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Technical Data Sheet
PartsTable / COMPONENT / 8147985
8147985 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,RECESSED is a the manufacturer 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: 0.315 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN, recess_diameter: 0.396 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN, outside_diameter: 0.583 INCHES MINIMUM AND 0.603 INCHES MAXIMUM IN, style_designator: RECESSED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-595-7078, 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
8147985
NSN: 5310-00-595-7078
FSC: 5310
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 1330 OR STEEL COMP 4130 OVERALL
recess_angle89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM
hole_diameter0.315 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN
recess_diameter0.396 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
outside_diameter0.583 INCHES MINIMUM AND 0.603 INCHES MAXIMUM IN
style_designatorRECESSED
surface_treatmentCADMIUM AND CHROMATE OVERALL
material_thickness0.068 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
specification/standard_data80205-NAS143 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-595-7078
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8147985 · 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: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL: STEEL COMP 1330 OR STEEL COMP 4130 OVERALL
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
RECESS ANGLE: 89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM
•
HOLE DIAMETER: 0.315 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN
•
RECESS DIAMETER: 0.396 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIALSTEEL COMP 1330 OR STEEL COMP 4130 OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
RECESS ANGLE89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM
HOLE DIAMETER0.315 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN
RECESS DIAMETER0.396 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.583 INCHES MINIMUM AND 0.603 INCHES MAXIMUM IN
SPECIFICATION/STANDARD DATA80205-NAS143 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
5310PL0150699Interchangeable
interchangeable cross-reference
interchangeable
T4M284-8CInterchangeable
interchangeable cross-reference
interchangeable
5310001499116Interchangeable
interchangeable cross-reference
interchangeable
21140-33Interchangeable
interchangeable cross-reference
interchangeable
126229BInterchangeable
interchangeable cross-reference
interchangeable
MS20002C5Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8147985?
8147985 is a WASHER,RECESSED.
What parts can replace 8147985?
There are 14 known substitutes for 8147985: 5310PL0150699, T4M284-8C, 5310001499116 and 11 more. Substitute compatibility should be verified for your specific system.
Is 8147985 still available?
8147985 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026