PartsTable TECHNICAL DATA SHEET

NSN 4820-01-115-1519Government record, cited

Disk, Valve4820-01-115-1519

NSN 4820-01-115-1519 · NIIN 011151519

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-115-1519 · 4820011151519 · NIIN 011151519 · 01-115-1519 · FSC 4820 Valves, Nonpowered · 412-4678004 ITEM 31 · 87684-1504 ITEM 31 · 412-4678004 · 87684-1504

Nearby stock numbers ← 4820-01-115-1467 Ball, Valve, Ported · 4820-01-115-1520 →

4820-01-115-1519 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
Outside Diameter: 0.950 INCHES NOMINAL IN
Style Designator: PLAIN
Inside Diameter: 0.540 INCHES NOMINAL IN
Media for Which Designed: WATER
Material: TITANIUM ALLOY

Identification

NSN: 4820-01-115-1519
NIIN: 011151519
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-115-1519, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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	4820-01-115-1519
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Outside Diameter	0.950 INCHES NOMINAL IN
Style Designator	PLAIN
Inside Diameter	0.540 INCHES NOMINAL IN
Media for Which Designed	WATER
Material	TITANIUM ALLOY

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 8

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

4820-01-115-34944678004 U1C POSSIBLE MATCH

ROD,VALVE

Possible match (shared part number)Naval Ship Systems Command

4820-01-115-684487684-1504 ITEM 22 POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4820-01-115-7641 POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)

4820-01-133-4101412-4678004 ITEM 11 POSSIBLE MATCH

BAR,VALVE

Possible match (shared part number)Naval Ship Systems Command

5310-01-140-2080412-4678004 ITEM 20 POSSIBLE MATCH

NUT,SEAL ADJUSTING

Possible match (shared part number)Naval Ship Systems Command

4820-01-169-9733412-4678004 ITEM 12 POSSIBLE MATCH

HUB,VALVE

Possible match (shared part number)Naval Ship Systems Command

4820-01-211-5339412-4678004 ITEM 1 POSSIBLE MATCH

MOUNT,VALVE

Possible match (shared part number)Naval Ship Systems Command

4820-01-249-9925 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)

Cross-Reference Index

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

Reference documents

Reference	Meaning
412-4678004 ITEM 31	5/2 Secondary reference U.S. Government activity
87684-1504 ITEM 31	3/2 Design control — primary reference U.S. Government activity
412-4678004	D/9 Drawing number reference only U.S. Government activity
87684-1504	D/9 Drawing number reference only U.S. Government activity

Related Parts

4820-01-115-3494POSSIBLE MATCH

ROD,VALVE

4678004 U1C

4820-01-115-6844POSSIBLE MATCH

DISK,VALVE

87684-1504 ITEM 22

4820-01-115-7641POSSIBLE MATCH

DISK,VALVE

4820-01-133-4101POSSIBLE MATCH

BAR,VALVE

412-4678004 ITEM 11

5310-01-140-2080POSSIBLE MATCH

NUT,SEAL ADJUSTING

412-4678004 ITEM 20

4820-01-169-9733POSSIBLE MATCH

HUB,VALVE

412-4678004 ITEM 12

4820-01-211-5339POSSIBLE MATCH

MOUNT,VALVE

412-4678004 ITEM 1

4820-01-249-9925POSSIBLE MATCH

STEM,FLUID VALVE

Frequently Asked Questions

What is NSN 4820-01-115-1519?

NSN 4820-01-115-1519 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-115-1519?

8 possible matches (shared part number, not a government interchangeability claim): 4820-01-115-3494, 4820-01-115-6844, 4820-01-115-7641. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-115-1519?

Key specifications for 4820-01-115-1519: Overall Height: 0.032 INCHES NOMINAL IN; Outside Diameter: 0.950 INCHES NOMINAL IN; Style Designator: PLAIN; Inside Diameter: 0.540 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-115-1519 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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