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12298666 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12298666: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.530 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN, overall_width: 1.120 INCHES NOMINAL IN, style_designator: KEY, material_thickness: 0.089 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN, external_prebent_key_width: 1.120 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-136-7645, 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
12298666
NSN: 5310-01-136-7645
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.530 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN
overall_width1.120 INCHES NOMINAL IN
style_designatorKEY
material_thickness0.089 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
external_prebent_key_width1.120 INCHES NOMINAL IN
external_prebent_key_length0.440 INCHES NOMINAL IN
overall_distance_including_keys1.249 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN
distance_from_centerline_to_inside_of_prebent_key0.630 INCHES NOMINAL IN
NSN5310-01-136-7645
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12298666 · 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
•
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY: 0.630 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY LENGTH: 0.440 INCHES NOMINAL IN
•
OVERALL DISTANCE INCLUDING KEYS: 1.249 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL THICKNESS: 0.089 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
•
EXTERNAL PREBENT KEY WIDTH: 1.120 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.630 INCHES NOMINAL IN
EXTERNAL PREBENT KEY LENGTH0.440 INCHES NOMINAL IN
OVERALL DISTANCE INCLUDING KEYS1.249 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN
STYLE DESIGNATORKEY
OVERALL WIDTH1.120 INCHES NOMINAL IN
MATERIAL THICKNESS0.089 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY WIDTH1.120 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
HOLE DIAMETER0.530 INCHES MINIMUM AND 0.577 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 12298666?
12298666 is a WASHER,KEY.
What is the NSN for 12298666?
12298666 is cataloged in the U.S. Government catalog under NSN 5310-01-136-7645. 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.