Seat, Valve4820-01-398-5739

NSN 4820-01-398-5739 · NIIN 013985739 · Part number 0405NI 2.50IN ITEM 12

Fairbanks Co the · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 21368

Government record, cited

NSN 4820-01-398-5739 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-398-5739. Manufacturer of record part number: 0405NI 2.50IN ITEM 12.

Also searched as 4820-01-398-5739 · 4820013985739 · NIIN 013985739 · 01-398-5739 · FSC 4820 Valves, Nonpowered · CAGE 21368 · 0405NI 2.50IN ITEM 12

Nearby stock numbers ← 4820-01-398-5738 Valve, Gate · 4820-01-398-5740 Stem, Fluid Valve →

4820-01-398-5739 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Material: STEEL CORROSION RESISTING SEAT
Seating Surface Shape: ANGULAR
1 manufacturer part number on file
Manufacturer of record: Fairbanks Co the

Identification

NSN: 4820-01-398-5739
NIIN: 013985739
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 0405NI 2.50IN ITEM 12
Manufacturer: Fairbanks Co the

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-398-5739, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fairbanks Co the. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-398-5739
Primary Part Number	0405NI 2.50IN ITEM 12
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Fairbanks Co the
Status	ACTIVE
Material	STEEL CORROSION RESISTING SEAT
Seating Surface Shape	ANGULAR

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
0405NI 2.50IN ITEM 12 PRIMARY	Fairbanks Co the (USA)

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 4820-01-398-5739?

NSN 4820-01-398-5739 is a Seat,valve, manufactured by Fairbanks Co the, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-398-5739?

NSN 4820-01-398-5739 has 1 manufacturer part number on file: 0405NI 2.50IN ITEM 12 (Fairbanks Co the).

What are the specifications of 0405NI 2.50IN ITEM 12?

Key specifications for 0405NI 2.50IN ITEM 12: Special Features: FOR 2.500 IN. GATE VALVE IN; Material: STEEL CORROSION RESISTING SEAT; Seating Surface Shape: ANGULAR. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-398-5739 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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