PartsTable TECHNICAL DATA SHEET

NSN 4820-01-454-6499Government record, cited

Valve, Check4820-01-454-6499

NSN 4820-01-454-6499 · NIIN 014546499 · Part number 1.0IN-F99A

Aalberts Integrated Piping Systems Americas, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 72219

Government record, cited

NSN 4820-01-454-6499 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-454-6499. Manufacturer of record part number: 1.0IN-F99A.

Also searched as 4820-01-454-6499 · 4820014546499 · NIIN 014546499 · 01-454-6499 · FSC 4820 Valves, Nonpowered · CAGE 72219 · 1.0IN-F99A

Nearby stock numbers ← 4820-01-454-6393 Valve, Expansion · 4820-01-454-6506 Seat, Valve →

4820-01-454-6499 — Valves, Nonpowered

Features

Valve,check — FSC 4820
Flow Control Device: DISK
Renewable Seat Ring Type: BOLTED
Connection Style: SOCKET (TUBE) ALL ENDS
Mounting Position: HORIZONTAL
Connection Type: BUTT WELD TUBE ALL ENDS
Style Designator: STRAIGHT THRU
Nominal Outside Diameter Tube Accommodated: 1.025 INCHES ALL ENDS IN

Identification

NSN: 4820-01-454-6499
NIIN: 014546499
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 1.0IN-F99A
Manufacturer: Aalberts Integrated Piping Systems Americas, Inc.

General Description

The Valve,check, cataloged under National Stock Number 4820-01-454-6499, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aalberts Integrated Piping Systems Americas, Inc.. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-454-6499
Primary Part Number	1.0IN-F99A
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Aalberts Integrated Piping Systems Americas, Inc.
Status	ACTIVE
Flow Control Device	DISK
Renewable Seat Ring Type	BOLTED
Connection Style	SOCKET (TUBE) ALL ENDS
Mounting Position	HORIZONTAL
Connection Type	BUTT WELD TUBE ALL ENDS
Style Designator	STRAIGHT THRU
Nominal Outside Diameter Tube Accommodated	1.025 INCHES ALL ENDS IN
Operating Pressure	1975.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Maximum Operating Temp	100.0 FAHRENHEIT SINGLE RESPONSE DEGF
Disk Loading Method	WEIGHT
Mounting Facility	BRACKET(S)
Material	STEEL CORROSION RESISTING BODY
Opening Pressure Setting	25.0 POUNDS PER SQUARE INCH LBS
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
1.0IN-F99A PRIMARY	Aalberts Integrated Piping Systems Americas, Inc. (USA)

Reference documents

Reference	Meaning
1.0IN-F99A	5/9 Secondary reference U.S. Government activity

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

Related Parts in Valves

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

8171E-1/4HS2

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

D559A3M2

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 4820-01-454-6499?

NSN 4820-01-454-6499 is a Valve,check, manufactured by Aalberts Integrated Piping Systems Americas, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-454-6499?

NSN 4820-01-454-6499 has 1 manufacturer part number on file: 1.0IN-F99A (Aalberts Integrated Piping Systems Americas, Inc.).

What are the specifications of 1.0IN-F99A?

Key specifications for 1.0IN-F99A: Flow Control Device: DISK; Renewable Seat Ring Type: BOLTED; Connection Style: SOCKET (TUBE) ALL ENDS; Mounting Position: HORIZONTAL. 14 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-454-6499 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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