NSN 4820-01-649-6810 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-649-6810. Manufacturer of record part number: 262B-3PP.
Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size: 0.25 INCHES ALL ENDS IN
Maximum Operating Temp: 300.0 FAHRENHEIT SINGLE RESPONSE DEGF
Face to Face Distance: 2.25 INCHES IN
Material: COPPER ALLOY BODY
Identification
NSN: 4820-01-649-6810
NIIN: 016496810
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 262B-3PP
Manufacturer: Gws Supply Inc
General Description
The Valve,check, cataloged under National Stock Number 4820-01-649-6810, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Gws Supply Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-649-6810
Primary Part Number
262B-3PP
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Gws Supply Inc
Status
ACTIVE
Connection Type
THREADED INTERNAL PIPE ALL ENDS
Style Designator
STRAIGHT THRU
Operating Pressure
3000.0 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 4820-01-649-6810?
NSN 4820-01-649-6810 is a Valve,check, manufactured by Gws Supply Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-649-6810?
NSN 4820-01-649-6810 has 2 manufacturer part numbers on file: 262B-3PP (Gws Supply Inc), 3807413 (Oshkosh Defense Llc).
What are the specifications of 262B-3PP?
Key specifications for 262B-3PP: Connection Type: THREADED INTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Nominal Thread Size: 0.25 INCHES ALL ENDS IN. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-649-6810 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.