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A-A-52420 — PLUG,EXPANSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A-A-52420: PLUG,EXPANSION.

The PLUG,EXPANSION is a the manufacturer industrial component. Key specifications include radius: 0.750 INCHES NOMINAL IN, material: STEEL, outside_diameter: 0.622 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN, style_designator: CONCAVE, surface_treatment: DICHROMATE ZINC, material_thickness: 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-050-1575, 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
A-A-52420
NSN: 5340-00-050-1575
NIINs: 000501575, 000501593, 000501600, 000541412, 000541414, 000541416, 000541418, 002765853, 005317275, 008360647, 008989829, 009340085
FSC: 5340 — Hardware, Commercial
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
radius0.750 INCHES NOMINAL IN
materialSTEEL
outside_diameter0.622 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
style_designatorCONCAVE
surface_treatmentDICHROMATE ZINC
material_thickness0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
material_document_and_classificationSAE 1008 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1010 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-00-050-1575
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A-A-52420 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
•
RADIUS: 3.188 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.000 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.083 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
RADIUS3.188 INCHES NOMINAL IN
OUTSIDE DIAMETER2.000 INCHES NOMINAL IN
MATERIAL THICKNESS0.083 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES 2
A-A-52420-15Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
140089Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A-A-52420?
A-A-52420 is a PLUG,EXPANSION.
What parts can replace A-A-52420?
There are 2 known substitutes for A-A-52420: A-A-52420-15, 140089. Substitute compatibility should be verified for your specific system.
What is the NSN for A-A-52420?
A-A-52420 is cataloged in the U.S. Government catalog under NSN 5340-00-050-1575. This indicates validated use in U.S. government and defense supply chains.
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