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Technical Data Sheet
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18T177 — Technical Data Sheet

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NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER · COMPONENT
WHAT YOU NEED TO KNOW
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Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The TACHOMETER,MECHANICAL,HANDHELD is a NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER industrial component. Key specifications include UNIT TYPE: CENTRIFUGAL, MANUAL RESET: NOT PROVIDED, CARRYING CASE: PROVIDED, SPEED SELECTOR: PROVIDED, OPERATING RANGE: +300.0 TO 12000.0 FEET PER MINUTE AND +300.0 TO 12000.0 REVOLUTIONS PER MINUTE FT, MEASUREMENT UNIT: FEET PER MINUTE AND REVOLUTIONS PER MINUTE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6680-00-276-7532, 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
18T177
NSN: 6680-00-276-7532
FSC: 6680
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
UNIT TYPECENTRIFUGAL
MANUAL RESETNOT PROVIDED
CARRYING CASEPROVIDED
SCALE QUANTITY3
SPEED SELECTORPROVIDED
OPERATING RANGE+300.0 TO 12000.0 FEET PER MINUTE AND +300.0 TO 12000.0 REVOLUTIONS PER MINUTE FT
MEASUREMENT UNITFEET PER MINUTE AND REVOLUTIONS PER MINUTE
POINTER QUANTITY1
SCALE MEASUREMENT UNITREVOLUTIONS PER MINUTE
SCALE MEASUREMENT RANGE+300.0 TO 1200.0 AND +1000.0 TO 4000.0 AND +3000.0 TO 12000.0
SCALE SMALLEST INCREMENT10.0 REVOLUTIONS PER MINUTE AND 10.0 FEET PER MINUTE AND 50.0 REVOLUTIONS PER MINUTE AND 50.0 FEET PER MINUTE AND 100.0 REVOLUTIONS PER MINUTE AND 100.0 FEET PER MINUTE FT
NONDEFINITIVE SPEC/STD DATAIC-/BPA TYPE
NSN6680-00-276-7532
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER TACHOMETER,MECHANICAL,HANDHELD TITLE COMPONENT PN 18T177 MFR NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER TACHOMETER,MECHANICAL,
KEY FEATURES
•
ACCESSORY COMPONENTS AND QUANTITY: 1 CIRCUMFERENCE WHEEL DISC 12 IN.,1 LARGE RUBBER CONICAL TIP-METAL MOUNTED,1 EXTENSION BAR 4 IN.,1 LARGE RUBBER POINTED TIP-METAL MOUNTED,1 SMALL RUBBER POINTED TIP-METAL MOUNTED 1 STEEL TRIANGULAR TIP IN
•
CARRYING CASE: PROVIDED
•
NONDEFINITIVE SPEC/STD DATA: IC-/BPA TYPE
•
SCALE MEASUREMENT UNIT: REVOLUTIONS PER MINUTE
•
SPEED SELECTOR MEASUREMENT RANGE: +300.0 TO 1200.0 REVOLUTIONS PER MINUTE AND +300.0 TO 1200.0 FEET PER MINUTE AND +1000.0 TO 4000.0 REVOLUTIONS PER MINUTE AND +1000.0 TO 4000.0 FEET PER MINUTE AND +3000.0 TO 12000.0 REVOLUTIONS PER MINUTE AND +3000.0 TO 12000.0 FEET PER MINUTE FT
•
SCALE SMALLEST INCREMENT: 10.0 REVOLUTIONS PER MINUTE AND 10.0 FEET PER MINUTE AND 50.0 REVOLUTIONS PER MINUTE AND 50.0 FEET PER MINUTE AND 100.0 REVOLUTIONS PER MINUTE AND 100.0 FEET PER MINUTE FT
•
POINTER QUANTITY: 1
•
MANUAL RESET: NOT PROVIDED
TECHNICAL CHARACTERISTICS (FLIS)
ACCESSORY COMPONENTS AND QUANTITY1 CIRCUMFERENCE WHEEL DISC 12 IN.,1 LARGE RUBBER CONICAL TIP-METAL MOUNTED,1 EXTENSION BAR 4 IN.,1 LARGE RUBBER POINTED TIP-METAL MOUNTED,1 SMALL RUBBER POINTED TIP-METAL MOUNTED 1 STEEL TRIANGULAR TIP IN
CARRYING CASEPROVIDED
NONDEFINITIVE SPEC/STD DATAIC-/BPA TYPE
SCALE MEASUREMENT UNITREVOLUTIONS PER MINUTE
SPEED SELECTOR MEASUREMENT RANGE+300.0 TO 1200.0 REVOLUTIONS PER MINUTE AND +300.0 TO 1200.0 FEET PER MINUTE AND +1000.0 TO 4000.0 REVOLUTIONS PER MINUTE AND +1000.0 TO 4000.0 FEET PER MINUTE AND +3000.0 TO 12000.0 REVOLUTIONS PER MINUTE AND +3000.0 TO 12000.0 FEET PER MINUTE FT
SCALE SMALLEST INCREMENT10.0 REVOLUTIONS PER MINUTE AND 10.0 FEET PER MINUTE AND 50.0 REVOLUTIONS PER MINUTE AND 50.0 FEET PER MINUTE AND 100.0 REVOLUTIONS PER MINUTE AND 100.0 FEET PER MINUTE FT
POINTER QUANTITY1
MANUAL RESETNOT PROVIDED
OPERATING RANGE+300.0 TO 12000.0 FEET PER MINUTE AND +300.0 TO 12000.0 REVOLUTIONS PER MINUTE FT
SCALE QUANTITY3
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
1600Interchangeable
interchangeable cross-reference
interchangeable
MILT16049TYPE1CBPBInterchangeable
interchangeable cross-reference
interchangeable
MIL-T-16049Interchangeable
interchangeable cross-reference
interchangeable
JAQUET MODEL 253Interchangeable
interchangeable cross-reference
interchangeable
4401-HInterchangeable
interchangeable cross-reference
interchangeable
M1200BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 18T177?
18T177 is a TACHOMETER,MECHANICAL,HANDHELD manufactured by NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER.
What parts can replace 18T177?
There are 11 known substitutes for 18T177: 1600, MILT16049TYPE1CBPB, MIL-T-16049 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 18T177?
18T177 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6680-00-276-7532. This indicates validated use in U.S. government and defense supply chains.
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Last verified: September 2026