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78657-08 — CLAMP,LOOP

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

78657-08: CLAMP,LOOP.

The CLAMP,LOOP is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING NUT, lug_width: 1.750 INCHES NOMINAL IN, overall_width: 1.680 INCHES NOMINAL IN, special_features: PART NAME ASSIGNED BY MANUFACTURER CLAMP, METRIC, CUSHIONED, HINGED, FLUSH MOUNT, style_designator: CLAMP & BRACKET, lug_hole_diameter: 0.199 INCHES MINIMUM AND 1.209 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-486-0979, 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
78657-08
NSN: 5340-01-486-0979
FSC: 5340 — Hardware, Commercial
CAGE: F6117 — DASSAULT AVIATION (FRA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING NUT
lug_width1.750 INCHES NOMINAL IN
overall_width1.680 INCHES NOMINAL IN
special_featuresPART NAME ASSIGNED BY MANUFACTURER CLAMP, METRIC, CUSHIONED, HINGED, FLUSH MOUNT
style_designatorCLAMP & BRACKET
lug_hole_diameter0.199 INCHES MINIMUM AND 1.209 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
material_thickness1.984 INCHES NOMINAL IN
loop_inside_diameter1.102 INCHES NOMINAL IN
fastening_device_typeHEXAGON CROSS RECESS HEAD SCREW
material_document_and_classificationAMS 5510 ASSN STD 1ST MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end1.960 INCHES MINIMUM AND 2.020 INCHES MAXIMUM IN
NSN5340-01-486-0979
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 78657-08 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
•
LUG HOLE DIAMETER: 0.199 INCHES MINIMUM AND 1.209 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A967-96 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
FASTENING DEVICE TYPE: HEXAGON CROSS RECESS HEAD SCREW
•
STYLE DESIGNATOR: CLAMP & BRACKET
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5510 ASSN STD 1ST MATERIAL RESPONSE BAND
•
MATERIAL THICKNESS: 1.984 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LUG HOLE DIAMETER0.199 INCHES MINIMUM AND 1.209 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A967-96 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
FASTENING DEVICE TYPEHEXAGON CROSS RECESS HEAD SCREW
STYLE DESIGNATORCLAMP & BRACKET
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD 1ST MATERIAL RESPONSE BAND
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5732 MFR REF 2ND MATERIAL RESPONSE OR AMS 5737 MFR REF 2ND MATERIAL RESPONSE CUSHION
OVERALL WIDTH1.680 INCHES NOMINAL IN
MATERIAL THICKNESS1.984 INCHES NOMINAL IN
LUG WIDTH1.750 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END1.960 INCHES MINIMUM AND 2.020 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 78657-08?
78657-08 is a CLAMP,LOOP.
What is the NSN for 78657-08?
78657-08 is cataloged in the U.S. Government catalog under NSN 5340-01-486-0979. This indicates validated use in U.S. government and defense supply chains.
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