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160A552H01 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

160A552H01: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, hole_diameter: 0.391 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN, outside_diameter: 0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN, special_features: NAVY IRPOD REQUIREMENTS WERE REMOVED FROM THIS NSN ON 08/30/2022., style_designator: KEY, material_thickness: 0.025 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-005-5756, 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
160A552H01
NSN: 5310-00-005-5756
FSC: 5310 — Nuts and Washers
CAGE: 04808 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV CURTISS-WRIGHT EMD (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
hole_diameter0.391 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
outside_diameter0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN
special_featuresNAVY IRPOD REQUIREMENTS WERE REMOVED FROM THIS NSN ON 08/30/2022.
style_designatorKEY
material_thickness0.025 INCHES NOMINAL IN
peening_key_length0.196 INCHES NOMINAL IN
special_test_featuresSPECIAL QUALITY CONTROL TESTING
external_straight_key_width0.187 INCHES NOMINAL IN
external_straight_key_length0.187 INCHES NOMINAL IN
overall_distance_including_keys0.869 INCHES NOMINAL IN
material_document_and_classificationQQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-005-5756
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 160A552H01 · 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
•
EXTERNAL STRAIGHT KEY LENGTH: 0.187 INCHES NOMINAL IN
•
SPECIAL TEST FEATURES: SPECIAL QUALITY CONTROL TESTING
•
OVERALL DISTANCE INCLUDING KEYS: 0.869 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN
•
PEENING KEY LENGTH: 0.196 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.025 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
EXTERNAL STRAIGHT KEY LENGTH0.187 INCHES NOMINAL IN
SPECIAL TEST FEATURESSPECIAL QUALITY CONTROL TESTING
OVERALL DISTANCE INCLUDING KEYS0.869 INCHES NOMINAL IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN
PEENING KEY LENGTH0.196 INCHES NOMINAL IN
MATERIAL THICKNESS0.025 INCHES NOMINAL IN
EXTERNAL STRAIGHT KEY WIDTH0.187 INCHES NOMINAL IN
SPECIAL FEATURESNAVY IRPOD REQUIREMENTS WERE REMOVED FROM THIS NSN ON 08/30/2022.
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 160A552H01?
160A552H01 is a WASHER,KEY.
What is the NSN for 160A552H01?
160A552H01 is cataloged in the U.S. Government catalog under NSN 5310-00-005-5756. 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.