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HD298 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The HD298 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-067-7817, indicating validated use in U.S. government and defense logistics supply chains.

Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
HD298
NSN: 6685-00-067-7817
FSC: 6685
CAGE: 70462 — BRISTOL BABCOCK INC HELICOID INSTRUMENTS DIV (USA)
SPECIFICATIONS
Part NumberHD298
NSN6685-00-067-7817
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HD298 TITLE COMPONENT PN HD298 MFR HD298
KEY FEATURES
•
BOLT CIRCLE DIAMETER: 4.250 INCHES NOMINAL IN
•
CONNECTION LOCATION: BACK
•
CONNECTION SIZE: 0.250 IN. NPT DIA IN
•
SURFACE TREATMENT: ENAMEL CASE
•
CONNECTOR TYPE VENT: NOT PROVIDED
•
SCALE ACCURACY: 1 PERCENT ENTIRE RANGE
•
MOUNTING HOLE DIAMETER: 0.156 INCHES NOMINAL IN
•
FSC APPLICATION DATA: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
TECHNICAL CHARACTERISTICS (FLIS)
BOLT CIRCLE DIAMETER4.250 INCHES NOMINAL IN
CONNECTION LOCATIONBACK
CONNECTION SIZE0.250 IN. NPT DIA IN
SURFACE TREATMENTENAMEL CASE
CONNECTOR TYPE VENTNOT PROVIDED
SCALE ACCURACY1 PERCENT ENTIRE RANGE
MOUNTING HOLE DIAMETER0.156 INCHES NOMINAL IN
FSC APPLICATION DATAGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
MATERIALGLASS PROTECTIVE CRYSTAL
SCALE INSCRIPTION/BACKGROUND COLORBLACK FIGURES ON WHITE BACKGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
35-410R-1/4L-0-400Interchangeable
interchangeable cross-reference
interchangeable
410RInterchangeable
interchangeable cross-reference
interchangeable
2312693-1Interchangeable
interchangeable cross-reference
interchangeable
35-410R-1/4L-0-160Interchangeable
interchangeable cross-reference
interchangeable
2312693-2Interchangeable
interchangeable cross-reference
interchangeable
35-410R-1/4L-0/60Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HD298?
HD298 is a HD298.
What parts can replace HD298?
There are 30 known substitutes for HD298: 35-410R-1/4L-0-400, 410R, 2312693-1 and 27 more. Substitute compatibility should be verified for your specific system.
Is HD298 still available?
HD298 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026