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Technical Data Sheet
PartsTable / O-RING / 78803
78803 ✓ Verified by PartsTable
Dataflex · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

This mobile AV centre is suitable for TV's up to 38"/96cm. The doors can be opened a 270° and, when closed, can be locked by a cylinder lock. The four castors are equipped with a skid proof tread of which two are lockable.

Ventilation holes have been added at the top of the back panel to allow sufficient cooling.<br><br>* Mobile AV Center, complete with leg set and castors<br>* For screens up to 38"/96cm<br>* Additionally equipped with 2 storage compartments<br>* Space for media equipment, DVD's, etc.<br>* Integrated cable management<br>* Ventilation cut-out for air flow<br>* Dimensions storage compartment (wxdxh): 450 x 150 x 400mm<br>* Dimensions (wxdxh): 1080 x 650 x 1650-1800mm This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-148-1121, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
78803
NSN: 5331-00-148-1121
FSC: 5331 — O-RING
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
general_characteristics_item_descriptionCRESCRES;0.152 IN. W; ON A 2.780 IN. RADIUS; FOR 6.000 IN. BUTTERFLY VALVE IN
NSN5331-00-148-1121
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 78803 MFR: Dataflex ⚠ 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
•
CENTER HOLE DIAMETER: 0.375 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CENTER HOLE DIAMETER0.375 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
28-7140Interchangeable
interchangeable cross-reference
interchangeable
2-012N674-70Interchangeable
interchangeable cross-reference
interchangeable
6V-8397Interchangeable
interchangeable cross-reference
interchangeable
A00542Interchangeable
interchangeable cross-reference
interchangeable
CI-0012Interchangeable
interchangeable cross-reference
interchangeable
W101-2-012Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 78803?
78803 is a SEGMENT,VALVE manufactured by Dataflex.
What parts can replace 78803?
There are 14 known substitutes for 78803: 28-7140, 2-012N674-70, 6V-8397 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 78803?
78803 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-148-1121. 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