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03311M1319 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

03311M1319: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OVERALL, thickness: 0.16 INCHES NOMINAL IN, end_cut_angle: 40.0 RADIANS NOMINAL, hole_diameter: 0.203 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN, surface_treatment: PASSIVATE AND PRIMER OVERALL, width_across_flats: 0.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-618-5883, 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
03311M1319
NSN: 5310-01-618-5883
FSC: 5310 — Nuts and Washers
CAGE: 02591 — NAVAL AIR WARFARE CTR AIRCRAFT DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 301 OVERALL
thickness0.16 INCHES NOMINAL IN
end_cut_angle40.0 RADIANS NOMINAL
hole_diameter0.203 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
surface_treatmentPASSIVATE AND PRIMER OVERALL
width_across_flats0.500 INCHES NOMINAL IN
peripheral_shape_styleSQUARE
center_hole_shape_styleROUND
end_item_identificationRADAR PROCESS
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-S-5059,1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyCUDDLE WASHER FRAME 29
NSN5310-01-618-5883
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 03311M1319 · 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
•
END CUT ANGLE: 40.0 RADIANS NOMINAL
•
WIDTH ACROSS FLATS: 0.500 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002,TYPE 1 MIL SPEC 1ST TREATMENT RESPONSE AND EPOXY PRIMER PER MIL-PRF-23377,TYPE I,CL C2 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059,1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: PASSIVATE AND PRIMER OVERALL
•
PERIPHERAL SHAPE STYLE: SQUARE
TECHNICAL CHARACTERISTICS
END CUT ANGLE40.0 RADIANS NOMINAL
WIDTH ACROSS FLATS0.500 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002,TYPE 1 MIL SPEC 1ST TREATMENT RESPONSE AND EPOXY PRIMER PER MIL-PRF-23377,TYPE I,CL C2 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059,1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTPASSIVATE AND PRIMER OVERALL
PERIPHERAL SHAPE STYLESQUARE
PART NAME ASSIGNED BY CONTROLLING AGENCYCUDDLE WASHER FRAME 29
END ITEM IDENTIFICATIONRADAR PROCESS
MATERIALSTEEL COMP 301 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 1
75A324072-2001Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 03311M1319?
03311M1319 is a WASHER,FLAT.
What parts can replace 03311M1319?
There is 1 known substitute for 03311M1319: 75A324072-2001. Substitute compatibility should be verified for your specific system.
What is the NSN for 03311M1319?
03311M1319 is cataloged in the U.S. Government catalog under NSN 5310-01-618-5883. 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.