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655366 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

655366: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, hole_diameter: 0.547 INCHES MINIMUM AND 0.547 INCHES MINIMUM AND 0.578 INCHES MAXIMUM0.578 INCHES MAXIMUM IN, outside_diameter: 1.234 INCHES MINIMUM AND 1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM1.266 INCHES MAXIMUM IN, style_designator: KEYKEY, material_thickness: 0.047 INCHES MINIMUM AND 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM0.078 INCHES MAXIMUM IN, external_prebent_key_width: 0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-271-3189, 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
655366
NSN: 5310-00-271-3189
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
hole_diameter0.547 INCHES MINIMUM AND 0.547 INCHES MINIMUM AND 0.578 INCHES MAXIMUM0.578 INCHES MAXIMUM IN
outside_diameter1.234 INCHES MINIMUM AND 1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM1.266 INCHES MAXIMUM IN
style_designatorKEYKEY
material_thickness0.047 INCHES MINIMUM AND 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM0.078 INCHES MAXIMUM IN
external_prebent_key_width0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
external_prebent_key_length0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
overall_distance_including_keys1.376 INCHES NOMINAL1.376 INCHES NOMINAL IN
material_document_and_classificationQQ-S-766,CLASS 304,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALLQQ-S-766,CLASS 304,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
distance_from_centerline_to_inside_of_prebent_key0.672 INCHES MINIMUM AND 0.672 INCHES MINIMUM AND 0.703 INCHES MAXIMUM0.703 INCHES MAXIMUM IN
NSN5310-00-271-3189
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 655366 · 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: 0.672 INCHES MINIMUM AND 0.672 INCHES MINIMUM AND 0.703 INCHES MAXIMUM0.703 INCHES MAXIMUM IN
•
EXTERNAL PREBENT KEY LENGTH: 0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 1.376 INCHES NOMINAL1.376 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEYKEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766,CLASS 304,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALLQQ-S-766,CLASS 304,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.234 INCHES MINIMUM AND 1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM1.266 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.047 INCHES MINIMUM AND 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM0.078 INCHES MAXIMUM IN
•
EXTERNAL PREBENT KEY WIDTH: 0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.672 INCHES MINIMUM AND 0.672 INCHES MINIMUM AND 0.703 INCHES MAXIMUM0.703 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY LENGTH0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS1.376 INCHES NOMINAL1.376 INCHES NOMINAL IN
STYLE DESIGNATORKEYKEY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766,CLASS 304,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALLQQ-S-766,CLASS 304,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.234 INCHES MINIMUM AND 1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM1.266 INCHES MAXIMUM IN
MATERIAL THICKNESS0.047 INCHES MINIMUM AND 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM0.078 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY WIDTH0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
MATERIALSTEEL COMP 304 OVERALL
HOLE DIAMETER0.547 INCHES MINIMUM AND 0.547 INCHES MINIMUM AND 0.578 INCHES MAXIMUM0.578 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 655366?
655366 is a WASHER,KEY.
What is the NSN for 655366?
655366 is cataloged in the U.S. Government catalog under NSN 5310-00-271-3189. 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.