7 CFR § 51.2952 - Size specifications.

---
identifier: "/us/cfr/t7/s51.2952"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "7 CFR § 51.2952 - Size specifications."
title_number: 7
title_name: "Agriculture"
section_number: "51.2952"
section_name: "Size specifications."
chapter_name: "AGRICULTURAL MARKETING SERVICE (STANDARDS, INSPECTIONS, MARKETING PRACTICES), DEPARTMENT OF AGRICULTURE"
subchapter_number: "C"
subchapter_name: "REQUIREMENTS AND STANDARDS UNDER THE AGRICULTURAL MARKETING ACT OF 1946 AND THE EGG PRODUCTS INSPECTION ACT"
part_number: "51"
part_name: "FRESH FRUITS, VEGETABLES, AND OTHER PRODUCTS (INSPECTION, CERTIFICATION, AND STANDARDS)"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "7 U.S.C. 1621-1627."
cfr_part: "51"
---


# 51.2952 Size specifications.

Size shall be specified in accordance with the facts in terms of one of the following classifications:

(a) *Mammoth size.* Mammoth size means walnuts of which not over 12 percent, by count, pass through a round opening 
96/64 inches in diameter;

(b) *Jumbo size.* Jumbo size means walnuts of which not over 12 percent, by count, pass through a round opening 
80/64 inches in diameter;

(c) *Large size.* Large size means walnuts of which not over 12 percent, by count, pass through a round opening 
77/64 inches in diameter; except that for walnuts of the Eureka variety and type, such limiting dimension as to diameter shall be 
76/64 inches;

(d) *Medium size.* Medium size means walnuts of which at least 88 percent, by count, pass through a round opening 
77/64 inches in diameter, and of which not over 12 percent, by count, pass through a round opening 
73/64 inches in diameter;

(e) *Standard size.* Standard size means walnuts of which not over 12 percent, by count, pass through a round opening 
73/64 inches in diameter;

(f) *Baby size.* Baby size means walnuts of which at least 88 percent, by count, pass through a round opening 
74/64 inches in diameter, and of which not over 10 percent, by count, pass through a round opening 
60/64 inch in diameter; and,

(g) *Minimum diameter, or minimum and maximum diameter.* In lieu of one of the foregoing classifications, size of walnuts may be specified in terms of minimum diameter, or minimum and maximum diameter: *Provided,* That not more than 12 percent, by count, pass through a round hole of the specified minimum diameter, and at least 88 percent, by count, pass through a round hole of any specified maximum diameter.