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644P — GAGE,DEPTH,DIAL INDICATING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

644P: GAGE,DEPTH,DIAL INDICATING.

The GAGE,DEPTH,DIAL INDICATING is a the manufacturer industrial component. Key specifications include base_width: 1.200 INCHES NOMINAL IN, base_length: 2.500 INCHES NOMINAL IN, bearing_type: PLAIN, gaging_range: +0.000 TO 3.000 INCHES IN, contact_point_type: REGULAR, dial_adjustability: ADJUSTABLE. This part is cataloged in the U.S.

Government catalog under NSN 4320-00-177-3116, 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
644P
NSN: 4320-00-177-3116
NIINs: 001773116, 006849944
FSC: 4320 — Power and Hand Pumps
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
base_width1.200 INCHES NOMINAL IN
base_length2.500 INCHES NOMINAL IN
bearing_typePLAIN
gaging_range+0.000 TO 3.000 INCHES IN
contact_point_typeREGULAR
dial_adjustabilityADJUSTABLE
dial_face_diameter2.250 INCHES NOMINAL IN
reverse_movement_featureNOT INCLUDED
dial_minimum_graduation_unit0.0010 INCH IN
accessory_components_and_quantityGRADUATED RODS 2 AND LEATHER CASE 1
dial_tell-tale_revolution_counter_handNOT INCLUDED
NSN4320-00-177-3116
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GAGE,DEPTH,DIAL INDICATING TITLE COMPONENT PN 644P MFR GAGE,DEPTH,DIAL INDICA
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONCENTRIFUGAL PUMP
SUBSTITUTES & CROSS-REFERENCES 8
SL4983PC59T062Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SL6091PC59T062Reference document
Same NSN cross-reference
Reference document — Secondary reference
SL6088PC59T062Reference document
Same NSN cross-reference
Reference document — Secondary reference
SL6506PC59T062Reference document
Same NSN cross-reference
Reference document — Secondary reference
617PReference document
Same NSN cross-reference
Reference document — Secondary reference
441PReference 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 644P?
644P is a GAGE,DEPTH,DIAL INDICATING.
What parts can replace 644P?
There are 8 known substitutes for 644P: SL4983PC59T062, SL6091PC59T062, SL6088PC59T062 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 644P?
644P is cataloged in the U.S. Government catalog under NSN 4320-00-177-3116. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.