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11646777 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

11646777: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 5086 OVERALL, thickness: 0.090 INCHES NOMINAL IN, hole_diameter: 0.325 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN, overall_diameter: 1.470 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN, center_hole_width: 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-307-4832, 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
11646777
NSN: 5310-01-307-4832
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 5086 OVERALL
thickness0.090 INCHES NOMINAL IN
hole_diameter0.325 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
overall_diameter1.470 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN
center_hole_width0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleDEE
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-A-250/7 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-307-4832
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 11646777 · 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
•
CENTER HOLE WIDTH: 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 1.470 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/7 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: ALUMINUM ALLOY 5086 OVERALL
•
CENTER HOLE SHAPE STYLE: DEE
•
HOLE DIAMETER: 0.325 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CENTER HOLE WIDTH0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
OVERALL DIAMETER1.470 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/7 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALALUMINUM ALLOY 5086 OVERALL
CENTER HOLE SHAPE STYLEDEE
HOLE DIAMETER0.325 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
THICKNESS0.090 INCHES NOMINAL IN
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11646777?
11646777 is a WASHER,FLAT.
What is the NSN for 11646777?
11646777 is cataloged in the U.S. Government catalog under NSN 5310-01-307-4832. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.