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A067551 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A067551: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, hole_diameter: 0.201 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN, material_thickness: 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN, external_straight_key_width: 0.188 INCHES NOMINAL IN, material_document_and_classification: QQ-S-766 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-564-6009, 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
A067551
NSN: 5310-00-564-6009
FSC: 5310 — Nuts and Washers
CAGE: 59501 — UNISON INDUSTRIES LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
hole_diameter0.201 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
material_thickness0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
external_straight_key_width0.188 INCHES NOMINAL IN
material_document_and_classificationQQ-S-766 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-564-6009
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A067551 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL THICKNESS: 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.188 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 302 OVERALL
•
HOLE DIAMETER: 0.201 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
EXTERNAL STRAIGHT KEY WIDTH0.188 INCHES NOMINAL IN
MATERIALSTEEL COMP 302 OVERALL
HOLE DIAMETER0.201 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 3
A67551Reference document
Same NSN cross-reference
Reference document — Secondary reference
10-38555PC20Reference document
Same NSN cross-reference
Reference document — Secondary reference
10-29517Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A067551?
A067551 is a WASHER,KEY.
What parts can replace A067551?
There are 3 known substitutes for A067551: A67551, 10-38555PC20, 10-29517. Substitute compatibility should be verified for your specific system.
What is the NSN for A067551?
A067551 is cataloged in the U.S. Government catalog under NSN 5310-00-564-6009. 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.