PartsTable TECHNICAL DATA SHEET

NSN 4820-01-149-5070Government record, cited

Disk, Valve4820-01-149-5070

NSN 4820-01-149-5070 · NIIN 011495070

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-149-5070 · 4820011495070 · NIIN 011495070 · 01-149-5070 · FSC 4820 Valves, Nonpowered · 310B171 · 51310B171 · 911-420 · 911-420 PART 2

Nearby stock numbers ← 4820-01-149-5046 Sleeve and Slide, Directional Control Linear Valve · 4820-01-149-5071 Disk, Valve →

4820-01-149-5070 — Valves, Nonpowered

Features

Disk,valve — FSC 4820

Identification

NSN: 4820-01-149-5070
NIIN: 011495070
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-149-5070, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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	Disk,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)

Technical Specifications

Parameter	Value
NSN	4820-01-149-5070
Item Name	Disk,valve
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.

4820-01-155-77511061353 POSSIBLE MATCH

VALVE,BUTTERFLY

Possible match (shared part number)Dover Resources, Inc. Div Norriseal

4820-01-160-35974R1020-43AA-1FM POSSIBLE MATCH

VALVE,BUTTERFLY

Possible match (shared part number)Dover Resources, Inc. Div Norriseal

4820-01-182-24895IN R1020-43AA-1FM POSSIBLE MATCH

VALVE,BUTTERFLY

Possible match (shared part number)Norriseal Norris Values Div Dba Dover Co

3040-01-467-820291-1420-1 POSSIBLE MATCH

CONNECTING LINK,RIGID

Possible match (shared part number)Grimes Aerospace Company

Cross-Reference Index

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

Reference documents

Reference	Meaning
310B171	5/9 Secondary reference U.S. Government activity
51310B171	3/2 Design control — primary reference U.S. Government activity
911-420	D/9 Drawing number reference only U.S. Government activity
911-420 PART 2	5/2 Secondary reference U.S. Government activity

Related Parts

4820-01-155-7751POSSIBLE MATCH

VALVE,BUTTERFLY

1061353

4820-01-160-3597POSSIBLE MATCH

VALVE,BUTTERFLY

4R1020-43AA-1FM

4820-01-182-2489POSSIBLE MATCH

VALVE,BUTTERFLY

5IN R1020-43AA-1FM

3040-01-467-8202POSSIBLE MATCH

CONNECTING LINK,RIGID

91-1420-1

Frequently Asked Questions

What is NSN 4820-01-149-5070?

NSN 4820-01-149-5070 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-149-5070?

4 possible matches (shared part number, not a government interchangeability claim): 4820-01-155-7751, 4820-01-160-3597, 4820-01-182-2489. Verify interchangeability with system specifications before substitution.

Is NSN 4820-01-149-5070 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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