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40311-5 ✓ Verified by PartsTable
Ricoh · 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 MICROCIRCUIT,DIGITAL is a Ricoh industrial component. Key specifications include body_width: 0.265 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, body_height: 0.185 INCHES MAXIMUM IN, body_length: 0.750 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN, hole_diameter: 0.318 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN, special_features: INNER AND OUTER SKIN, style_designator: SPLIT HELICAL-RIGHT HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-249-9384, 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
40311-5
NSN: 5330-00-249-9384
FSC: 5330
CAGE: 70628 — ARROWHEAD PRODUCTS CORP (USA)
SPECIFICATIONS
body_width0.265 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
body_height0.185 INCHES MAXIMUM IN
body_length0.750 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN
hole_diameter0.318 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
special_featuresINNER AND OUTER SKIN
style_designatorSPLIT HELICAL-RIGHT HAND
features_providedHERMETICALLY SEALED AND ELECTROSTATIC SENSITIVE AND HIGH SPEED AND W/ENABLE
output_logic_formCOMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
inclosure_materialCERAMIC
storage_temp_range-65.0 TO 150.0 CELSIUS DEGC
operating_temp_range-55.0 TO 125.0 CELSIUS DEGC
input_circuit_pattern8 INPUT
NSN5330-00-249-9384
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 40311-5 MFR: Ricoh ⚠ 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
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESINNER AND OUTER SKIN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
403115Interchangeable
interchangeable cross-reference
interchangeable
500356-10Interchangeable
interchangeable cross-reference
interchangeable
SA1600-7Interchangeable
interchangeable cross-reference
interchangeable
351-3629-030Interchangeable
interchangeable cross-reference
interchangeable
MM54HC367JInterchangeable
interchangeable cross-reference
interchangeable
MC54HC367JInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40311-5?
40311-5 is a MICROCIRCUIT,DIGITAL manufactured by Ricoh.
What parts can replace 40311-5?
There are 7 known substitutes for 40311-5: 403115, 500356-10, SA1600-7 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40311-5?
40311-5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-249-9384. 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.
PartsTable Design LLC · partstable.com
Last verified: July 2026