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7B9968 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7B9968: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT B, case_style: RECESSED, seal_width: 1.125 INCHES NOMINAL IN, temp_rating: -40.0 FAHRENHEIT DEGF, attachment_method: ROUND HOLE, housing_bore_diameter: 4.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-176-5732, 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
7B9968
NSN: 5330-00-176-5732
FSC: 5330 — Packing and Gasket Materials
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT B
case_styleRECESSED
seal_width1.125 INCHES NOMINAL IN
temp_rating-40.0 FAHRENHEIT DEGF
attachment_methodROUND HOLE
housing_bore_diameter4.000 INCHES NOMINAL IN
sealing_element_styleVERTICAL-EXTERNAL
attachment_hole_diameter0.312 INCHES NOMINAL IN
accommodated_shaft_diameter2.500 INCHES NOMINAL IN
attachment_feature_quantity4
NSN5330-00-176-5732
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7B9968 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
•
ATTACHMENT HOLE DIAMETER: 0.312 INCHES NOMINAL IN
•
ATTACHMENT FEATURE QUANTITY: 4
•
TEMP RATING: -40.0 FAHRENHEIT DEGF
•
SEAL WIDTH: 1.125 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: VERTICAL-EXTERNAL
•
HOUSING BORE DIAMETER: 4.000 INCHES NOMINAL IN
•
CASE STYLE: RECESSED
•
ACCOMMODATED SHAFT DIAMETER: 2.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
ATTACHMENT HOLE DIAMETER0.312 INCHES NOMINAL IN
ATTACHMENT FEATURE QUANTITY4
TEMP RATING-40.0 FAHRENHEIT DEGF
SEAL WIDTH1.125 INCHES NOMINAL IN
SEALING ELEMENT STYLEVERTICAL-EXTERNAL
HOUSING BORE DIAMETER4.000 INCHES NOMINAL IN
CASE STYLERECESSED
ACCOMMODATED SHAFT DIAMETER2.500 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT A
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 1
CA5121HSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7B9968?
7B9968 is a SEAL,PLAIN ENCASED.
What parts can replace 7B9968?
There is 1 known substitute for 7B9968: CA5121H. Substitute compatibility should be verified for your specific system.
What is the NSN for 7B9968?
7B9968 is cataloged in the U.S. Government catalog under NSN 5330-00-176-5732. This indicates validated use in U.S. government and defense supply chains.
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