NSN 4820-01-258-3954 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-258-3954. Manufacturer of record part number: 803-5959276.
Also searched as4820-01-258-3954 ·
4820012583954 ·
NIIN 012583954 ·
01-258-3954 ·
FSC 4820 Valves, Nonpowered · CAGE 53711 · 803-5959276
Material Document and Classification: ASTM A27,UNS J03000 ASSN STD SINGLE MATERIAL RESPONSE BODY
Material Document and Classification: MIL-I-24172,TYPE I,CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
Operating Pressure: 75.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
Material: STEEL BODY
Identification
NSN: 4820-01-258-3954
NIIN: 012583954
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 803-5959276
Manufacturer: Naval Sea Systems Command
General Description
The Valve,float, cataloged under National Stock Number 4820-01-258-3954, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 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
4820-01-258-3954
Primary Part Number
803-5959276
Item Name
Valve,float
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Flow Control Device
BALL
Furnished Items and Quantity
1 CAP
Material Document and Classification
ASTM A27,UNS J03000 ASSN STD SINGLE MATERIAL RESPONSE BODY
Material Document and Classification
MIL-I-24172,TYPE I,CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
Operating Pressure
75.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE 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 4820-01-258-3954?
NSN 4820-01-258-3954 is a Valve,float, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-258-3954?
NSN 4820-01-258-3954 has 1 manufacturer part number on file: 803-5959276 (Naval Sea Systems Command).
What are the specifications of 803-5959276?
Key specifications for 803-5959276: Flow Control Device: BALL; Furnished Items and Quantity: 1 CAP; Material Document and Classification: ASTM A27,UNS J03000 ASSN STD SINGLE MATERIAL RESPONSE BODY; Material Document and Classification: MIL-I-24172,TYPE I,CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE. 8 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-258-3954 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.