-1811: 6685-00-061-1797, 6685-00-265-0909, 6685-00-424-5726 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2 1-2 1DP1-4BM600RB?

Key specifications for 2 1-2 1DP1-4BM600RB: Overall Diameter: 2.719 INCHES NOMINAL IN; Color: BLACK CASE; Material: COPPER ALLOY ACTUATING ELEMENT; Material: STEEL CASE. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-883-1811 still in active supply?

NSN 6685-00-883-1811 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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