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12286277 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12286277: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1010 OVERALL, hole_diameter: 1.400 INCHES MINIMUM AND 1.405 INCHES MAXIMUM IN, outside_diameter: 1.650 INCHES NOMINAL IN, style_designator: 90 DEGREE LOCKING KEY, material_thickness: 0.022 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN, external_prebent_key_width: 0.155 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-073-7801, 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
12286277
NSN: 5310-01-073-7801
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OVERALL
hole_diameter1.400 INCHES MINIMUM AND 1.405 INCHES MAXIMUM IN
outside_diameter1.650 INCHES NOMINAL IN
style_designator90 DEGREE LOCKING KEY
material_thickness0.022 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
external_prebent_key_width0.155 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN
NSN5310-01-073-7801
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12286277 · 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
•
STYLE DESIGNATOR: 90 DEGREE LOCKING KEY
•
OUTSIDE DIAMETER: 1.650 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.022 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
•
EXTERNAL PREBENT KEY WIDTH: 0.155 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 1010 OVERALL
•
HOLE DIAMETER: 1.400 INCHES MINIMUM AND 1.405 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATOR90 DEGREE LOCKING KEY
OUTSIDE DIAMETER1.650 INCHES NOMINAL IN
MATERIAL THICKNESS0.022 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY WIDTH0.155 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1010 OVERALL
HOLE DIAMETER1.400 INCHES MINIMUM AND 1.405 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 1
3-105-098-02Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 12286277?
12286277 is a WASHER,KEY.
What parts can replace 12286277?
There is 1 known substitute for 12286277: 3-105-098-02. Substitute compatibility should be verified for your specific system.
What is the NSN for 12286277?
12286277 is cataloged in the U.S. Government catalog under NSN 5310-01-073-7801. 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.