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3504-11 ITEM 27 — 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 COMP 1074 OVERALL, hole_diameter: 3.890 INCHES NOMINAL3.890 INCHES NOMINAL IN, overall_height: 0.355 INCHES NOMINAL0.355 INCHES NOMINAL IN, outside_diameter: 4.997 INCHES NOMINAL4.997 INCHES NOMINAL IN, material_thickness: 0.050 INCHES NOMINAL0.050 INCHES NOMINAL IN, material_document_and_classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the Federal Logistics Information System under NSN 5310-01-052-1799, 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
3504-11 ITEM 27
NSN: 5310-01-052-1799
FSC: 5310
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialSTEEL COMP 1074 OVERALL
hole_diameter3.890 INCHES NOMINAL3.890 INCHES NOMINAL IN
overall_height0.355 INCHES NOMINAL0.355 INCHES NOMINAL IN
outside_diameter4.997 INCHES NOMINAL4.997 INCHES NOMINAL IN
material_thickness0.050 INCHES NOMINAL0.050 INCHES NOMINAL IN
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-052-1799
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3504-11 ITEM 27 · 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
•
MATERIAL THICKNESS: 0.050 INCHES NOMINAL0.050 INCHES NOMINAL IN
•
HOLE DIAMETER: 3.890 INCHES NOMINAL3.890 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1074 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 4.997 INCHES NOMINAL4.997 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MATERIAL THICKNESS0.050 INCHES NOMINAL0.050 INCHES NOMINAL IN
HOLE DIAMETER3.890 INCHES NOMINAL3.890 INCHES NOMINAL IN
MATERIALSTEEL COMP 1074 OVERALL
OVERALL HEIGHT0.355 INCHES NOMINAL0.355 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER4.997 INCHES NOMINAL4.997 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
724289InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MU1206CLInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
R130InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
R130-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
202170InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
103725InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3504-11 ITEM 27?
3504-11 ITEM 27 is a WASHER,SPRING TENSION.
What parts can replace 3504-11 ITEM 27?
There are 14 known substitutes for 3504-11 ITEM 27: 724289, MU1206CL, R130 and 11 more. Substitute compatibility should be verified for your specific system.
Is 3504-11 ITEM 27 still available?
3504-11 ITEM 27 is currently cancelled.
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Last verified: September 2026