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78787 — RING,ROTARY SEAL

✓ Government record, cited
Clementoni · ORING SEAL
PRODUCT OVERVIEW

78787: RING,ROTARY SEAL.

The RING,ROTARY SEAL is a Clementoni industrial component. Key specifications include material: STEEL OVERALL, overall_length: 3.000 INCHES NOMINAL IN, handle_clearance: 1.000 INCHES NOMINAL IN, surface_treatment: PASSIVATE OVERALL, nominal_thread_size: 0.164 INCHES IN, thread_series_designator: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5340-00-146-2684, 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
78787
NSN: 5340-00-146-2684
NIINs: 001462684, 004031493, 014059946
FSC: 5340 — Hardware, Commercial
CAGE: 24930 — L3HARRIS TECHNOLOGIES, INC DIV SPACE & AIRBORNE SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length3.000 INCHES NOMINAL IN
handle_clearance1.000 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.164 INCHES IN
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
mounting_facility_quantity2
material_document_and_classificationASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OR QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
center_to_center_distance_between_mounting_facilities_parallel_to_length2.750 INCHES NOMINAL IN
NSN5340-00-146-2684
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 78787 MFR: Clementoni ⚠ 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
•
MOUNTING FACILITY QUANTITY: 2
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OR QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 2.750 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.164 INCHES IN
•
HANDLE CLEARANCE: 1.000 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY QUANTITY2
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OR QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH2.750 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH3.000 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.164 INCHES IN
HANDLE CLEARANCE1.000 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SUBSTITUTES & CROSS-REFERENCES 1
10220SS0832-7Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 78787?
78787 is a RING,ROTARY SEAL manufactured by Clementoni.
What parts can replace 78787?
There is 1 known substitute for 78787: 10220SS0832-7. Substitute compatibility should be verified for your specific system.
What is the NSN for 78787?
78787 is cataloged in the U.S. Government catalog under NSN 5340-00-146-2684. This indicates validated use in U.S. government and defense supply chains.
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