Seat, Valve4820-01-123-2149

NSN 4820-01-123-2149 · NIIN 011232149 · Part number 51729B002

Dover Resources, Inc. Div Norriseal · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 1NB39

Government record, cited

NSN 4820-01-123-2149 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-123-2149. Manufacturer of record part number: 51729B002.

Also searched as 4820-01-123-2149 · 4820011232149 · NIIN 011232149 · 01-123-2149 · FSC 4820 Valves, Nonpowered · CAGE 1NB39 · 51729B002 · 911-471 REF 5 2 1-2IN · 729B002 · 911-470 REF 5 2 1-2IN · 911-471

Nearby stock numbers ← 4820-01-123-2133 · 4820-01-123-2153 Stem, Fluid Valve →

4820-01-123-2149 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Dover Resources, Inc. Div Norriseal

Identification

NSN: 4820-01-123-2149
NIIN: 011232149
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 51729B002
Manufacturer: Dover Resources, Inc. Div Norriseal

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-123-2149, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dover Resources, Inc. Div Norriseal. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	Dover Resources, Inc. Div Norriseal (CAGE 1NB39)

Technical Specifications

Parameter	Value
NSN	4820-01-123-2149
Primary Part Number	51729B002
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Dover Resources, Inc. Div Norriseal
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
911-470 REF 5 2 1-2IN	Dover Resources, Inc. Div Norriseal (USA)
51729B002 PRIMARY	Dover Resources, Inc. Div Norriseal (USA)

Reference documents

Reference	Meaning
911-471 REF 5 2 1-2IN	5/9 Secondary reference U.S. Government activity
729B002	5/9 Secondary reference U.S. Government activity
51729B002	5/9 Secondary reference U.S. Government activity
911-471	D/9 Drawing number reference only U.S. Government activity

Frequently Asked Questions

What is NSN 4820-01-123-2149?

NSN 4820-01-123-2149 is a Seat,valve, manufactured by Dover Resources, Inc. Div Norriseal, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-123-2149?

NSN 4820-01-123-2149 has 2 manufacturer part numbers on file: 911-470 REF 5 2 1-2IN (Dover Resources, Inc. Div Norriseal), 51729B002 (Dover Resources, Inc. Div Norriseal).

Is NSN 4820-01-123-2149 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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