Flange, Valve4820-00-003-5557

NSN 4820-00-003-5557 · NIIN 000035557

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-00-003-5557 · 4820000035557 · NIIN 000035557 · 00-003-5557 · FSC 4820 Valves, Nonpowered

Nearby stock numbers ← 4820-00-003-5304 · 4820-00-003-5558 Locknut, Valve →

4820-00-003-5557 — Valves, Nonpowered

Features

Flange,valve — FSC 4820
General Characteristics Item Description: ALUMINUM ALLOY,HARD RED ANODIZED FINISH,2.375 IN. SQUARE,0.281 IN. THK,PLAIN FACE,4 MTG HOLES 0.266 IN. DIA,SPACED ON 1.812 IN. MTG CENTERS,1.312 IN. DIA HOLE THROUGH,2.017 IN. O/A LG IN

Identification

NSN: 4820-00-003-5557
NIIN: 000035557
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Flange,valve, cataloged under National Stock Number 4820-00-003-5557, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-00-003-5557
Item Name	Flange,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
General Characteristics Item Description	ALUMINUM ALLOY,HARD RED ANODIZED FINISH,2.375 IN. SQUARE,0.281 IN. THK,PLAIN FACE,4 MTG HOLES 0.266 IN. DIA,SPACED ON 1.812 IN. MTG CENTERS,1.312 IN. DIA HOLE THROUGH,2.017 IN. O/A LG IN

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

⇄ Related Items 1

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

5330-00-154-841861424PC21 POSSIBLE MATCH

SEAL,PLAIN ENCASED

Possible match (shared part number)Lake Shore Systems, Inc.

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
55-0412	3/2 Design control — primary reference U.S. Government activity

Related Parts

5330-00-154-8418POSSIBLE MATCH

SEAL,PLAIN ENCASED

61424PC21

Frequently Asked Questions

What is NSN 4820-00-003-5557?

NSN 4820-00-003-5557 is a Flange,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-00-003-5557?

1 possible match (shared part number, not a government interchangeability claim): 5330-00-154-8418. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-00-003-5557?

Key specifications for 4820-00-003-5557: General Characteristics Item Description: ALUMINUM ALLOY,HARD RED ANODIZED FINISH,2.375 IN. SQUARE,0.281 IN. THK,PLAIN FACE,4 MTG HOLES 0.266 IN. DIA,SPACED ON 1.812 IN. MTG CENTERS,1.312 IN. DIA HOLE THROUGH,2.017 IN. O/A LG IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-00-003-5557 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.

PartsTable Design LLC · partstable.com