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401345 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

401345: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN, outside_diameter: 0.865 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN, style_designator: FLAT EXTERNAL AND INTERNAL TEETH, surface_treatment: CADMIUM OR ZINC OVERALL, material_thickness: 0.032 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-017-8532, 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
401345
NSN: 5310-00-017-8532
FSC: 5310 — Nuts and Washers
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
outside_diameter0.865 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN
style_designatorFLAT EXTERNAL AND INTERNAL TEETH
surface_treatmentCADMIUM OR ZINC OVERALL
material_thickness0.032 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-633,FS1060 TO FS 1080-CANCELED FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5310-00-017-8532
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 401345 · 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
•
STYLE DESIGNATOR: FLAT EXTERNAL AND INTERNAL TEETH
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633,FS1060 TO FS 1080-CANCELED FED SPEC ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 0.865 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.032 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFLAT EXTERNAL AND INTERNAL TEETH
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633,FS1060 TO FS 1080-CANCELED FED SPEC ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER0.865 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN
MATERIAL THICKNESS0.032 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 7
87472CReference document
Same NSN cross-reference
Reference document — Secondary reference
178532Reference document
Same NSN cross-reference
Reference document — Secondary reference
9-1316Reference document
Same NSN cross-reference
Reference document — Secondary reference
PC178532Reference document
Same NSN cross-reference
Reference document — Secondary reference
N25460JReference document
Same NSN cross-reference
Reference document — Secondary reference
5227Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 401345?
401345 is a WASHER,LOCK.
What parts can replace 401345?
There are 7 known substitutes for 401345: 87472C, 178532, 9-1316 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 401345?
401345 is cataloged in the U.S. Government catalog under NSN 5310-00-017-8532. 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.