NSN 4820-01-559-8501 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-559-8501. Manufacturer of record part number: VA5142.
Also searched as4820-01-559-8501 ·
4820015598501 ·
NIIN 015598501 ·
01-559-8501 ·
FSC 4820 Valves, Nonpowered · CAGE 1UYK1 · VA5142
Accessory Components and Quantity: CYLINDER BODY 1; CYLINDER DISK 1;STEM 1; PISTON 1; HEX CAP SCREW 4; CAP1; O-RING 5; SEAL WASHER 1; VALVE BODY1; U-CUP SEAL 3; HEX JAM NUT 1; LOCK WASHER 5; SPRING 2; SEAL SCREW 1; SCREW1; FLUSHING PLUG 1; QUICK EXHAUST ASSEMBLY 1
1 manufacturer part number on file
Manufacturer of record: Civacon
Identification
NSN: 4820-01-559-8501
NIIN: 015598501
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: VA5142
Manufacturer: Civacon
General Description
The Valve,emergency, cataloged under National Stock Number 4820-01-559-8501, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Civacon. Government technical data includes 1 specification, 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
4820-01-559-8501
Primary Part Number
VA5142
Item Name
Valve,emergency
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Civacon
Status
ACTIVE
Accessory Components and Quantity
CYLINDER BODY 1; CYLINDER DISK 1;STEM 1; PISTON 1; HEX CAP SCREW 4; CAP1; O-RING 5; SEAL WASHER 1; VALVE BODY1; U-CUP SEAL 3; HEX JAM NUT 1; LOCK WASHER 5; SPRING 2; SEAL SCREW 1; SCREW1; FLUSHING PLUG 1; QUICK EXHAUST ASSEMBLY 1
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 4820-01-559-8501?
NSN 4820-01-559-8501 is a Valve,emergency, manufactured by Civacon, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-559-8501?
NSN 4820-01-559-8501 has 1 manufacturer part number on file: VA5142 (Civacon).
What are the specifications of VA5142?
Key specifications for VA5142: Overall Height: 13.312 INCHES NOMINAL IN; Overall Width: 11.625 INCHES NOMINAL IN; Accessory Components and Quantity: CYLINDER BODY 1; CYLINDER DISK 1;STEM 1; PISTON 1; HEX CAP SCREW 4; CAP1; O-RING 5; SEAL WASHER 1; VALVE BODY1; U-CUP SEAL 3; HEX JAM NUT 1; LOCK WASHER 5; SPRING 2; SEAL SCREW 1; SCREW1; FLUSHING PLUG 1; QUICK EXHAUST ASSEMBLY 1; Part Name Assigned by Controlling Agency: 5" X 4" EMERGENCY VALVE. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-559-8501 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.