PartsTable
Technical Data Sheet
Download PDF

78663 — SWITCH,FLOW

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

78663: SWITCH,FLOW.

The SWITCH,FLOW is a the manufacturer industrial component. Key specifications include width: 36.000 INCHES NOMINAL IN, length: 1800.000 INCHES NOMINAL IN, material: PAPER LOCATION NOT OTHERWISE SPECIFIED, thickness: 0.031 INCHES NOMINAL IN, fiber_type: PLANT, environmental_protection: GASOLINE AND MILDEW RESISTANT AND OIL RESISTANT AND WATER RESISTANT. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-530-2254, 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
78663
NSN: 5330-00-530-2254
NIINs: 005302254, 012582058
FSC: 5330 — Packing and Gasket Materials
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
width36.000 INCHES NOMINAL IN
length1800.000 INCHES NOMINAL IN
materialPAPER LOCATION NOT OTHERWISE SPECIFIED
thickness0.031 INCHES NOMINAL IN
fiber_typePLANT
environmental_protectionGASOLINE AND MILDEW RESISTANT AND OIL RESISTANT AND WATER RESISTANT
material_document_and_classificationMIL-G-12803,NO. F328148-4 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
NSN5330-00-530-2254
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 78663 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: 1800.000 INCHES NOMINAL IN
•
FIBER TYPE: PLANT
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-12803,NO. F328148-4 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
•
ENVIRONMENTAL PROTECTION: GASOLINE AND MILDEW RESISTANT AND OIL RESISTANT AND WATER RESISTANT
•
WIDTH: 36.000 INCHES NOMINAL IN
•
MATERIAL: PAPER LOCATION NOT OTHERWISE SPECIFIED
•
THICKNESS: 0.031 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH1800.000 INCHES NOMINAL IN
FIBER TYPEPLANT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-12803,NO. F328148-4 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
ENVIRONMENTAL PROTECTIONGASOLINE AND MILDEW RESISTANT AND OIL RESISTANT AND WATER RESISTANT
WIDTH36.000 INCHES NOMINAL IN
MATERIALPAPER LOCATION NOT OTHERWISE SPECIFIED
THICKNESS0.031 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 5
V5302Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MILG12803P3415AReference document
Same NSN cross-reference
Reference document — Secondary reference
16100429Reference document
Same NSN cross-reference
Reference document — Secondary reference
ASTM-F104-00Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
GSKT1-32Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 78663?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 78663?
78663 is a SWITCH,FLOW.
What parts can replace 78663?
There are 5 known substitutes for 78663: V5302, MILG12803P3415A, 16100429 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 78663?
78663 is cataloged in the U.S. Government catalog under NSN 5330-00-530-2254. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 78663

✓ 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.