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1220260 — WASHER,FLAT

✓ Government record, cited
3M · NUT WASHER
PRODUCT OVERVIEW

1220260: WASHER,FLAT.

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Vikuiti protection films are designed for application to electronic displays. This part is cataloged in the U.S. Government catalog under NSN 5310-00-930-0234, 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
1220260
NSN: 5310-00-930-0234
NIINs: 009300234, 016631418
FSC: 5310 — Nuts and Washers
CAGE: 88907 — BRUNSWICK CORP DBA MERCURY MARINE DIV MERCURY MARINE (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyX-RAY GENERATOR
NSN5310-00-930-0234
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1220260 · 3M ⚠ 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: 0.547 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 23B-39 FSCM 96114 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: PAPER OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.373 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN
•
THICKNESS: 0.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.547 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION23B-39 FSCM 96114 MFR REF SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALPAPER OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.373 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN
THICKNESS0.062 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
C-12-20260Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 1220260?
1220260 is a WASHER,FLAT manufactured by 3M.
What parts can replace 1220260?
There is 1 known substitute for 1220260: C-12-20260. Substitute compatibility should be verified for your specific system.
What is the NSN for 1220260?
1220260 is cataloged in the U.S. Government catalog under NSN 5310-00-930-0234. 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.