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2037AS557 — BOOT,DUST AND MOISTURE SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2037AS557: BOOT,DUST AND MOISTURE SEAL.

The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYOLEFIN BODY, overall_height: 0.980 INCHES NOMINAL IN, style_designator: THRU-HOLE, body_outside_diameter: 0.620 INCHES MINIMUM IN, opening_inside_diameter: 0.430 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-410-7472, 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
2037AS557
NSN: 5340-01-410-7472
NIINs: 014107472, 014107475, 014107479, 014107480, 014107640, 014108956
FSC: 5340 — Hardware, Commercial
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialPLASTIC POLYOLEFIN BODY
overall_height0.980 INCHES NOMINAL IN
style_designatorTHRU-HOLE
body_outside_diameter0.620 INCHES MINIMUM IN
opening_inside_diameter0.430 INCHES MINIMUM IN
NSN5340-01-410-7472
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2037AS557 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
•
OPENING INSIDE DIAMETER: 0.590 INCHES MINIMUM IN
•
BODY OUTSIDE DIAMETER: 0.620 INCHES MINIMUM IN
•
STYLE DESIGNATOR: THRU-HOLE
•
MATERIAL: PLASTIC POLYOLEFIN BODY
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.100 INCHES NOMINAL IN
OPENING INSIDE DIAMETER0.590 INCHES MINIMUM IN
BODY OUTSIDE DIAMETER0.620 INCHES MINIMUM IN
STYLE DESIGNATORTHRU-HOLE
MATERIALPLASTIC POLYOLEFIN BODY
SUBSTITUTES & CROSS-REFERENCES 3
10138447Reference document
Same NSN cross-reference
Reference document — Informative reference only
234A032-3S/200Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2037AS557-03Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2037AS557?
2037AS557 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace 2037AS557?
There are 3 known substitutes for 2037AS557: 10138447, 234A032-3S/200, 2037AS557-03. Substitute compatibility should be verified for your specific system.
What is the NSN for 2037AS557?
2037AS557 is cataloged in the U.S. Government catalog under NSN 5340-01-410-7472. This indicates validated use in U.S. government and defense supply chains.
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