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A18872 — CIRCUIT CARD ASSEMBLY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A18872: CIRCUIT CARD ASSEMBLY.

The CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT A, case_style: SQUARE, seal_width: 0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN, surface_treatment: CADMIUM CASE, housing_bore_diameter: 1.000 INCHES NOMINAL IN, sealing_element_style: ANGULAR-OPPOSED. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-678-1349, 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
A18872
NSN: 5330-00-678-1349
NIINs: 006781349, 010373378, 013874569
FSC: 5330 — Packing and Gasket Materials
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT A
case_styleSQUARE
seal_width0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN
surface_treatmentCADMIUM CASE
housing_bore_diameter1.000 INCHES NOMINAL IN
sealing_element_styleANGULAR-OPPOSED
accommodated_shaft_diameter0.560 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
NSN5330-00-678-1349
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A18872 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: 0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR-OPPOSED
•
HOUSING BORE DIAMETER: 1.000 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 0.560 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM CASE
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT A
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR-OPPOSED
HOUSING BORE DIAMETER1.000 INCHES NOMINAL IN
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER0.560 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT A
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
SUBSTITUTES & CROSS-REFERENCES 3
512557Reference document
Same NSN cross-reference
Reference document — Secondary reference
7979499Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5330006781349Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 A18872?
A18872 is a CIRCUIT CARD ASSEMBLY.
What parts can replace A18872?
There are 3 known substitutes for A18872: 512557, 7979499, 5330006781349. Substitute compatibility should be verified for your specific system.
What is the NSN for A18872?
A18872 is cataloged in the U.S. Government catalog under NSN 5330-00-678-1349. This indicates validated use in U.S. government and defense supply chains.
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