NSN 4820-01-557-6982 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-557-6982. Manufacturer of record part number: M6A-NP6AR-SSP.
Operating Pressure: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Maximum Operating Temp: 177.0 CELSIUS SINGLE RESPONSE DEGC
Material: STEEL CORROSION RESISTING BODY
Valve Operation Method: MANUAL
2 manufacturer part numbers on file
Identification
NSN: 4820-01-557-6982
NIIN: 015576982
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: M6A-NP6AR-SSP
Manufacturer: Parker-Hannifin Corp Div Instrumentation Products Division
General Description
The Cock,shutoff,screw Stem, cataloged under National Stock Number 4820-01-557-6982, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corp Div Instrumentation Products Division. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-557-6982
Primary Part Number
M6A-NP6AR-SSP
Item Name
Cock,shutoff,screw Stem
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Parker-Hannifin Corp Div Instrumentation Products Division
Status
ACTIVE
Flow Control Device
NEEDLE
Style Designator
STRAIGHT THRU
Operating Pressure
6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Parker-Hannifin Corp Div Instrumentation Products Division (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 4820-01-557-6982?
NSN 4820-01-557-6982 is a Cock,shutoff,screw Stem, manufactured by Parker-Hannifin Corp Div Instrumentation Products Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-557-6982?
NSN 4820-01-557-6982 has 2 manufacturer part numbers on file: 189726462 (Safran Electronics & Defense), M6A-NP6AR-SSP (Parker-Hannifin Corp Div Instrumentation Products Division).
What are the specifications of M6A-NP6AR-SSP?
Key specifications for M6A-NP6AR-SSP: Flow Control Device: NEEDLE; Style Designator: STRAIGHT THRU; Operating Pressure: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Maximum Operating Temp: 177.0 CELSIUS SINGLE RESPONSE DEGC. 6 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-557-6982 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.