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6510-21-152-9118 — WASHER,SHOULDERED AND RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6510-21-152-9118: WASHER,SHOULDERED AND RECESSED.

The WASHER,SHOULDERED AND RECESSED is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 172 OVERALL, recess_angle: 90.0 DEGREES NOMINAL, hole_diameter: 1.1255 INCHES MINIMUM AND 1.1260 INCHES MAXIMUM IN, recess_diameter: 1.1655 INCHES MINIMUM AND 1.1860 INCHES MAXIMUM IN, shoulder_height: 0.180 INCHES NOMINAL IN, outside_diameter: 1.650 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-112-1576, 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
6510-21-152-9118
NSN: 5310-01-112-1576
FSC: 5310 — Nuts and Washers
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY 172 OVERALL
recess_angle90.0 DEGREES NOMINAL
hole_diameter1.1255 INCHES MINIMUM AND 1.1260 INCHES MAXIMUM IN
recess_diameter1.1655 INCHES MINIMUM AND 1.1860 INCHES MAXIMUM IN
shoulder_height0.180 INCHES NOMINAL IN
outside_diameter1.650 INCHES NOMINAL IN
style_designatorSHOULDERED AND RECESSED BOTH SIDES
shoulder_diameter1.3140 INCHES MINIMUM AND 1.3145 INCHES MAXIMUM IN
material_thickness0.058 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
material_document_and_classificationQQ-C-530,TEMPER A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-112-1576
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6510-21-152-9118 · 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
•
SHOULDER HEIGHT: 0.180 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDERED AND RECESSED BOTH SIDES
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-530,TEMPER A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.650 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.058 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 1.3140 INCHES MINIMUM AND 1.3145 INCHES MAXIMUM IN
•
RECESS DIAMETER: 1.1655 INCHES MINIMUM AND 1.1860 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY 172 OVERALL
TECHNICAL CHARACTERISTICS
SHOULDER HEIGHT0.180 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDERED AND RECESSED BOTH SIDES
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-530,TEMPER A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.650 INCHES NOMINAL IN
MATERIAL THICKNESS0.058 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
SHOULDER DIAMETER1.3140 INCHES MINIMUM AND 1.3145 INCHES MAXIMUM IN
RECESS DIAMETER1.1655 INCHES MINIMUM AND 1.1860 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY 172 OVERALL
HOLE DIAMETER1.1255 INCHES MINIMUM AND 1.1260 INCHES MAXIMUM IN
RECESS ANGLE90.0 DEGREES NOMINAL
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

No substitute or cross-reference records for this part.

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 6510-21-152-9118?
6510-21-152-9118 is a WASHER,SHOULDERED AND RECESSED.
What is the NSN for 6510-21-152-9118?
6510-21-152-9118 is cataloged in the U.S. Government catalog under NSN 5310-01-112-1576. 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.