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Technical Data Sheet
PartsTable / MRO / 31-344
31-344 ✓ Verified by PartsTable
Melissa & Doug · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

Get ready for a real POP of color! Poke the irresistible click-to-count buttons to hear satisfying "clicks" and "pops" as you count all the colorful animals on every page! This sturdy 20-page interactive board book invites kids to pop along as they identify the colors of animas from purple to green and every color in between! Poke-a-Dot® books help encourage language development, counting, and fine motor skills. Patented Pop-a-Tronic technology lets kids discover different popping sounds by poking the dots from the front or the back, with pages raised or flat! This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-154-8388, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
MRO→ MRO_GENERAL→ 31-344
NSN: 5330-00-154-8388
FSC: 5330
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
colorYELLOW
materialPAPER
case_styleSQUARE
seal_width0.469 INCHES NOMINAL IN
design_typeCYLINDRICAL
temp_rating200.0 FAHRENHEIT DEGF
document_titlePROPAQ QUICK GUIDE FOR CO2 WAVEFORMS
dustless_featurePROVIDED
overall_diameter0.375 INCHES NOMINAL IN
special_featuresMANUAL, QUICK REFERENCE GUIDE, CO2 WAVEFORMS, PROPAQ CS; ENGLISH; WELCH ALLYN
unit_package_typeBOX
housing_bore_diameter4.999 INCHES NOMINAL IN
NSN5330-00-154-8388
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 31-344 MFR: Melissa & Doug ⚠ 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
•
HOUSING BORE DIAMETER: 4.999 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
MATERIAL: LEATHER SEALING ELEMENT
•
TEMP RATING: 200.0 FAHRENHEIT DEGF
•
ACCOMMODATED SHAFT DIAMETER: 3.125 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
SEAL WIDTH: 0.469 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER4.999 INCHES NOMINAL IN
CASE STYLESQUARE
MATERIALLEATHER SEALING ELEMENT
TEMP RATING200.0 FAHRENHEIT DEGF
ACCOMMODATED SHAFT DIAMETER3.125 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
SEAL WIDTH0.469 INCHES NOMINAL IN
SPECIAL FEATURESWITH PROTECTIVE INNER CASE
MATERIALSTEEL CASE
SEALING ELEMENT STYLEANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
31344Interchangeable
interchangeable cross-reference
interchangeable
SS-C-266Interchangeable
interchangeable cross-reference
interchangeable
510Interchangeable
interchangeable cross-reference
interchangeable
31-329Interchangeable
interchangeable cross-reference
interchangeable
B31344Interchangeable
interchangeable cross-reference
interchangeable
SENSI-DISCInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31-344?
31-344 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E manufactured by Melissa & Doug. It is classified as a MRO (MRO_GENERAL).
What parts can replace 31-344?
There are 13 known substitutes for 31-344: 31344, SS-C-266, 510 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31-344?
31-344 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-154-8388. 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