National Item Identification Number

01-475-7422
014757422
4820-01-475-7422
4820-01-475-7422

National Stock Number

Item Name

DISK,RUPTURABLE

Federal Supply Class

4820

Description

A thin, circular, metallic or nonmetallic item with a flat or prebulged cross-sectional shape, designed to rupture at a predetermined pressure to prevent damage to hydraulic or pneumatic systems, or the like. It may include multiple pieces, such as a retainer ring, disk and vacuum support. It can be used independently or as a component part of a HEAD, SAFETY, PRESSURE RELIEF. For items furnished with a holder, see HEAD AND DISK, SAFETY, PRESSURE RELIEF. For items without a rupture pressure rating, see DISK, SOLID, PLAIN. Excludes DIAPHRAGM, VALVE, FLAT; DIAPHRAGM, VALVE, SPECIAL SHAPED; DISK, VALVE; and INSULATOR, DISK.

Commercial and Government Entity Code (Supplier Data)

---

18876

---

---

18876

---

---

67289

---

PRESSURE SPECIALTIES INC.
1701 SW GREEN SIDING ROAD
ROSEBURG
OR
97470
541-784-2390

---

Reference Numbers (Part Numbers)

11450099
11450099-3
91P166

Required Categories

DISK MATERIAL
CROSS-SECTIONAL SHAPE
DISK SIZE
SPECIAL FEATURES
SPECIFICATION

Required Description

STEEL COMP 304
FLAT
1.437 INCHES
NHA 10250727, SLOT ORIENTATION IS OPTIONAL;