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B21189-1 — B21189-1

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B21189-1: B21189-1.

The B21189-1 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 6685-00-027-7168, 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
B21189-1
NSN: 6685-00-027-7168
FSC: 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
CAGE: 55631 — SCOMILL INC (USA)
SPECIFICATIONS
Part NumberB21189-1
NSN6685-00-027-7168
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available B21189-1 TITLE COMPONENT PN B21189-1 MFR B21189-1
KEY FEATURES
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FLEXIBLE TUBE LENGTH: 240.000 INCHES NOMINAL IN
•
BULB TYPE: PLAIN RIGID
•
ACTIVE PORTION DIAMETER: 0.438 INCHES NOMINAL IN
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SCALE INSCRIPTION/BACKGROUND COLOR: BLACK MARKINGS ON WHITE BACKGROUND
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SCALE SMALLEST INCREMENT: 1.0 DEG FAHRENHEIT
•
SCALE ACCURACY RATING: 2 PCT
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DIAL DIAMETER: 2.000 INCHES NOMINAL IN
•
INDICATOR CONNECTION METHOD: FLEXIBLE TUBE
TECHNICAL CHARACTERISTICS
FLEXIBLE TUBE LENGTH240.000 INCHES NOMINAL IN
BULB TYPEPLAIN RIGID
ACTIVE PORTION DIAMETER0.438 INCHES NOMINAL IN
SCALE INSCRIPTION/BACKGROUND COLORBLACK MARKINGS ON WHITE BACKGROUND
SCALE SMALLEST INCREMENT1.0 DEG FAHRENHEIT
SCALE ACCURACY RATING2 PCT
DIAL DIAMETER2.000 INCHES NOMINAL IN
INDICATOR CONNECTION METHODFLEXIBLE TUBE
STYLE DESIGNATORBULB W/O SOCKET
CASE DIAMETER2.750 INCHES NOMINAL IN
OTHER ITEMS IN FSC 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6685-00-001-1475 6685-00-001-1503 6685-00-001-1643 6685-00-001-1711 6685-00-001-2099 6685-00-001-2100 6685-00-001-2101 6685-00-001-2102
SUBSTITUTES & CROSS-REFERENCES 4
X5Reference document
Same NSN cross-reference
Reference document — Secondary reference
54B6668H06Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
93Reference document
Same NSN cross-reference
Reference document — Secondary reference
93DReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B21189-1?
B21189-1 is a B21189-1.
What parts can replace B21189-1?
There are 4 known substitutes for B21189-1: X5, 54B6668H06, 93 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B21189-1?
B21189-1 is cataloged in the U.S. Government catalog under NSN 6685-00-027-7168. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.