NSN 4820-01-261-2464 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-261-2464. Manufacturer of record part number: 4662K18.
Also searched as4820-01-261-2464 ·
4820012612464 ·
NIIN 012612464 ·
01-261-2464 ·
FSC 4820 Valves, Nonpowered · CAGE 39428 · 4662K18
Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS
Connection Type: THREADED INTERNAL PIPE ALL ENDS
Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Direction: RIGHT-HAND ALL ENDS
Nominal Thread Size: 0.750 INCHES ALL ENDS IN
Maximum Operating Temp: 450.0 FAHRENHEIT SINGLE RESPONSE DEGF
Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
Identification
NSN: 4820-01-261-2464
NIIN: 012612464
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 4662K18
Manufacturer: Mcmaster-Carr Supply Co
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-261-2464, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 10 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
4820-01-261-2464
Primary Part Number
4662K18
Item Name
Valve,safety Relief
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Mcmaster-Carr Supply Co
Status
ACTIVE
Connection Style
PLAIN,OPTIONAL END(PIPE) ALL ENDS
Connection Type
THREADED INTERNAL PIPE ALL ENDS
Operating Pressure
300.0 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 4820-01-261-2464?
NSN 4820-01-261-2464 is a Valve,safety Relief, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-261-2464?
NSN 4820-01-261-2464 has 1 manufacturer part number on file: 4662K18 (Mcmaster-Carr Supply Co).
What are the specifications of 4662K18?
Key specifications for 4662K18: Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Thread Direction: RIGHT-HAND ALL ENDS. 10 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-261-2464 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.