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3810005-2 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3810005-2: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 2.940 INCHES MINIMUM AND 2.960 INCHES MAXIMUM IN, outside_diameter: 3.510 INCHES MINIMUM AND 3.530 INCHES MAXIMUM IN, style_designator: KEY, material_thickness: 0.025 INCHES NOMINAL IN, internal_straight_key_width: 0.720 INCHES MINIMUM AND 0.740 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-013-9645, 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
3810005-2
NSN: 5310-01-013-9645
FSC: 5310 — Nuts and Washers
CAGE: 99193 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - PHOENIX (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter2.940 INCHES MINIMUM AND 2.960 INCHES MAXIMUM IN
outside_diameter3.510 INCHES MINIMUM AND 3.530 INCHES MAXIMUM IN
style_designatorKEY
material_thickness0.025 INCHES NOMINAL IN
internal_key_quantity3
internal_straight_key_width0.720 INCHES MINIMUM AND 0.740 INCHES MAXIMUM IN
material_document_and_classificationMIL-S-7952 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
distance_from_centerline_to_top_of_internal_key1.180 INCHES MINIMUM AND 1.185 INCHES MAXIMUM IN
NSN5310-01-013-9645
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3810005-2 · 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
•
INTERNAL STRAIGHT KEY WIDTH: 0.720 INCHES MINIMUM AND 0.740 INCHES MAXIMUM IN
•
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY: 1.180 INCHES MINIMUM AND 1.185 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7952 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 3.510 INCHES MINIMUM AND 3.530 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.025 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
INTERNAL KEY QUANTITY: 3
TECHNICAL CHARACTERISTICS
INTERNAL STRAIGHT KEY WIDTH0.720 INCHES MINIMUM AND 0.740 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY1.180 INCHES MINIMUM AND 1.185 INCHES MAXIMUM IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7952 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER3.510 INCHES MINIMUM AND 3.530 INCHES MAXIMUM IN
MATERIAL THICKNESS0.025 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
INTERNAL KEY QUANTITY3
HOLE DIAMETER2.940 INCHES MINIMUM AND 2.960 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 3810005-2?
3810005-2 is a WASHER,KEY.
What is the NSN for 3810005-2?
3810005-2 is cataloged in the U.S. Government catalog under NSN 5310-01-013-9645. 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.