PartsTable
Technical Data Sheet

B300-210-3/52 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

B300-210-3/52: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, thickness: 0.031 INCHES NOMINAL IN, hole_diameter: 0.406 INCHES NOMINAL IN, overall_diameter: 0.875 INCHES NOMINAL IN, surface_treatment: NICKEL OVERALL, end_item_identification: 6530-00-926-2151. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-353-7290, 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
B300-210-3/52
NSN: 5310-01-353-7290
FSC: 5310 — Nuts and Washers
CAGE: 33714 — ENVIRONMENTAL TECTONICS CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thickness0.031 INCHES NOMINAL IN
hole_diameter0.406 INCHES NOMINAL IN
overall_diameter0.875 INCHES NOMINAL IN
surface_treatmentNICKEL OVERALL
end_item_identification6530-00-926-2151
purchase_description_identification33714-B300-210-3/52
NSN5310-01-353-7290
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: B300-210-3/52 · 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
•
OVERALL DIAMETER: 0.875 INCHES NOMINAL IN
•
PURCHASE DESCRIPTION IDENTIFICATION: 33714-B300-210-3/52
•
SURFACE TREATMENT: NICKEL OVERALL
•
MATERIAL: COPPER ALLOY OVERALL
•
HOLE DIAMETER: 0.406 INCHES NOMINAL IN
•
THICKNESS: 0.031 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.875 INCHES NOMINAL IN
PURCHASE DESCRIPTION IDENTIFICATION33714-B300-210-3/52
SURFACE TREATMENTNICKEL OVERALL
END ITEM IDENTIFICATION6530-00-926-2151
MATERIALCOPPER ALLOY OVERALL
HOLE DIAMETER0.406 INCHES NOMINAL IN
THICKNESS0.031 INCHES NOMINAL 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

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 B300-210-3/52?
B300-210-3/52 is a WASHER,FLAT.
What is the NSN for B300-210-3/52?
B300-210-3/52 is cataloged in the U.S. Government catalog under NSN 5310-01-353-7290. 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.