NSN 4820-01-444-6746 · NIIN 014446746 · Part number B-51012
Mirada Research & Manufacturing, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 08407
Government record, cited
NSN 4820-01-444-6746 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-444-6746. Manufacturer of record part number: B-51012.
Also searched as4820-01-444-6746 ·
4820014446746 ·
NIIN 014446746 ·
01-444-6746 ·
FSC 4820 Valves, Nonpowered · CAGE 08407 · B-51012
Operating Pressure: 2.3 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Operating Pressure: 4.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
1 manufacturer part number on file
Manufacturer of record: Mirada Research & Manufacturing, Inc.
Identification
NSN: 4820-01-444-6746
NIIN: 014446746
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: B-51012
Manufacturer: Mirada Research & Manufacturing, Inc.
General Description
The Valve,check, cataloged under National Stock Number 4820-01-444-6746, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mirada Research & Manufacturing, Inc.. 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
4820-01-444-6746
Primary Part Number
B-51012
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Mirada Research & Manufacturing, Inc.
Status
ACTIVE
Operating Pressure
2.3 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Operating Pressure
4.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
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 4820-01-444-6746?
NSN 4820-01-444-6746 is a Valve,check, manufactured by Mirada Research & Manufacturing, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-444-6746?
NSN 4820-01-444-6746 has 1 manufacturer part number on file: B-51012 (Mirada Research & Manufacturing, Inc.).
What are the specifications of B-51012?
Key specifications for B-51012: Operating Pressure: 2.3 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS; Operating Pressure: 4.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS; Special Features: FLOW RATE 40 CFM AT 3.7 PSI; WEIGHT 0.085 LB LBS; End Item Identification: LIFE RAFT RBN-20, DUNLOP-BEAUFORT OF CANADA LTD. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-444-6746 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.