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3M901-10W — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3M901-10W: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, recess_depth: 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN, hole_diameter: 0.190 INCHES MINIMUM AND 0.196 INCHES MAXIMUM IN, recess_diameter: 0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN, outside_diameter: 0.450 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN, surface_treatment: CHROMATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-340-0188, 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
3M901-10W
NSN: 5310-01-340-0188
NIINs: 013400188, 014061233
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
recess_depth0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
hole_diameter0.190 INCHES MINIMUM AND 0.196 INCHES MAXIMUM IN
recess_diameter0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
outside_diameter0.450 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN
surface_treatmentCHROMATE OVERALL
material_thickness0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
material_document_and_classificationQQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-340-0188
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3M901-10W · 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
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SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A
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STYLE DESIGNATOR: RECESSED
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MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
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OUTSIDE DIAMETER: 0.460 INCHES MINIMUM AND 0.480 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
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RECESS DIAMETER: 0.350 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CHROMATE OVERALL
•
MATERIAL: ALUMINUM ALLOY 6061 OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.460 INCHES MINIMUM AND 0.480 INCHES MAXIMUM IN
MATERIAL THICKNESS0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
RECESS DIAMETER0.350 INCHES MAXIMUM IN
SURFACE TREATMENTCHROMATE OVERALL
MATERIALALUMINUM ALLOY 6061 OVERALL
HOLE DIAMETER0.190 INCHES MINIMUM AND 0.196 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
10122214Reference document
Same NSN cross-reference
Reference document — Informative reference only
CA21062-10WSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3M901-10W?
3M901-10W is a WASHER,RECESSED.
What parts can replace 3M901-10W?
There are 2 known substitutes for 3M901-10W: 10122214, CA21062-10W. Substitute compatibility should be verified for your specific system.
What is the NSN for 3M901-10W?
3M901-10W is cataloged in the U.S. Government catalog under NSN 5310-01-340-0188. 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.