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10246270-1 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10246270-1: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 3.177 INCHES MINIMUM AND 3.207 INCHES MAXIMUM IN, outside_diameter: 3.844 INCHES MINIMUM AND 3.874 INCHES MAXIMUM IN, style_designator: KEY, surface_treatment: CADMIUM OVERALL, material_thickness: 0.067 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-019-1556, 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
10246270-1
NSN: 5310-01-019-1556
FSC: 5310 — Nuts and Washers
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter3.177 INCHES MINIMUM AND 3.207 INCHES MAXIMUM IN
outside_diameter3.844 INCHES MINIMUM AND 3.874 INCHES MAXIMUM IN
style_designatorKEY
surface_treatmentCADMIUM OVERALL
material_thickness0.067 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN
external_key_quantity19
external_prebent_key_width0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
internal_prebent_key_width0.313 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN
internal_prebent_key_length0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
criticality_code_justificationSFTT
overall_distance_including_keys4.375 INCHES MAXIMUM IN
NSN5310-01-019-1556
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10246270-1 · 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,TYPE II,CLASS C FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
INTERNAL PREBENT KEY WIDTH: 0.313 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 4.375 INCHES MAXIMUM IN
•
CRITICALITY CODE JUSTIFICATION: SFTT
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66,COMP 1010 TO 1035 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 3.844 INCHES MINIMUM AND 3.874 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.067 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE II,CLASS C FED SPEC SINGLE TREATMENT RESPONSE OVERALL
INTERNAL PREBENT KEY WIDTH0.313 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS4.375 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATIONSFTT
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66,COMP 1010 TO 1035 FED STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER3.844 INCHES MINIMUM AND 3.874 INCHES MAXIMUM IN
MATERIAL THICKNESS0.067 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY19
INTERNAL PREBENT KEY LENGTH0.188 INCHES MINIMUM AND 0.250 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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10246270-1?
10246270-1 is a WASHER,KEY.
What is the NSN for 10246270-1?
10246270-1 is cataloged in the U.S. Government catalog under NSN 5310-01-019-1556. 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.