PartsTable
Technical Data Sheet
31978 ✓ Verified by PartsTable
Freecom · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

<b>Your movies, photos and music within reach</b><br>The Network Storage Centre is the central storage and access point for all your movies, videos, photos, music and other files. Share and access your files from any computer connected to your computer network, or access shared files securely over the internet. Ideal for small to medium sized businesses and home users; the Network Storage Center provides one central storage solution.<br><br><b>Easily play your movies on your TV</b><br>Easily connect the Network Storage Center to your network router.

With a simple set up process, you do not need any advanced network knowledge to get started. You can even easily play your movies, music and photos on any TV with DLNA support.<br><br><b>Looks great</b><br>Freecom’s Storage Network Center has a sleek aluminium, heat absorbing design – its great looks are hard to miss. Made from cool aluminium with a glossy black front finished with the chrome Freecom logo, this drive stands out from the cro This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-033-9341, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
31978
NSN: 5330-00-033-9341
FSC: 5330
CAGE: 97271 — DANA LIGHT AXLE PRODUCTS, LLC DBA DANA LIGHT AXLE PRODUCTS (USA)
SPECIFICATIONS
document_typeINDUSTRIAL DRAWING
document_source97271
document_identification31978
component_document_originINDUSTRIAL
NSN5330-00-033-9341
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 31978 MFR: Freecom ⚠ 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
DOCUMENT SOURCE: 97271
DOCUMENT IDENTIFICATION: 31978
COMPONENT DOCUMENT ORIGIN: INDUSTRIAL
DOCUMENT TYPE: INDUSTRIAL DRAWING
TECHNICAL CHARACTERISTICS (FLIS)
DOCUMENT SOURCE97271
DOCUMENT IDENTIFICATION31978
COMPONENT DOCUMENT ORIGININDUSTRIAL
DOCUMENT TYPEINDUSTRIAL DRAWING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
34-687Interchangeable
interchangeable cross-reference
interchangeable
B4260AInterchangeable
interchangeable cross-reference
interchangeable
57-1243Interchangeable
interchangeable cross-reference
interchangeable
18272-19Interchangeable
interchangeable cross-reference
interchangeable
M1222RN4C26GFNNInterchangeable
interchangeable cross-reference
interchangeable
20916Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31978?
31978 is a GASKET SET manufactured by Freecom.
What parts can replace 31978?
There are 7 known substitutes for 31978: 34-687, B4260A, 57-1243 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31978?
31978 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-033-9341. This indicates validated use in U.S. government and defense supply chains.
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