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538174 — WASHER,SLOTTED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

538174: WASHER,SLOTTED.

The WASHER,SLOTTED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.395 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN, hardness_rating: 75.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 84.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM, outside_diameter: 0.615 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN, style_designator: SLOTTED, material_thickness: 0.050 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-285-8833, 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
538174
NSN: 5310-00-285-8833
NIINs: 002858833, 008547076
FSC: 5310 — Nuts and Washers
CAGE: 6K4C8 — GOODRICH CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.395 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
hardness_rating75.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 84.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
outside_diameter0.615 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN
style_designatorSLOTTED
material_thickness0.050 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
material_document_and_classificationAMS5504 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-285-8833
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 538174 · 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
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SURFACE FINISH: 63.0 MICROINCHES BOTTOM
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 1,CLASS1 OR 2 OR 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
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OVERALL DIAMETER: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
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MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6350 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-S-685-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MINIMUM TENSILE STRENGTH: 125000 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 1,CLASS1 OR 2 OR 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6350 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-S-685-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTCADMIUM OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH LBS
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 4130 OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
10398526Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 538174?
538174 is a WASHER,SLOTTED.
What parts can replace 538174?
There is 1 known substitute for 538174: 10398526. Substitute compatibility should be verified for your specific system.
What is the NSN for 538174?
538174 is cataloged in the U.S. Government catalog under NSN 5310-00-285-8833. 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.