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2560812-2 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2560812-2: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include hole_diameter: 0.127 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN, overall_height: 0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN, outside_diameter: 0.372 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN, surface_treatment: CADMIUM OR TIN OVERALL, material_thickness: 0.002 INCHES MINIMUM AND 0.008 INCHES MAXIMUM IN, part_name_assigned_by_controlling_agency: NAVY SPECIAL PROJECT. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-485-0664, 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
2560812-2
NSN: 5310-00-485-0664
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
hole_diameter0.127 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
overall_height0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
outside_diameter0.372 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
surface_treatmentCADMIUM OR TIN OVERALL
material_thickness0.002 INCHES MINIMUM AND 0.008 INCHES MAXIMUM IN
material_document_and_classificationQQ-C-533 FED SPEC 1ST MATERIAL RESPONSE OR QQ-C-533 FED SPEC 2ND MATERIAL RESPONSE OR QQ-B-750 COMP A FED SPEC 3RD MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
surface_treatment_document_and_classificationQQ-P-416 TY 2 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-T-10727 TY 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
NSN5310-00-485-0664
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2560812-2 · 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-416 TY 2 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-T-10727 TY 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-533 FED SPEC 1ST MATERIAL RESPONSE OR QQ-C-533 FED SPEC 2ND MATERIAL RESPONSE OR QQ-B-750 COMP A FED SPEC 3RD MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.372 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.002 INCHES MINIMUM AND 0.008 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OR TIN OVERALL
•
HOLE DIAMETER: 0.127 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-T-10727 TY 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-533 FED SPEC 1ST MATERIAL RESPONSE OR QQ-C-533 FED SPEC 2ND MATERIAL RESPONSE OR QQ-B-750 COMP A FED SPEC 3RD MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.372 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
MATERIAL THICKNESS0.002 INCHES MINIMUM AND 0.008 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OR TIN OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
HOLE DIAMETER0.127 INCHES MINIMUM AND 0.133 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2560812-2?
2560812-2 is a WASHER,SPRING TENSION.
What is the NSN for 2560812-2?
2560812-2 is cataloged in the U.S. Government catalog under NSN 5310-00-485-0664. 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.