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12545528 — WASHER,SHOULDERED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12545528: WASHER,SHOULDERED.

The WASHER,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, recess_depth: 0.15 INCHES MINIMUM AND 0.17 INCHES MAXIMUM IN, hole_diameter: 0.455 INCHES MINIMUM AND 0.465 INCHES MAXIMUM IN, overall_height: 0.41 INCHES MINIMUM AND 0.43 INCHES MAXIMUM IN, hardness_rating: 38.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM, recess_diameter: 0.54 INCHES MINIMUM AND 0.56 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-618-5811, 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
12545528
NSN: 5310-01-618-5811
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
recess_depth0.15 INCHES MINIMUM AND 0.17 INCHES MAXIMUM IN
hole_diameter0.455 INCHES MINIMUM AND 0.465 INCHES MAXIMUM IN
overall_height0.41 INCHES MINIMUM AND 0.43 INCHES MAXIMUM IN
hardness_rating38.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
recess_diameter0.54 INCHES MINIMUM AND 0.56 INCHES MAXIMUM IN
shoulder_height0.20 INCHES MINIMUM AND 0.22 INCHES MAXIMUM IN
outside_diameter0.97 INCHES MINIMUM AND 1.03 INCHES MAXIMUM IN
style_designatorSHOULDERED AND RECESSED
shoulder_diameter0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
end_item_identification2350013693489
material_document_and_classificationASTMA564 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-618-5811
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12545528 · 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
•
SHOULDER HEIGHT: 0.20 INCHES MINIMUM AND 0.22 INCHES MAXIMUM IN
•
HARDNESS RATING: 38.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: SHOULDERED AND RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTMA564 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.97 INCHES MINIMUM AND 1.03 INCHES MAXIMUM IN
•
RECESS DEPTH: 0.15 INCHES MINIMUM AND 0.17 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.41 INCHES MINIMUM AND 0.43 INCHES MAXIMUM IN
SHOULDER HEIGHT0.20 INCHES MINIMUM AND 0.22 INCHES MAXIMUM IN
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSHOULDERED AND RECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONASTMA564 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.97 INCHES MINIMUM AND 1.03 INCHES MAXIMUM IN
RECESS DEPTH0.15 INCHES MINIMUM AND 0.17 INCHES MAXIMUM IN
SHOULDER DIAMETER0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
RECESS DIAMETER0.54 INCHES MINIMUM AND 0.56 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYDETENT WASHER
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12545528?
12545528 is a WASHER,SHOULDERED.
What is the NSN for 12545528?
12545528 is cataloged in the U.S. Government catalog under NSN 5310-01-618-5811. 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.