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1A60481 — Technical Data Sheet

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— · 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,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN, overall_height: 0.095 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN, outside_diameter: 0.812 INCHES NOMINAL IN, surface_treatment: CADMIUM AND CHROMATE OVERALL, material_thickness: 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System under NSN 5310-00-275-6616, 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
1A60481
NSN: 5310-00-275-6616
FSC: 5310
CAGE: 95201 — NAPCO INTERNATIONAL LLC DBA NAPCO INTERNATIONAL INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
overall_height0.095 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
outside_diameter0.812 INCHES NOMINAL IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
material_thickness0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-275-6616
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1A60481 · 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
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
MATERIAL: STEEL OVERALL
•
OUTSIDE DIAMETER: 0.812 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HOLE DIAMETER: 0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MATERIALSTEEL OVERALL
OUTSIDE DIAMETER0.812 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HOLE DIAMETER0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
OVERALL HEIGHT0.095 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
MATERIAL THICKNESS0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
2187398-5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
01901InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
854767InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
55604InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
74096InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
520-0414InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1A60481?
1A60481 is a WASHER,SPRING TENSION.
What parts can replace 1A60481?
There are 8 known substitutes for 1A60481: 2187398-5, 01901, 854767 and 5 more. Substitute compatibility should be verified for your specific system.
Is 1A60481 still available?
1A60481 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: September 2026