NSN 4820-01-435-0262 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-435-0262. Manufacturer of record part number: 8114-026-002-S.
The Disk,valve, cataloged under National Stock Number 4820-01-435-0262, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Velan Valve Corp.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-435-0262
Primary Part Number
8114-026-002-S
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Velan Valve Corp.
Status
ACTIVE
Shoulder Width
0.415 INCHES NOMINAL IN
Shoulder Height
0.250 INCHES NOMINAL IN
Outside Diameter
3.870 INCHES NOMINAL IN
Seat Angle
27.0 DEGREES NOMINAL
Media for Which Designed
LIQUID
Material
STEEL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-437-4651B10-2084P-02TS CDS-P239233G01POSSIBLE MATCH
VALVE,STOP-CHECK
Possible match (shared part number)Velan Valve Corp.
4820-01-470-87728254-010-061POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Velan Valve Corp.
4820-01-470-87748114-027-002-SPOSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Velan Valve Corp.
4820-01-470-8850B10-2084P-02TS (7840-018 REV X)POSSIBLE MATCH
VALVE,CHECK
Possible match (shared part number)Velan Valve Corp.
4820-01-470-90909564-022-063POSSIBLE MATCH
RETAINER,DISK,VALVE
Possible match (shared part number)Velan Valve Corp.
5310-01-476-98438984-039-040POSSIBLE MATCH
NUT,SLEEVE
Possible match (shared part number)Velan Valve Corp.
NSN 4820-01-435-0262 is a Disk,valve, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-435-0262?
NSN 4820-01-435-0262 has 2 manufacturer part numbers on file: 8114-026-002-S (Velan Valve Corp.), 7840-018 ITEM 51D (Velan Valve Corp.).
What NSN replaces 4820-01-435-0262?
6 possible matches (shared part number, not a government interchangeability claim): 4820-01-437-4651, 4820-01-470-8772, 4820-01-470-8774. Verify interchangeability with system specifications before substitution.
What are the specifications of 8114-026-002-S?
Key specifications for 8114-026-002-S: Overall Height: 2.375 INCHES NOMINAL IN; Shoulder Width: 0.415 INCHES NOMINAL IN; Shoulder Height: 0.250 INCHES NOMINAL IN; Outside Diameter: 3.870 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-435-0262 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.