Retainer, Seat, Valve4820-01-113-4577

NSN 4820-01-113-4577 · NIIN 011134577

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-113-4577 · 4820011134577 · NIIN 011134577 · 01-113-4577 · FSC 4820 Valves, Nonpowered · V2C11386-8CA · V1E10204-01 PIECE 8 · V1E10204

Nearby stock numbers ← 4820-01-113-4576 · 4820-01-113-4580 →

4820-01-113-4577 — Valves, Nonpowered

Features

Retainer,seat,valve — FSC 4820
Valve Model Number for Which Designed: V1E10204
Valve Design Control Activity: 99517
Material: COPPER ALLOY OR NICKEL ALLOY

Identification

NSN: 4820-01-113-4577
NIIN: 011134577
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Retainer,seat,valve, cataloged under National Stock Number 4820-01-113-4577, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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	4820-01-113-4577
Item Name	Retainer,seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Valve Model Number for Which Designed	V1E10204
Valve Design Control Activity	99517
Material	COPPER ALLOY OR NICKEL 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 2

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

4810-01-160-8233KC0-V1E10204 POSSIBLE MATCH

PARTS KIT,VENT VALVE

Possible match (shared part number)Vacco Industries

5930-01-181-5566518-4864273 ITEM 10 POSSIBLE MATCH

ADAPTER,SWITCH ACTUATOR

Possible match (shared part number)Naval Ship Systems Command

Cross-Reference Index

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

Reference documents

Reference	Meaning
V2C11386-8CA	3/2 Design control — primary reference U.S. Government activity
V1E10204-01 PIECE 8	5/2 Secondary reference U.S. Government activity
V1E10204	D/9 Drawing number reference only U.S. Government activity

Related Parts

4810-01-160-8233POSSIBLE MATCH

PARTS KIT,VENT VALVE

KC0-V1E10204

5930-01-181-5566POSSIBLE MATCH

ADAPTER,SWITCH ACTUATOR

518-4864273 ITEM 10

Frequently Asked Questions

What is NSN 4820-01-113-4577?

NSN 4820-01-113-4577 is a Retainer,seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-113-4577?

2 possible matches (shared part number, not a government interchangeability claim): 4810-01-160-8233, 5930-01-181-5566. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-113-4577?

Key specifications for 4820-01-113-4577: Valve Model Number for Which Designed: V1E10204; Valve Design Control Activity: 99517; Material: COPPER ALLOY OR NICKEL ALLOY. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-113-4577 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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