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1779787F — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1779787F: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 3.1 MILLIMETERS MINIMUM AND 3.4 MILLIMETERS MAXIMUM MM, hardness_rating: 41.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM, outside_diameter: 6.2 MILLIMETERS NOMINAL MM, special_features: COATING:RIV/EC 8PM;STANDARD I.S.18-1101, style_designator: SPLIT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-703-1880, 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
1779787F
NSN: 5310-01-703-1880
FSC: 5310 — Nuts and Washers
CAGE: A4249 — IVECO DEFENCE VEHICLES S.P.A. (ITA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter3.1 MILLIMETERS MINIMUM AND 3.4 MILLIMETERS MAXIMUM MM
hardness_rating41.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
outside_diameter6.2 MILLIMETERS NOMINAL MM
special_featuresCOATING:RIV/EC 8PM;STANDARD I.S.18-1101
style_designatorSPLIT
material_thickness0.7 MILLIMETERS NOMINAL MM
end_item_identification2355-01-669-0331
distance_across_split_opening0.6 MILLIMETERS NOMINAL MM
part_name_assigned_by_controlling_agencyCURVED OPEN SPRING WASHER
NSN5310-01-703-1880
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1779787F · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
DISTANCE ACROSS SPLIT OPENING: 0.6 MILLIMETERS NOMINAL MM
•
HARDNESS RATING: 41.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: SPLIT
•
OUTSIDE DIAMETER: 6.2 MILLIMETERS NOMINAL MM
•
MATERIAL THICKNESS: 0.7 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
DISTANCE ACROSS SPLIT OPENING0.6 MILLIMETERS NOMINAL MM
HARDNESS RATING41.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSPLIT
OUTSIDE DIAMETER6.2 MILLIMETERS NOMINAL MM
MATERIAL THICKNESS0.7 MILLIMETERS NOMINAL MM
SPECIAL FEATURESCOATING:RIV/EC 8PM;STANDARD I.S.18-1101
PART NAME ASSIGNED BY CONTROLLING AGENCYCURVED OPEN SPRING WASHER
END ITEM IDENTIFICATION2355-01-669-0331
MATERIALSTEEL OVERALL
HOLE DIAMETER3.1 MILLIMETERS MINIMUM AND 3.4 MILLIMETERS MAXIMUM MM
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1779787F?
1779787F is a WASHER,SPRING TENSION.
What is the NSN for 1779787F?
1779787F is cataloged in the U.S. Government catalog under NSN 5310-01-703-1880. This indicates validated use in U.S. government and defense supply chains.
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