PartsTable TECHNICAL DATA SHEET

NSN 4820-01-421-2581Government record, cited

Ball, Valve, Ported4820-01-421-2581

NSN 4820-01-421-2581 · NIIN 014212581

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-421-2581 · 4820014212581 · NIIN 014212581 · 01-421-2581 · FSC 4820 Valves, Nonpowered · SPM-34-2 · SPB-34-F152/B7 ITEM 2 · SPB-34-F152/B7

Nearby stock numbers ← 4820-01-421-2580 · 4820-01-421-2582 Valve, Regulating, Fluid Pressure →

4820-01-421-2581 — Valves, Nonpowered

Features

Ball,valve,ported — FSC 4820

Identification

NSN: 4820-01-421-2581
NIIN: 014212581
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Ball,valve,ported, cataloged under National Stock Number 4820-01-421-2581, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Ball,valve,ported
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)

Technical Specifications

Parameter	Value
NSN	4820-01-421-2581
Item Name	Ball,valve,ported
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE

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 4

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

4820-01-421-2592SPM-E105 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)Imi Critical Engr Pbm Llc

4820-01-421-2595SPB-14-3F15 POSSIBLE MATCH

TAILPIECE,VALVE

Possible match (shared part number)Imi Critical Engr Pbm Llc

4820-01-421-2597SPB-34-1 POSSIBLE MATCH

BODY,VALVE

Possible match (shared part number)Imi Critical Engr Pbm Llc

4820-01-421-5255SPB-E1L-A-L POSSIBLE MATCH

VALVE,BALL

Possible match (shared part number)Imi Critical Engr Pbm Llc

Cross-Reference Index

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

Reference documents

Reference	Meaning
SPM-34-2	3/2 Design control — primary reference U.S. Government activity
SPB-34-F152/B7 ITEM 2	5/2 Secondary reference U.S. Government activity
SPB-34-F152/B7	D/9 Drawing number reference only U.S. Government activity

Related Parts

4820-01-421-2592POSSIBLE MATCH

STEM,FLUID VALVE

SPM-E105

4820-01-421-2595POSSIBLE MATCH

TAILPIECE,VALVE

SPB-14-3F15

4820-01-421-2597POSSIBLE MATCH

BODY,VALVE

SPB-34-1

4820-01-421-5255POSSIBLE MATCH

VALVE,BALL

SPB-E1L-A-L

Frequently Asked Questions

What is NSN 4820-01-421-2581?

NSN 4820-01-421-2581 is a Ball,valve,ported, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-421-2581?

4 possible matches (shared part number, not a government interchangeability claim): 4820-01-421-2592, 4820-01-421-2595, 4820-01-421-2597. Verify interchangeability with system specifications before substitution.

Is NSN 4820-01-421-2581 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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