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2041AS920 — BOOT,DUST AND MOISTURE SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2041AS920: 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: 1.100 INCHES NOMINAL IN, special_features: FINISH IS ADHESIVE COATED, COLOR IS BLACK, style_designator: THRU-HOLE, body_outside_diameter: 0.420 INCHES NOMINAL IN, opening_inside_diameter: 0.210 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-410-7476, 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
2041AS920
NSN: 5340-01-410-7476
NIINs: 014107476, 014107483, 014119301
FSC: 5340 — Hardware, Commercial
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialPLASTIC POLYOLEFIN BODY
overall_height1.100 INCHES NOMINAL IN
special_featuresFINISH IS ADHESIVE COATED, COLOR IS BLACK
style_designatorTHRU-HOLE
body_outside_diameter0.420 INCHES NOMINAL IN
opening_inside_diameter0.210 INCHES MAXIMUM IN
NSN5340-01-410-7476
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2041AS920 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: 0.290 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.420 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THRU-HOLE
•
MATERIAL: PLASTIC POLYOLEFIN BODY
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.100 INCHES NOMINAL IN
OPENING INSIDE DIAMETER0.290 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.420 INCHES NOMINAL IN
STYLE DESIGNATORTHRU-HOLE
MATERIALPLASTIC POLYOLEFIN BODY
SUBSTITUTES & CROSS-REFERENCES 2
2041AS920-01Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
10138443Reference 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 2041AS920?
2041AS920 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace 2041AS920?
There are 2 known substitutes for 2041AS920: 2041AS920-01, 10138443. Substitute compatibility should be verified for your specific system.
What is the NSN for 2041AS920?
2041AS920 is cataloged in the U.S. Government catalog under NSN 5340-01-410-7476. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.