Valve, Bypass4820-01-646-5576

NSN 4820-01-646-5576 · NIIN 016465576 · Part number 421

Red-White Valve Corp. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 55018

Government record, cited

NSN 4820-01-646-5576 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-646-5576. Manufacturer of record part number: 421.

Also searched as 4820-01-646-5576 · 4820016465576 · NIIN 016465576 · 01-646-5576 · FSC 4820 Valves, Nonpowered · CAGE 55018 · 421

Nearby stock numbers ← 4820-01-646-5562 Parts Kit, Ball Valve · 4820-01-646-5661 Valve, Regulating, Fluid Pressure →

4820-01-646-5576 — Valves, Nonpowered

Features

Valve,bypass — FSC 4820
Material: IRON
1 manufacturer part number on file
Manufacturer of record: Red-White Valve Corp.

Identification

NSN: 4820-01-646-5576
NIIN: 016465576
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 421
Manufacturer: Red-White Valve Corp.

General Description

The Valve,bypass, cataloged under National Stock Number 4820-01-646-5576, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Red-White Valve Corp.. 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-646-5576
Primary Part Number	421
Item Name	Valve,bypass
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Red-White Valve Corp.
Status	ACTIVE
Material	IRON

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
421 PRIMARY	Red-White Valve Corp. (USA)

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 4820-01-646-5576?

NSN 4820-01-646-5576 is a Valve,bypass, manufactured by Red-White Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-646-5576?

NSN 4820-01-646-5576 has 1 manufacturer part number on file: 421 (Red-White Valve Corp.).

What are the specifications of 421?

Key specifications for 421: Special Features: WEIGHT: 3.25 LBS; FEATURE: IBBM, OS&Y, RISING STEM, SOLID DISC, AND MSS-SP-70; CAGE 55018, RED-WHITE VALVE CORP., 20600 REGENCY LN, LAKE FOREST CA, 949-859-1010 IS THE OEM; METRIC DIMENSIONS: 63.5MM LBS; Part Name Assigned by Controlling Agency: VALVE,BYPASS, BLACK IRON, 2-1/2 INCHES 12 LB LBS; Material: IRON. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-646-5576 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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