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PartsTable / COMPONENT / 1901T-0-400-4-1/2X1/4 NPT
1901T-0-400-4-1/2X1/4 NPT ✓ 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 1901T-0-400-4-1/2X1/4 NPT is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-088-8285, 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
1901T-0-400-4-1/2X1/4 NPT
NSN: 6685-00-088-8285
FSC: 6685
CAGE: 61349 — AMETEK, INC. DIV AEROSPACE & DEFENSE (USA)
SPECIFICATIONS
Part Number1901T-0-400-4-1/2X1/4 NPT
NSN6685-00-088-8285
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 1901T-0-400-4-1/2X1/4 NPT TITLE COMPONENT PN 1901T-0-400-4-1/2X1/4 NPT MFR 1901T-0-400-4-1/2X1/4
KEY FEATURES
•
MOUNTING HOLE QUANTITY: 3
•
MATERIAL: ALUMINUM AND IRON CASE
•
SCALE INSCRIPTION/BACKGROUND COLOR: BLACK FIGURES ON WHITE BACKGROUND
•
FSC APPLICATION DATA: GAGE,PRESSURE,DIAL INDICATING EXCEPT ENGINE INDICATING EXCEPT ENGINE
•
CONNECTION LOCATION: LOWER
•
OVERALL DIAMETER: 5.812 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 5.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING HOLE QUANTITY3
MATERIALALUMINUM AND IRON CASE
OVERALL DEPTH2.156 INCHES NOMINAL IN
SCALE INSCRIPTION/BACKGROUND COLORBLACK FIGURES ON WHITE BACKGROUND
FSC APPLICATION DATAGAGE,PRESSURE,DIAL INDICATING EXCEPT ENGINE INDICATING EXCEPT ENGINE
CONNECTION LOCATIONLOWER
OVERALL DIAMETER5.812 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER5.375 INCHES NOMINAL IN
CONNECTOR TYPE VENTNOT PROVIDED
MATERIALBRONZE ACTUATING ELEMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
155374Interchangeable
interchangeable cross-reference
interchangeable
155359 CLInterchangeable
interchangeable cross-reference
interchangeable
1901TInterchangeable
interchangeable cross-reference
interchangeable
155356Interchangeable
interchangeable cross-reference
interchangeable
130132Interchangeable
interchangeable cross-reference
interchangeable
1510Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1901T-0-400-4-1/2X1/4 NPT?
1901T-0-400-4-1/2X1/4 NPT is a 1901T-0-400-4-1/2X1/4 NPT.
What parts can replace 1901T-0-400-4-1/2X1/4 NPT?
There are 18 known substitutes for 1901T-0-400-4-1/2X1/4 NPT: 155374, 155359 CL, 1901T and 15 more. Substitute compatibility should be verified for your specific system.
Is 1901T-0-400-4-1/2X1/4 NPT still available?
1901T-0-400-4-1/2X1/4 NPT 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