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657330 — WASHER,SHOULDERED AND RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

657330: WASHER,SHOULDERED AND RECESSED.

The WASHER,SHOULDERED AND RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, recess_angle: 99.5 DEGREES MINIMUM AND 100.5 DEGREES MAXIMUM, hole_diameter: 0.128 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN, recess_diameter: 0.212 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN, shoulder_height: 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN, outside_diameter: 0.470 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-242-9296, 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
657330
NSN: 5310-00-242-9296
FSC: 5310 — Nuts and Washers
CAGE: 08244 — MOELLER MFG. COMPANY, LLC DIV AIRCRAFT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
recess_angle99.5 DEGREES MINIMUM AND 100.5 DEGREES MAXIMUM
hole_diameter0.128 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN
recess_diameter0.212 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN
shoulder_height0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
outside_diameter0.470 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN
style_designatorSHOULDERED AND RECESSED
shoulder_diameter0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN
material_thickness0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
material_document_and_classificationAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-242-9296
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 657330 · 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: 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SHOULDERED AND RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.470 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN
•
RECESS DIAMETER: 0.212 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SHOULDER HEIGHT0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
STYLE DESIGNATORSHOULDERED AND RECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.470 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN
MATERIAL THICKNESS0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
SHOULDER DIAMETER0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN
RECESS DIAMETER0.212 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
HOLE DIAMETER0.128 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN
RECESS ANGLE99.5 DEGREES MINIMUM AND 100.5 DEGREES MAXIMUM
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 657330?
657330 is a WASHER,SHOULDERED AND RECESSED.
What is the NSN for 657330?
657330 is cataloged in the U.S. Government catalog under NSN 5310-00-242-9296. 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.