Seat, Valve4820-01-502-0533

NSN 4820-01-502-0533 · NIIN 015020533 · Part number P10855A

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 55378

Government record, cited

NSN 4820-01-502-0533 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-502-0533. Manufacturer of record part number: P10855A.

Also searched as 4820-01-502-0533 · 4820015020533 · NIIN 015020533 · 01-502-0533 · FSC 4820 Valves, Nonpowered · CAGE 55378 · P10855A · NAP 958 CDS-1 · NAP-958 FIND NO. 13 · NAP 958

Nearby stock numbers ← 4820-01-502-0525 Stem, Fluid Valve · 4820-01-502-0535 Valve, Flow Control →

4820-01-502-0533 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc

Identification

NSN: 4820-01-502-0533
NIIN: 015020533
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: P10855A
Manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-502-0533, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Seat,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (CAGE 55378)

Technical Specifications

Parameter	Value
NSN	4820-01-502-0533
Primary Part Number	P10855A
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
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

Cross-Reference Index

Part Number	Manufacturer
P10855A	Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)

Reference documents

Reference	Meaning
NAP 958 CDS-1	D/9 Drawing number reference only Atlas Valve Co
NAP-958 FIND NO. 13	5/9 Secondary reference Atlas Valve Co
NAP 958	D/9 Drawing number reference only Atlas Valve Co
P10855A	3/9 Design control — primary reference Atlas Valve Co

Frequently Asked Questions

What is NSN 4820-01-502-0533?

NSN 4820-01-502-0533 is a Seat,valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-502-0533?

NSN 4820-01-502-0533 has 1 manufacturer part number on file: P10855A (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

Is NSN 4820-01-502-0533 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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