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3277301 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3277301: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: LEATHER OVERALL, thickness: 0.162 INCHES NOMINAL IN, hole_diameter: 2.286 INCHES NOMINAL IN, overall_diameter: 3.795 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-366-4369, 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
3277301
NSN: 5310-00-366-4369
FSC: 5310 — Nuts and Washers
CAGE: 55380 — HATCH & KIRK, INC. (USA)
SPECIFICATIONS
materialLEATHER OVERALL
thickness0.162 INCHES NOMINAL IN
hole_diameter2.286 INCHES NOMINAL IN
overall_diameter3.795 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-366-4369
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3277301 · 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
•
OVERALL DIAMETER: 3.795 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: LEATHER OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 2.286 INCHES NOMINAL IN
•
THICKNESS: 0.162 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER3.795 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALLEATHER OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER2.286 INCHES NOMINAL IN
THICKNESS0.162 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 7
3375365Reference document
Same NSN cross-reference
Reference document — Secondary reference
YMS1S41-309PC94Reference document
Same NSN cross-reference
Reference document — Secondary reference
8190370Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
810370Reference document
Same NSN cross-reference
Reference document — Secondary reference
3371181Reference document
Same NSN cross-reference
Reference document — Secondary reference
3275577Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3277301?
3277301 is a WASHER,FLAT.
What parts can replace 3277301?
There are 7 known substitutes for 3277301: 3375365, YMS1S41-309PC94, 8190370 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3277301?
3277301 is cataloged in the U.S. Government catalog under NSN 5310-00-366-4369. 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.