National Item Identification Number

01-145-0673

National Stock Number

Item Name

NUT,PLAIN,SQUARE

Federal Supply Class

5310

Description

A nut, flat on top and bottom, having 4 flat sides. For items having a thickness (or height) exceeding two times the width across the flats, use POST, ELECTRICAL-MECHANICAL EQUIPMENT. (When height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Commercial and Government Entity Code (Supplier Data)

---

12793

---

AQUA-CHEM INC
CLEAVER-BROOKS DIV
11950 W LAKE PARK DR
421
MILWAUKEE
WI
53224
414-359-0600

---

Reference Numbers (Part Numbers)

51-160

Required Categories

THREAD SERIES
NOMINAL THREAD SIZE
THREAD QUANTITY PER INCH
THREAD CLASS
THRE

Required Description

UNC
0.531 INCHES
28
2B
RIGHT-HAND
COPPER ALLOY 360 OVERALL
ASTM B16 ASSN S