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Technical Data Sheet
935A438-3 ✓ 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, base_width: 0.250 INCHES NOMINAL IN, overall_height: 0.300 INCHES NOMINAL IN, mounting_method: UNTHREADED HOLE(S), special_features: 2 HOLES, 0.125 IN. DIA X 0.150/.200 IN.

DEEP;56 HOLES, 0.020/.030 IN. DIA X 0.180 IN. MIN DEEP IN, style_designator: CLOSED END.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-449-0297, 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
935A438-3
NSN: 5340-01-449-0297
FSC: 5340
CAGE: 99167 — HAMILTON SUNDSTRAND CORPORATION (USA)
SPECIFICATIONS
materialRUBBER SILICONE BODY
base_width0.250 INCHES NOMINAL IN
overall_height0.300 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S)
special_features2 HOLES, 0.125 IN. DIA X 0.150/.200 IN. DEEP;56 HOLES, 0.020/.030 IN. DIA X 0.180 IN. MIN DEEP IN
style_designatorCLOSED END
base_overall_length3.150 INCHES NOMINAL IN
end_item_identificationPACER DAWN
material_document_and_classificationZZR 765B CLASS-II-50, COLOR BLUE ASSN STD SINGLE MATERIAL RESPONSE BODY
NSN5340-01-449-0297
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 935A438-3 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
BASE WIDTH: 0.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION: ZZR 765B CLASS-II-50, COLOR BLUE ASSN STD SINGLE MATERIAL RESPONSE BODY
STYLE DESIGNATOR: CLOSED END
MATERIAL: RUBBER SILICONE BODY
MOUNTING METHOD: UNTHREADED HOLE(S)
TECHNICAL CHARACTERISTICS (FLIS)
BASE WIDTH0.250 INCHES NOMINAL IN
END ITEM IDENTIFICATIONPACER DAWN
MATERIAL DOCUMENT AND CLASSIFICATIONZZR 765B CLASS-II-50, COLOR BLUE ASSN STD SINGLE MATERIAL RESPONSE BODY
STYLE DESIGNATORCLOSED END
MATERIALRUBBER SILICONE BODY
MOUNTING METHODUNTHREADED HOLE(S)
OVERALL HEIGHT0.300 INCHES NOMINAL IN
SPECIAL FEATURES2 HOLES, 0.125 IN. DIA X 0.150/.200 IN. DEEP;56 HOLES, 0.020/.030 IN. DIA X 0.180 IN. MIN DEEP IN
BASE OVERALL LENGTH3.150 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
5120PL1952734Interchangeable
interchangeable cross-reference
interchangeable
KK-3/16Interchangeable
interchangeable cross-reference
interchangeable
GGG-H-575 TY1CL2SZ3/16 INInterchangeable
interchangeable cross-reference
interchangeable
M-3/16Interchangeable
interchangeable cross-reference
interchangeable
04-M-3/16Interchangeable
interchangeable cross-reference
interchangeable
GGG-H-575Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 935A438-3?
935A438-3 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace 935A438-3?
There are 6 known substitutes for 935A438-3: 5120PL1952734, KK-3/16, GGG-H-575 TY1CL2SZ3/16 IN and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 935A438-3?
935A438-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-449-0297. This indicates validated use in U.S. government and defense supply chains.
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