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13D0021-052 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

13D0021-052: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OVERALL, hole_diameter: 0.260 INCHES MAXIMUM IN, outside_diameter: 0.480 INCHES NOMINAL IN, surface_treatment: PASSIVATE OVERALL, material_thickness: 0.032 INCHES NOMINAL IN, material_document_and_classification: MIL-S-5009 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-326-4941, 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
13D0021-052
NSN: 5310-01-326-4941
FSC: 5310 — Nuts and Washers
CAGE: 88277 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 301 OVERALL
hole_diameter0.260 INCHES MAXIMUM IN
outside_diameter0.480 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
material_thickness0.032 INCHES NOMINAL IN
material_document_and_classificationMIL-S-5009 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-326-4941
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 13D0021-052 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5009 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.480 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.032 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 301 OVERALL
•
HOLE DIAMETER: 0.260 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5009 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.480 INCHES NOMINAL IN
MATERIAL THICKNESS0.032 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 301 OVERALL
HOLE DIAMETER0.260 INCHES MAXIMUM IN
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

No substitute or cross-reference records for this part.

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 13D0021-052?
13D0021-052 is a WASHER,SPRING TENSION.
What is the NSN for 13D0021-052?
13D0021-052 is cataloged in the U.S. Government catalog under NSN 5310-01-326-4941. 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.