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526754 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

526754: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY CASE, case_style: SQUARE, seal_width: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN, temp_rating: -65.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF, housing_bore_diameter: 1.254 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN, sealing_element_style: ANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-280-4138, 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
526754
NSN: 5330-00-280-4138
FSC: 5330 — Packing and Gasket Materials
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY CASE
case_styleSQUARE
seal_width0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
temp_rating-65.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
housing_bore_diameter1.254 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN
sealing_element_styleANGULAR
accommodated_shaft_diameter0.998 INCHES MINIMUM AND 1.002 INCHES MAXIMUM IN
material_document_and_classificationQQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE CASE
NSN5330-00-280-4138
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 526754 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
•
TEMP RATING: -65.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
•
SEAL WIDTH: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 1.254 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE CASE
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 0.998 INCHES MINIMUM AND 1.002 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY CASE
TECHNICAL CHARACTERISTICS
TEMP RATING-65.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
SEAL WIDTH0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER1.254 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE CASE
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER0.998 INCHES MINIMUM AND 1.002 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY CASE
MATERIALRUBBER SILICONE CLASS Q SEALING ELEMENT B
SUBSTITUTES & CROSS-REFERENCES 2
405391Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
254246-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 526754?
526754 is a SEAL,PLAIN ENCASED.
What parts can replace 526754?
There are 2 known substitutes for 526754: 405391, 254246-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 526754?
526754 is cataloged in the U.S. Government catalog under NSN 5330-00-280-4138. This indicates validated use in U.S. government and defense supply chains.
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