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QAP00345 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

QAP00345: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 310 OVERALL, hole_diameter: 0.3155 INCHES MINIMUM AND 0.329 INCHES MAXIMUM IN, outside_diameter: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN, split_key_length: 0.758 INCHES NOMINAL IN, style_designator: KEY, material_thickness: 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-305-7413, 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
QAP00345
NSN: 5310-00-305-7413
FSC: 5310 — Nuts and Washers
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
materialSTEEL COMP 310 OVERALL
hole_diameter0.3155 INCHES MINIMUM AND 0.329 INCHES MAXIMUM IN
outside_diameter0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
split_key_length0.758 INCHES NOMINAL IN
style_designatorKEY
material_thickness0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
external_key_quantity1
external_prebent_key_width0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
angle_between_external_keys116.0 DEGREES MINIMUM AND 120.0 DEGREES MAXIMUM
external_prebent_key_length0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
overall_distance_including_keys0.894 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
material_document_and_classificationAMS 5521 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-305-7413
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: QAP00345 · 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: 0.295 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
•
SPLIT KEY LENGTH: 0.758 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY LENGTH: 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 0.894 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5521 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.295 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
SPLIT KEY LENGTH0.758 INCHES NOMINAL IN
EXTERNAL PREBENT KEY LENGTH0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS0.894 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5521 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
MATERIAL THICKNESS0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY1
EXTERNAL PREBENT KEY WIDTH0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
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 QAP00345?
QAP00345 is a WASHER,KEY.
What is the NSN for QAP00345?
QAP00345 is cataloged in the U.S. Government catalog under NSN 5310-00-305-7413. This indicates validated use in U.S. government and defense supply chains.
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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.