PartsTable
Technical Data Sheet
Download PDF

21D5C10C — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

21D5C10C: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, recess_angle: 90.0 DEGREES NOMINAL, hole_diameter: 0.631 INCHES MINIMUM AND 0.643 INCHES MAXIMUM IN, recess_diameter: 0.785 INCHES MAXIMUM IN, outside_diameter: 1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN, style_designator: RECESSED. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-264-3615, 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
21D5C10C
NSN: 5310-01-264-3615
FSC: 5310 — Nuts and Washers
CAGE: 04236 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
recess_angle90.0 DEGREES NOMINAL
hole_diameter0.631 INCHES MINIMUM AND 0.643 INCHES MAXIMUM IN
recess_diameter0.785 INCHES MAXIMUM IN
outside_diameter1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
style_designatorRECESSED
surface_treatmentPASSIVATE OVERALL
material_thickness0.068 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
material_document_and_classificationAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-264-3615
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 21D5C10C · 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
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.068 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
•
RECESS DIAMETER: 0.785 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: IRON ALLOY 660 OVERALL
•
HOLE DIAMETER: 0.631 INCHES MINIMUM AND 0.643 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
MATERIAL THICKNESS0.068 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
RECESS DIAMETER0.785 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALIRON ALLOY 660 OVERALL
HOLE DIAMETER0.631 INCHES MINIMUM AND 0.643 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
No demilitarization required
Ready to buy 21D5C10C?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 21D5C10C?
21D5C10C is a WASHER,RECESSED.
What is the NSN for 21D5C10C?
21D5C10C is cataloged in the U.S. Government catalog under NSN 5310-01-264-3615. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 21D5C10C