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Technical Data Sheet
8611992-1 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE BODY, overall_height: 2.630 INCHES NOMINAL IN, style_designator: THRU-HOLE, base_outside_diameter: 0.475 INCHES NOMINAL IN, body_outside_diameter: 0.675 INCHES NOMINAL IN, supplementary_features: END ITEM 4520-01-254-8548 HEATER,DUCT TYPE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-291-6324, 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
8611992-1
NSN: 5340-01-291-6324
FSC: 5340
CAGE: 98752 — WARNER ROBINS AIR LOGISTICS CENTER (USA)
SPECIFICATIONS
materialRUBBER SILICONE BODY
overall_height2.630 INCHES NOMINAL IN
style_designatorTHRU-HOLE
base_outside_diameter0.475 INCHES NOMINAL IN
body_outside_diameter0.675 INCHES NOMINAL IN
supplementary_featuresEND ITEM 4520-01-254-8548 HEATER,DUCT TYPE
opening_inside_diameter0.435 INCHES NOMINAL IN
NSN5340-01-291-6324
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8611992-1 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
SUPPLEMENTARY FEATURES: END ITEM 4520-01-254-8548 HEATER,DUCT TYPE
STYLE DESIGNATOR: THRU-HOLE
MATERIAL: RUBBER SILICONE BODY
BODY OUTSIDE DIAMETER: 0.675 INCHES NOMINAL IN
OPENING INSIDE DIAMETER: 0.435 INCHES NOMINAL IN
BASE OUTSIDE DIAMETER: 0.475 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SUPPLEMENTARY FEATURESEND ITEM 4520-01-254-8548 HEATER,DUCT TYPE
STYLE DESIGNATORTHRU-HOLE
MATERIALRUBBER SILICONE BODY
OVERALL HEIGHT2.630 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.675 INCHES NOMINAL IN
OPENING INSIDE DIAMETER0.435 INCHES NOMINAL IN
BASE OUTSIDE DIAMETER0.475 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
250Upgraded Successor
successor cross-reference
successor
MIL-H-37577Upgraded Successor
successor cross-reference
successor
003930Upgraded Successor
successor cross-reference
successor
89-80778-1Upgraded Successor
successor cross-reference
successor
89-80778-2Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8611992-1?
8611992-1 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace 8611992-1?
There are 5 known substitutes for 8611992-1: 250, MIL-H-37577, 003930 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8611992-1?
8611992-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-291-6324. This indicates validated use in U.S. government and defense supply chains.
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