Stem and Disc Assem4820-01-555-9558

NSN 4820-01-555-9558 · NIIN 015559558

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-555-9558 · 4820015559558 · NIIN 015559558 · 01-555-9558 · FSC 4820 Valves, Nonpowered · 2177525 · 803-2177525-S4XX-89

Nearby stock numbers ← 4820-01-555-9546 Disk, Valve · 4820-01-555-9568 Stem and Disc Assembly, Valve →

4820-01-555-9558 — Valves, Nonpowered

Features

Stem and Disc Assem — FSC 4820
General Characteristics Item Description: COMPONENT QUANTITY 4. FURNISHED ITEMS 1 EA. DISC WASHER, 1 EA. DISC STEM RING, 1 EA. STEM AND 1 EA. DISC (THROTTLE)
Supplementary Features: STAINLESS STEEL STEM DISK ASSEMBLY FOR 0.750 INCH VALVE IN

Identification

NSN: 4820-01-555-9558
NIIN: 015559558
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Stem and Disc Assem, cataloged under National Stock Number 4820-01-555-9558, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-555-9558
Item Name	Stem and Disc Assem
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
General Characteristics Item Description	COMPONENT QUANTITY 4. FURNISHED ITEMS 1 EA. DISC WASHER, 1 EA. DISC STEM RING, 1 EA. STEM AND 1 EA. DISC (THROTTLE)
Supplementary Features	STAINLESS STEEL STEM DISK ASSEMBLY FOR 0.750 INCH VALVE 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

Cross-Reference Index

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

Reference documents

Reference	Meaning
2177525	D/9 Drawing number reference only U.S. Government activity
803-2177525-S4XX-89	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

4820-00-001-0020

4820-00-001-0020 · Item name not on file

4820-00-001-0021

4820-00-001-0021 · Item name not on file

4820-00-001-0032

4820-00-001-0032 · Item name not on file

4820-00-001-0037

VALVE,SAFETY RELIEF

4820-00-001-0042

4820-00-001-0042 · Item name not on file

4820-00-001-1230

4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-555-9558?

NSN 4820-01-555-9558 is a Stem and Disc Assem, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-555-9558?

Key specifications for 4820-01-555-9558: General Characteristics Item Description: COMPONENT QUANTITY 4. FURNISHED ITEMS 1 EA. DISC WASHER, 1 EA. DISC STEM RING, 1 EA. STEM AND 1 EA. DISC (THROTTLE); Supplementary Features: STAINLESS STEEL STEM DISK ASSEMBLY FOR 0.750 INCH VALVE IN; Special Features: FULL ITEM NAME IS STEM AND DISC ASSEMBLY VALVE. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-555-9558 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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