Ball and Seat Assembly4820-01-090-4662

NSN 4820-01-090-4662 · NIIN 010904662

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-090-4662 · 4820010904662 · NIIN 010904662 · 01-090-4662 · FSC 4820 Valves, Nonpowered · M-1861A SH4 PCS · M-1861A SHEET 4 PIECE 4-10QA · B-1918ANDST-1948 · B-1918ANDST-1948QA · M-1861A SHEET 4 PIECE 4-10

Nearby stock numbers ← 4820-01-090-4661 Valve, Inlet · 4820-01-090-4664 Stem, Valve →

4820-01-090-4662 — Valves, Nonpowered

Features

Ball and Seat Assembly — FSC 4820
Reference Number Differentiating Characteristics: QUALITY ASSURANCE TESTED FOR SUBMARINE SAFETY PROGRAM

Identification

NSN: 4820-01-090-4662
NIIN: 010904662
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Ball and Seat Assembly, cataloged under National Stock Number 4820-01-090-4662, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-01-090-4662
Item Name	Ball and Seat Assembly
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Reference Number Differentiating Characteristics	QUALITY ASSURANCE TESTED FOR SUBMARINE SAFETY PROGRAM

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
M-1861A SH4 PCS	C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc.
M-1861A SHEET 4 PIECE 4-10QA	5/1 Secondary reference Naval Inventory Control Point Mechanicsburg
B-1918ANDST-1948	5/9 Secondary reference Morland Valve Co Inc Sub of Smith Valve Corp
B-1918ANDST-1948QA	5/1 Secondary reference Naval Inventory Control Point Mechanicsburg
M-1861A SHEET 4 PIECE 4-10	3/9 Design control — primary reference Morland Valve Co Inc Sub of Smith Valve Corp

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 4820-01-090-4662?

NSN 4820-01-090-4662 is a Ball and Seat Assembly, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-090-4662?

Key specifications for 4820-01-090-4662: Reference Number Differentiating Characteristics: QUALITY ASSURANCE TESTED FOR SUBMARINE SAFETY PROGRAM. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-090-4662 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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