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Technical Data Sheet
SQ12 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The CLAMP,SYNCHRO is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, thread_class: 2A A, furnished_items: SCREW, nominal_thread_size: 4.000 INCHES IN, thread_quantity_per_inch: 40, thread_series_designator: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-227-6810, 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
SQ12
NSN: 5340-01-227-6810
FSC: 5340
CAGE: 29440 — W. M. BERG, INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
thread_class2A A
furnished_itemsSCREW
nominal_thread_size4.000 INCHES IN
thread_quantity_per_inch40
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5340-01-227-6810
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SQ12 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
FURNISHED ITEMS: SCREW
NOMINAL THREAD SIZE: 4.000 INCHES IN
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
THREAD CLASS: 2A A
THREAD QUANTITY PER INCH: 40
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS (FLIS)
FURNISHED ITEMSSCREW
NOMINAL THREAD SIZE4.000 INCHES IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD CLASS2A A
THREAD QUANTITY PER INCH40
SPECIAL FEATURESTHREAD LENGTH: 0.375 IN. NOMINAL; RADIUS: 0.195 IN. NOMINAL; OUTSIDE DIAMETER: 0.390 IN. NOMINAL; MOUNTING HOLE DIAMETER: 0.112 IN. NOMINAL; LOCK LEG LENGTH: 0.060 IN. NOMINAL; LOCK LEG WIDTH: 0.390 IN. NOMINAL IN
MATERIALSTEEL CORROSION RESISTING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
LRL100MInterchangeable
interchangeable cross-reference
interchangeable
70-109Interchangeable
interchangeable cross-reference
interchangeable
L37Interchangeable
interchangeable cross-reference
interchangeable
R361474-1Interchangeable
interchangeable cross-reference
interchangeable
SP102-1Interchangeable
interchangeable cross-reference
interchangeable
51001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SQ12?
SQ12 is a CLAMP,SYNCHRO.
What parts can replace SQ12?
There are 12 known substitutes for SQ12: LRL100M, 70-109, L37 and 9 more. Substitute compatibility should be verified for your specific system.
Is SQ12 still available?
SQ12 is currently cancelled.
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