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11657689 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

11657689: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, seal_width: 0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN, special_features: BRASS INSERT, housing_bore_diameter: 1.252 INCHES MINIMUM AND 1.256 INCHES MAXIMUM IN, sealing_element_style: ANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-250-9946, 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
11657689
NSN: 5330-00-250-9946
FSC: 5330 — Packing and Gasket Materials
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
special_featuresBRASS INSERT
housing_bore_diameter1.252 INCHES MINIMUM AND 1.256 INCHES MAXIMUM IN
sealing_element_styleANGULAR
accommodated_shaft_diameter0.750 INCHES NOMINAL IN
NSN5330-00-250-9946
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 11657689 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
•
SEAL WIDTH: 0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 1.252 INCHES MINIMUM AND 1.256 INCHES MAXIMUM IN
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 0.750 INCHES NOMINAL IN
•
MATERIAL: STEEL CASE
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER1.252 INCHES MINIMUM AND 1.256 INCHES MAXIMUM IN
CASE STYLESQUARE
SPECIAL FEATURESBRASS INSERT
ACCOMMODATED SHAFT DIAMETER0.750 INCHES NOMINAL IN
MATERIALSTEEL CASE
MATERIALRUBBER SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 1
97869Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11657689?
11657689 is a SEAL,PLAIN ENCASED.
What parts can replace 11657689?
There is 1 known substitute for 11657689: 97869. Substitute compatibility should be verified for your specific system.
What is the NSN for 11657689?
11657689 is cataloged in the U.S. Government catalog under NSN 5330-00-250-9946. This indicates validated use in U.S. government and defense supply chains.
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