NSN 4820-01-541-3725 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-541-3725. Manufacturer of record part number: BU-150X125-B-M-1/8.
Also searched as4820-01-541-3725 ·
4820015413725 ·
NIIN 015413725 ·
01-541-3725 ·
FSC 4820 Valves, Nonpowered · CAGE 28396 · BU-150X125-B-M-1/8
Supplementary Features: 1-1/2" BU STYLE CHECK VALVE IN BRASS WITH METAL-TO-METAL SEAT AND 1/8 PSI SPRING CRACKING PRESSURE
Operating Pressure: 0.1 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Material: STEEL COMP 316 SEAT
1 manufacturer part number on file
Manufacturer of record: International Valve Corp Dba Check-All Valve Mfg. Co.
Identification
NSN: 4820-01-541-3725
NIIN: 015413725
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: BU-150X125-B-M-1/8
Manufacturer: International Valve Corp Dba Check-All Valve Mfg. Co.
General Description
The Valve,check, cataloged under National Stock Number 4820-01-541-3725, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is International Valve Corp Dba Check-All Valve Mfg. Co.. Government technical data includes 3 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
4820-01-541-3725
Primary Part Number
BU-150X125-B-M-1/8
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
International Valve Corp Dba Check-All Valve Mfg. Co.
Status
ACTIVE
Supplementary Features
1-1/2" BU STYLE CHECK VALVE IN BRASS WITH METAL-TO-METAL SEAT AND 1/8 PSI SPRING CRACKING PRESSURE
Operating Pressure
0.1 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
International Valve Corp Dba Check-All Valve Mfg. Co. (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 4820-01-541-3725?
NSN 4820-01-541-3725 is a Valve,check, manufactured by International Valve Corp Dba Check-All Valve Mfg. Co., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-541-3725?
NSN 4820-01-541-3725 has 1 manufacturer part number on file: BU-150X125-B-M-1/8 (International Valve Corp Dba Check-All Valve Mfg. Co.).
What are the specifications of BU-150X125-B-M-1/8?
Key specifications for BU-150X125-B-M-1/8: Supplementary Features: 1-1/2" BU STYLE CHECK VALVE IN BRASS WITH METAL-TO-METAL SEAT AND 1/8 PSI SPRING CRACKING PRESSURE; Operating Pressure: 0.1 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Part Name Assigned by Controlling Agency: CHECK VALVE; End Item Identification: NSN: 7360-01-496-2112. 3 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-541-3725 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.