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Technical Data Sheet
PartsTable / COMPONENT / 13S55
13S55 ✓ 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 COVER,ELECTRICAL CONNECTOR is a the manufacturer industrial component. Key specifications include first_end_style: SQUARE, surface_treatment: CADMIUM OVERALL, pin_overall_length: 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN, pin_overall_diameter: 0.1340 INCHES MINIMUM AND 0.1360 INCHES MAXIMUM IN, material_document_and_classification: QQ-B-626 FED SPEC ALL MATERIAL RESPONSES OVERALL, second_end_relationship_with_first_end: IDENTICAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-148-0792, 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
13S55
NSN: 5315-00-148-0792
FSC: 5315
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
first_end_styleSQUARE
surface_treatmentCADMIUM OVERALL
pin_overall_length0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
pin_overall_diameter0.1340 INCHES MINIMUM AND 0.1360 INCHES MAXIMUM IN
material_document_and_classificationQQ-B-626 FED SPEC ALL MATERIAL RESPONSES OVERALL
second_end_relationship_with_first_endIDENTICAL
surface_treatment_document_and_classificationQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-00-148-0792
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 13S55 · 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 OVERALL
•
MATERIAL: COPPER ALLOY 230 AND COPPER ALLOY 240 OR COPPER ALLOY 260 OR COPPER ALLOY 268 OR COPPER ALLOY 342 OR COPPER ALLOY 360 OR COPPER ALLOY 377 OR COPPER ALLOY 262 OR COPPER ALLOY 270 OR COPPER ALLOY 353 OR COPPER ALLOY 272 OR COPPER ALLOY 274 OR COPPER ALLOY 280 OR COPPER ALLOY 330 OR COPPER ALLOY 331 OR COPPER ALLOY 332 OR COPPER ALLOY 340 OR COPPER ALLOY 370 OR COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 465 OR COPPER ALLOY 466 OR COPPER ALLOY 467 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL
•
PIN OVERALL LENGTH: 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
FIRST END STYLE: SQUARE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
PIN OVERALL DIAMETER: 0.1340 INCHES MINIMUM AND 0.1360 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM OVERALL
MATERIALCOPPER ALLOY 230 AND COPPER ALLOY 240 OR COPPER ALLOY 260 OR COPPER ALLOY 268 OR COPPER ALLOY 342 OR COPPER ALLOY 360 OR COPPER ALLOY 377 OR COPPER ALLOY 262 OR COPPER ALLOY 270 OR COPPER ALLOY 353 OR COPPER ALLOY 272 OR COPPER ALLOY 274 OR COPPER ALLOY 280 OR COPPER ALLOY 330 OR COPPER ALLOY 331 OR COPPER ALLOY 332 OR COPPER ALLOY 340 OR COPPER ALLOY 370 OR COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 465 OR COPPER ALLOY 466 OR COPPER ALLOY 467 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL
PIN OVERALL LENGTH0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
FIRST END STYLESQUARE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626 FED SPEC ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
PIN OVERALL DIAMETER0.1340 INCHES MINIMUM AND 0.1360 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
7049Interchangeable
interchangeable cross-reference
interchangeable
13S55Interchangeable
interchangeable cross-reference
interchangeable
61963Interchangeable
interchangeable cross-reference
interchangeable
5315H34-008-3Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 13S55?
13S55 is a COVER,ELECTRICAL CONNECTOR.
What parts can replace 13S55?
There are 4 known substitutes for 13S55: 7049, 13S55, 61963 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 13S55?
13S55 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-148-0792. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026