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12358299 — CLAMP,SYNCHRO

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12358299: CLAMP,SYNCHRO.

The CLAMP,SYNCHRO is a the manufacturer industrial component. Key specifications include width: 0.312 INCHES NOMINAL IN, height: 0.123 INCHES NOMINAL IN, length: 0.375 INCHES NOMINAL IN, material: STEEL COMP 303 OR STEEL COMP 304, hole_diameter: 0.125 INCHES NOMINAL IN, effective_height: 0.078 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-423-5976, 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
12358299
NSN: 5340-01-423-5976
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
width0.312 INCHES NOMINAL IN
height0.123 INCHES NOMINAL IN
length0.375 INCHES NOMINAL IN
materialSTEEL COMP 303 OR STEEL COMP 304
hole_diameter0.125 INCHES NOMINAL IN
effective_height0.078 INCHES NOMINAL IN
effective_length0.078 INCHES NOMINAL IN
style_designatorSQUARE
surface_treatmentPASSIVATE
outside_edge_to_bolt_hole_center_distance_along_width0.156 INCHES NOMINAL IN
outside_edge_to_bolt_hole_center_distance_along_length0.182 INCHES NOMINAL IN
NSN5340-01-423-5976
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12358299 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
•
LENGTH: 0.375 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SQUARE
•
EFFECTIVE LENGTH: 0.078 INCHES NOMINAL IN
•
EFFECTIVE HEIGHT: 0.078 INCHES NOMINAL IN
•
HEIGHT: 0.123 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE
•
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH: 0.182 INCHES NOMINAL IN
•
WIDTH: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH0.375 INCHES NOMINAL IN
STYLE DESIGNATORSQUARE
EFFECTIVE LENGTH0.078 INCHES NOMINAL IN
EFFECTIVE HEIGHT0.078 INCHES NOMINAL IN
HEIGHT0.123 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH0.182 INCHES NOMINAL IN
WIDTH0.312 INCHES NOMINAL IN
MATERIALSTEEL COMP 303 OR STEEL COMP 304
HOLE DIAMETER0.125 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 12358299?
12358299 is a CLAMP,SYNCHRO.
What is the NSN for 12358299?
12358299 is cataloged in the U.S. Government catalog under NSN 5340-01-423-5976. 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.