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ST3M469C5MA — WASHER,CONCAVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

ST3M469C5MA: WASHER,CONCAVE.

The WASHER,CONCAVE is a the manufacturer industrial component. Key specifications include radius: 0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN, material: IRON ALLOY 660 OVERALL, recess_depth: 0.092 INCHES NOMINAL IN, hole_diameter: 0.433 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN, outside_diameter: 0.650 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN, special_features: DRY FILM AND CETYL ALCOHOL LUBRICATION. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-069-6348, 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
ST3M469C5MA
NSN: 5310-01-069-6348
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
radius0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
materialIRON ALLOY 660 OVERALL
recess_depth0.092 INCHES NOMINAL IN
hole_diameter0.433 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
outside_diameter0.650 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
special_featuresDRY FILM AND CETYL ALCOHOL LUBRICATION
style_designatorCONCAVE
surface_treatmentPASSIVATE OVERALL
material_thickness0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
specification/standard_data76301-ST3-469 MANUFACTURERS STANDARD
material_document_and_classificationAMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-069-6348
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ST3M469C5MA · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
RADIUS: 0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CONCAVE
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.650 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
•
RECESS DEPTH: 0.092 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
•
SPECIFICATION/STANDARD DATA: 76301-ST3-469 MANUFACTURERS STANDARD
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
RADIUS0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
STYLE DESIGNATORCONCAVE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.650 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
RECESS DEPTH0.092 INCHES NOMINAL IN
MATERIAL THICKNESS0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
SPECIFICATION/STANDARD DATA76301-ST3-469 MANUFACTURERS STANDARD
SPECIAL FEATURESDRY FILM AND CETYL ALCOHOL LUBRICATION
SURFACE TREATMENTPASSIVATE OVERALL
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 2
TLN1023CD3L5WSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
10122077Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST3M469C5MA?
ST3M469C5MA is a WASHER,CONCAVE.
What parts can replace ST3M469C5MA?
There are 2 known substitutes for ST3M469C5MA: TLN1023CD3L5W, 10122077. Substitute compatibility should be verified for your specific system.
What is the NSN for ST3M469C5MA?
ST3M469C5MA is cataloged in the U.S. Government catalog under NSN 5310-01-069-6348. 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.