Valve, Check4820-01-547-5461

NSN 4820-01-547-5461 · NIIN 015475461 · Part number S9RG10-2.5IN

W & O Supply Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 1QP40

Government record, cited

NSN 4820-01-547-5461 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-547-5461. Manufacturer of record part number: S9RG10-2.5IN.

Also searched as 4820-01-547-5461 · 4820015475461 · NIIN 015475461 · 01-547-5461 · FSC 4820 Valves, Nonpowered · CAGE 1QP40 · S9RG10-2.5IN

Nearby stock numbers ← 4820-01-547-5445 Seat, Valve · 4820-01-547-5467 Valve, Check →

4820-01-547-5461 — Valves, Nonpowered

Features

Valve,check — FSC 4820
Flow Control Device: DISK
Flange Shape: ROUND WITH HOLES ALL ENDS
Flange Face Design: RAISED STRAIGHT ALL ENDS
Connection Type: FLANGE ALL ENDS
Style Designator: STRAIGHT THRU FLANGED ENDS
Valve Size: 2.500 INCHES IN
Disk Loading Method: WEIGHT

Identification

NSN: 4820-01-547-5461
NIIN: 015475461
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: S9RG10-2.5IN
Manufacturer: W & O Supply Inc

General Description

The Valve,check, cataloged under National Stock Number 4820-01-547-5461, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is W & O Supply Inc. Government technical data includes 10 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	4820-01-547-5461
Primary Part Number	S9RG10-2.5IN
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	W & O Supply Inc
Status	ACTIVE
Flow Control Device	DISK
Flange Shape	ROUND WITH HOLES ALL ENDS
Flange Face Design	RAISED STRAIGHT ALL ENDS
Connection Type	FLANGE ALL ENDS
Style Designator	STRAIGHT THRU FLANGED ENDS
Valve Size	2.500 INCHES IN
Disk Loading Method	WEIGHT
Media for Which Designed	WATER, FRESH SINGLE RESPONSE
Material	STEEL CORROSION RESISTING OVERALL
Valve Operation Method	AUTOMATIC

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
S9RG10-2.5IN PRIMARY	W & O Supply Inc (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 4820-01-547-5461?

NSN 4820-01-547-5461 is a Valve,check, manufactured by W & O Supply Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-547-5461?

NSN 4820-01-547-5461 has 1 manufacturer part number on file: S9RG10-2.5IN (W & O Supply Inc).

What are the specifications of S9RG10-2.5IN?

Key specifications for S9RG10-2.5IN: Flow Control Device: DISK; Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: RAISED STRAIGHT ALL ENDS; Connection Type: FLANGE ALL ENDS. 10 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-547-5461 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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