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Technical Data Sheet
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34816-1 — Technical Data Sheet

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Legrand · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The CAM,LIMIT SWITCH is a Legrand industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, mounting_method: PLATE, end_item_identification: SQH-4B TOWFISH, part_name_assigned_by_controlling_agency: TOWFISH CRADLE DECK ADAPTER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-207-4980, 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
34816-1
NSN: 5306-00-207-4980
FSC: 5306
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
mounting_methodPLATE
end_item_identificationSQH-4B TOWFISH
part_name_assigned_by_controlling_agencyTOWFISH CRADLE DECK ADAPTER
NSN5306-00-207-4980
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 34816-1 · Legrand ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.250 INCHES NOMINAL IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER: 1.560 INCHES MINIMUM AND 1.590 INCHES MAXIMUM IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
•
FIRST DIAMETER FROM HEAD: 0.730 INCHES MINIMUM AND 0.740 INCHES MAXIMUM IN
•
HEAD STYLE: ROUND W/WRENCH FLATS
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: 491-98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
THREAD QUANTITY PER INCH: 20
•
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.250 INCHES NOMINAL IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER1.560 INCHES MINIMUM AND 1.590 INCHES MAXIMUM IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
FIRST DIAMETER FROM HEAD0.730 INCHES MINIMUM AND 0.740 INCHES MAXIMUM IN
HEAD STYLEROUND W/WRENCH FLATS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION491-98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL
THREAD QUANTITY PER INCH20
THREAD CLASS3A A
FASTENER LENGTH1.980 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
HEAD DIAMETER1.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
348161Interchangeable
interchangeable cross-reference
interchangeable
34816Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 34816-1?
34816-1 is a CAM,LIMIT SWITCH manufactured by Legrand.
What parts can replace 34816-1?
There are 2 known substitutes for 34816-1: 348161, 34816. Substitute compatibility should be verified for your specific system.
What is the NSN for 34816-1?
34816-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-207-4980. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: August 2026