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1504600 — WASHER,RECESSED

✓ Government record, cited
3M · NUT WASHER
PRODUCT OVERVIEW

1504600: WASHER,RECESSED.

The WASHER,RECESSED is a 3M industrial component. Key specifications include material: STEEL COMP 1330 OR STEEL COMP 4130 OVERALL, recess_angle: 89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM, hole_diameter: 1.260 INCHES MINIMUM AND 1.275 INCHES MAXIMUM IN, recess_diameter: 1.427 INCHES MINIMUM AND 1.447 INCHES MAXIMUM IN, outside_diameter: 2.115 INCHES MINIMUM AND 2.135 INCHES MAXIMUM IN, special_features: HEAT TREATMENT PER MIL-H-6875. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-149-9123, 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
1504600
NSN: 5310-00-149-9123
FSC: 5310 — Nuts and Washers
CAGE: 45152 — OSHKOSH CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 1330 OR STEEL COMP 4130 OVERALL
recess_angle89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM
hole_diameter1.260 INCHES MINIMUM AND 1.275 INCHES MAXIMUM IN
recess_diameter1.427 INCHES MINIMUM AND 1.447 INCHES MAXIMUM IN
outside_diameter2.115 INCHES MINIMUM AND 2.135 INCHES MAXIMUM IN
special_featuresHEAT TREATMENT PER MIL-H-6875
style_designatorRECESSED
surface_treatmentCADMIUM OVERALL
material_thickness0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
minimum_tensile_strength125 POUNDS PER SQUARE INCH LBS
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-149-9123
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1504600 · 3M ⚠ 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 2.115 INCHES MINIMUM AND 2.135 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
•
RECESS DIAMETER: 1.427 INCHES MINIMUM AND 1.447 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER2.115 INCHES MINIMUM AND 2.135 INCHES MAXIMUM IN
MATERIAL THICKNESS0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
RECESS DIAMETER1.427 INCHES MINIMUM AND 1.447 INCHES MAXIMUM IN
SPECIAL FEATURESHEAT TREATMENT PER MIL-H-6875
SURFACE TREATMENTCADMIUM OVERALL
MINIMUM TENSILE STRENGTH125 POUNDS PER SQUARE INCH LBS
MATERIALSTEEL COMP 1330 OR STEEL COMP 4130 OVERALL
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 3
MS20002C20Reference document
Same NSN cross-reference
Reference document — Secondary reference
NAS143-20CReference document
Same NSN cross-reference
Reference document — Secondary reference
10335463Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1504600?
1504600 is a WASHER,RECESSED manufactured by 3M.
What parts can replace 1504600?
There are 3 known substitutes for 1504600: MS20002C20, NAS143-20C, 10335463. Substitute compatibility should be verified for your specific system.
What is the NSN for 1504600?
1504600 is cataloged in the U.S. Government catalog under NSN 5310-00-149-9123. 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.