Seat, Valve4820-01-426-0270

NSN 4820-01-426-0270 · NIIN 014260270 · Part number H-11SW0.25IN IT15

Bonney Forge Valve · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 4V609

Government record, cited

NSN 4820-01-426-0270 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-426-0270. Manufacturer of record part number: H-11SW0.25IN IT15.

Also searched as 4820-01-426-0270 · 4820014260270 · NIIN 014260270 · 01-426-0270 · FSC 4820 Valves, Nonpowered · CAGE 4V609 · H-11SW0.25IN IT15 · BONNEY CAT H-11SW0.25IN IT15

Nearby stock numbers ← 4820-01-426-0267 Stem, Fluid Valve · 4820-01-426-0271 Seat, Valve →

4820-01-426-0270 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Material: STEEL COMP 410 SEAT
2 manufacturer part numbers on file
Manufacturer of record: Bonney Forge Valve

Identification

NSN: 4820-01-426-0270
NIIN: 014260270
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: H-11SW0.25IN IT15
Manufacturer: Bonney Forge Valve

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-426-0270, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bonney Forge Valve. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-426-0270
Primary Part Number	H-11SW0.25IN IT15
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Bonney Forge Valve
Status	ACTIVE
Material	STEEL COMP 410 SEAT

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
BONNEY CAT H-11SW0.25IN IT15	Valve Automation and Control of San Diego Dba Valve Automation & Control of San Diego Div Valve Automation and Controls of (USA)
H-11SW0.25IN IT15 PRIMARY	Bonney Forge Valve (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 4820-01-426-0270?

NSN 4820-01-426-0270 is a Seat,valve, manufactured by Bonney Forge Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-426-0270?

NSN 4820-01-426-0270 has 2 manufacturer part numbers on file: BONNEY CAT H-11SW0.25IN IT15 (Valve Automation and Control of San Diego Dba Valve Automation & Control of San Diego Div Valve Automation and Controls of), H-11SW0.25IN IT15 (Bonney Forge Valve).

What are the specifications of H-11SW0.25IN IT15?

Key specifications for H-11SW0.25IN IT15: Special Features: FOR SZ 0.250 IN. GATE VALVE IN; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Material: STEEL COMP 410 SEAT. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-426-0270 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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