PartsTable TECHNICAL DATA SHEET

NSN 4820-01-278-5550Government record, cited

Pressure Plate, Valve4820-01-278-5550

NSN 4820-01-278-5550 · NIIN 012785550 · Part number 505A-80BR

Zurn Industries Inc Wilkins Regulator Co Div · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 28353

Government record, cited

NSN 4820-01-278-5550 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-278-5550. Manufacturer of record part number: 505A-80BR.

Also searched as 4820-01-278-5550 · 4820012785550 · NIIN 012785550 · 01-278-5550 · FSC 4820 Valves, Nonpowered · CAGE 28353 · 505A-80BR · 505-80 BRASS · 505-80BR

Nearby stock numbers ← 4820-01-278-5545 · 4820-01-278-5551 →

4820-01-278-5550 — Valves, Nonpowered

Features

Pressure Plate,valve — FSC 4820
General Characteristics Item Description: MATERIAL,BRASS; USED ON VALVE
1 manufacturer part number on file
Manufacturer of record: Zurn Industries Inc Wilkins Regulator Co Div

Identification

NSN: 4820-01-278-5550
NIIN: 012785550
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 505A-80BR
Manufacturer: Zurn Industries Inc Wilkins Regulator Co Div

General Description

The Pressure Plate,valve, cataloged under National Stock Number 4820-01-278-5550, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Zurn Industries Inc Wilkins Regulator Co Div. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-278-5550
Primary Part Number	505A-80BR
Item Name	Pressure Plate,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Zurn Industries Inc Wilkins Regulator Co Div
Status	ACTIVE
General Characteristics Item Description	MATERIAL,BRASS; USED ON VALVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
505A-80BR PRIMARY	Zurn Industries Inc Wilkins Regulator Co Div (USA)

Reference documents

Reference	Meaning
505-80 BRASS	5/9 Secondary reference Zurn Industries Inc Wilkins Regulator Co Div
505-80BR	5/9 Secondary reference Zurn Industries Inc Wilkins Regulator Co Div

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

4820-00-001-0020

4820-00-001-0020 · Item name not on file

4820-00-001-0021

4820-00-001-0021 · Item name not on file

4820-00-001-0032

4820-00-001-0032 · Item name not on file

4820-00-001-0037

VALVE,SAFETY RELIEF

4820-00-001-0042

4820-00-001-0042 · Item name not on file

4820-00-001-1230

4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-278-5550?

NSN 4820-01-278-5550 is a Pressure Plate,valve, manufactured by Zurn Industries Inc Wilkins Regulator Co Div, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-278-5550?

NSN 4820-01-278-5550 has 1 manufacturer part number on file: 505A-80BR (Zurn Industries Inc Wilkins Regulator Co Div).

What are the specifications of 505A-80BR?

Key specifications for 505A-80BR: General Characteristics Item Description: MATERIAL,BRASS; USED ON VALVE; End Item Identification: VALVE; WILKINS REGULATOR CO; MODEL 600. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-278-5550 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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