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11686758 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

11686758: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1020 OVERALL, recess_depth: 0.0195 INCHES MINIMUM AND 0.0205 INCHES MAXIMUM IN, hole_diameter: 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN, recess_diameter: 0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN, outside_diameter: 0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN, style_designator: RECESSED BOTH SIDES. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-937-2248, 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
11686758
NSN: 5310-00-937-2248
FSC: 5310 — Nuts and Washers
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OVERALL
recess_depth0.0195 INCHES MINIMUM AND 0.0205 INCHES MAXIMUM IN
hole_diameter0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
recess_diameter0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
outside_diameter0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN
style_designatorRECESSED BOTH SIDES
surface_treatmentPHOSPHATE OR ZINC OVERALL
material_thickness0.078 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
bottom_recess_angle90.0 DEGREES NOMINAL
bottom_recess_diameter0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
NSN5310-00-937-2248
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 11686758 · 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
•
BOTTOM RECESS DIAMETER: 0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: RECESSED BOTH SIDES
•
OUTSIDE DIAMETER: 0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN
•
RECESS DEPTH: 0.0195 INCHES MINIMUM AND 0.0205 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.078 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
•
BOTTOM RECESS ANGLE: 90.0 DEGREES NOMINAL
•
RECESS DIAMETER: 0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PHOSPHATE OR ZINC OVERALL
TECHNICAL CHARACTERISTICS
BOTTOM RECESS DIAMETER0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
STYLE DESIGNATORRECESSED BOTH SIDES
OUTSIDE DIAMETER0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN
RECESS DEPTH0.0195 INCHES MINIMUM AND 0.0205 INCHES MAXIMUM IN
MATERIAL THICKNESS0.078 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
BOTTOM RECESS ANGLE90.0 DEGREES NOMINAL
RECESS DIAMETER0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
SURFACE TREATMENTPHOSPHATE OR ZINC OVERALL
MATERIALSTEEL COMP 1020 OVERALL
HOLE DIAMETER0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM 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
F8199-000177Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 11686758?
11686758 is a WASHER,RECESSED.
What parts can replace 11686758?
There is 1 known substitute for 11686758: F8199-000177. Substitute compatibility should be verified for your specific system.
What is the NSN for 11686758?
11686758 is cataloged in the U.S. Government catalog under NSN 5310-00-937-2248. 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.