PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4 1-2 1DP1-4BM300Gage,pressure,dial Indicating

Desco Corp Marsh Bellofram Div · NSN 6685-00-052-7376 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-052-7376 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-052-7376. Primary manufacturer part number: 4 1-2 1DP1-4BM300.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Pointer Color: BLACK
  • Mounting Method: RIGID STEM
  • Bezel Type: SLIPS-ON
  • Scale Accuracy: 2 PCT ENTIRE RANGE
  • Surface Treatment: PAINT EPOXY CASE
  • Color: BLACK CASE
  • Connector Type Vent: NOT PROVIDED
Applications
  • Applications requiring Steel Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-052-7376, 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 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-052-7376
Primary Part Number4 1-2 1DP1-4BM300
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerDesco Corp Marsh Bellofram Div
StatusCANCELLED
Pointer ColorBLACK
Mounting MethodRIGID STEM
Bezel TypeSLIPS-ON
Scale Accuracy2 PCT ENTIRE RANGE
Surface TreatmentPAINT EPOXY CASE
ColorBLACK CASE
Connector Type VentNOT PROVIDED
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
MaterialSTEEL CASE
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
Connection LocationLOWER
Connection Size0.250 IN. NPT DIA IN
AdjustabilityNONADJUSTABLE
Scale TypeSINGLE
Connection Quantity1
Scale NamePRESSURE
Actuation TypeSINGLE BOURDON TUBE
MaterialGLASS PROTECTIVE CRYSTAL
Pointer TypeINDICATING
MaterialCOPPER ALLOY ACTUATING ELEMENT
Dial Size4-1/2 IN. DIA IN
Scale Smallest Increment5.0 POUNDS LBS
Graduation Unit30.0 POUNDS LBS
Scale Range+0.000 TO 300.000 POUNDS PRESSURE PER SQUARE INCH LBS
Overall Diameter4.797 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
6685-00-985-50074 1-2 1DP1-4BM300 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
Cross-Reference Index
Part NumberManufacturer
4 1-2 1DP1-4BM300 Desco Corp Marsh Bellofram Div (USA)
4 1-2 1DP0-300 Desco Corp Marsh Bellofram Div (USA)
Related Parts
6685-00-985-5007INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
4 1-2 1DP1-4BM300

Frequently Asked Questions

What is NSN 6685-00-052-7376?

NSN 6685-00-052-7376 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 6685-00-052-7376?

NSN 6685-00-052-7376 has 2 cross-referenced part numbers: 4 1-2 1DP1-4BM300 (Desco Corp Marsh Bellofram Div), 4 1-2 1DP0-300 (Desco Corp Marsh Bellofram Div).

What NSN replaces 6685-00-052-7376?

There is 1 known substitute for 6685-00-052-7376: 6685-00-985-5007. Verify interchangeability with system specifications before substitution.

What are the specifications of 4 1-2 1DP1-4BM300?

Key specifications for 4 1-2 1DP1-4BM300: Pointer Color: BLACK; Mounting Method: RIGID STEM; Special Features: HYDRAULIC CLEANED; MAX RECORDING HAND; Bezel Type: SLIPS-ON. 28 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-052-7376 still in active supply?

NSN 6685-00-052-7376 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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