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Technical Data Sheet
84905 ✓ Verified by PartsTable
Hama · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

- Elegant aluminium frame for a stylish atmosphere<br>- Incl. mount for photos of the size 28 x 28 cm. Key specifications include material: STEEL COMP 8740 OVERALL, thickness: 0.060 INCHES NOMINAL IN, design_type: FRICTION, thread_class: 2A A, hole_diameter: 1.020 INCHES NOMINAL IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-090-4742, 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
84905
NSN: 5340-00-090-4742
FSC: 5340
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
materialSTEEL COMP 8740 OVERALL
thickness0.060 INCHES NOMINAL IN
design_typeFRICTION
thread_class2A A
hole_diameter1.020 INCHES NOMINAL IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM
overall_diameter1.680 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-S-6049 MIL SPEC ALL MATERIAL RESPONSES OVERALL
thread_size_and_series/type_designator0.687-24 UNEF
NSN5340-00-090-4742
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 84905 MFR: Hama ⚠ 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
DESIGN TYPE: FRICTION
THREAD CLASS: 2A A
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.687-24 UNEF
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
DESIGN TYPEFRICTION
THREAD CLASS2A A
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.687-24 UNEF
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
2GL153Upgraded Successor
successor cross-reference
successor
12976-GUpgraded Successor
successor cross-reference
successor
84905Interchangeable
interchangeable cross-reference
interchangeable
27-10395-2Interchangeable
interchangeable cross-reference
interchangeable
12976Interchangeable
interchangeable cross-reference
interchangeable
110 1-25/64Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 84905?
84905 is a WASHER,FLAT manufactured by Hama.
What parts can replace 84905?
There are 17 known substitutes for 84905: 2GL153, 12976-G, 84905 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 84905?
84905 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-090-4742. This indicates validated use in U.S. government and defense supply chains.
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