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F1084 — Technical Data Sheet

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— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.031 INCHES NOMINAL IN, hole_diameter: 1.281 INCHES NOMINAL IN, overall_diameter: 2.438 INCHES NOMINAL IN, surface_treatment: CADMIUM OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System under NSN 5310-00-275-6634, 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
F1084
NSN: 5310-00-275-6634
FSC: 5310
CAGE: 54713 — EATON CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.031 INCHES NOMINAL IN
hole_diameter1.281 INCHES NOMINAL IN
overall_diameter2.438 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-275-6634
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: F1084 · 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
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
HOLE DIAMETER: 1.281 INCHES NOMINAL IN
•
OVERALL DIAMETER: 2.438 INCHES NOMINAL IN
•
THICKNESS: 0.031 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER1.281 INCHES NOMINAL IN
OVERALL DIAMETER2.438 INCHES NOMINAL IN
THICKNESS0.031 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
CENTER HOLE SHAPE STYLEROUND
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
A812-60RInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
TABLE 11, D2 3/4IN, A60DEGInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
45145InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
40417InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
64A98B417-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
40417 ITEM 35InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F1084?
F1084 is a WASHER,FLAT.
What parts can replace F1084?
There are 17 known substitutes for F1084: A812-60R, TABLE 11, D2 3/4IN, A60DEG, 45145 and 14 more. Substitute compatibility should be verified for your specific system.
Is F1084 still available?
F1084 is currently cancelled.
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Last verified: October 2026