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S913-18CX — NUT,RING SEGMENT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

S913-18CX: NUT,RING SEGMENT.

The NUT,RING SEGMENT is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-00-591-4615, 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
S913-18CX
NSN: 5310-00-591-4615
FSC: 5310 — Nuts and Washers
CAGE: 19904 — STROCO MANUFACTURING, INC. DBA STROCO MANUFACTURING INC (USA)
SPECIFICATIONS
Part NumberS913-18CX
NSN5310-00-591-4615
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: S913-18CX · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: RING SEGMENT,ALUMINUM ALLOY QQ-A-250/5 TEMPER T3,1.333 IN. MIN 1.363 IN. MAX LENGTH,0.286 IN. MIN 0.301 IN. MAX WIDTH,0.032 IN. THICK,0.610 IN. MIN 0.618 IN. MAX RADIUS ON ONE SIDE,INCLUDES 2 KAYNAR MK7200-06 STAKE NUTS OR EQUIVALENT LOCATED 1.155 IN. MIN 1.157 IN. MAX CENTER TO CENTER ON RING SEGMENT IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONRING SEGMENT,ALUMINUM ALLOY QQ-A-250/5 TEMPER T3,1.333 IN. MIN 1.363 IN. MAX LENGTH,0.286 IN. MIN 0.301 IN. MAX WIDTH,0.032 IN. THICK,0.610 IN. MIN 0.618 IN. MAX RADIUS ON ONE SIDE,INCLUDES 2 KAYNAR MK7200-06 STAKE NUTS OR EQUIVALENT LOCATED 1.155 IN. MIN 1.157 IN. MAX CENTER TO CENTER ON RING SEGMENT IN
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 1
4250019-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S913-18CX?
S913-18CX is a NUT,RING SEGMENT.
What parts can replace S913-18CX?
There is 1 known substitute for S913-18CX: 4250019-6. Substitute compatibility should be verified for your specific system.
What is the NSN for S913-18CX?
S913-18CX is cataloged in the U.S. Government catalog under NSN 5310-00-591-4615. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.