NSN 4820-01-024-2027 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-024-2027. Manufacturer of record part number: 2628100.
General Characteristics Item Description: FOUR-WAY HYDRAULIC DIRECTIONAL CONTROL VALVE,PRESSURE OPERATED THREE POSITION SLIDING SPOOL TYPE,SPRING CENTERED TO NEUTRAL POSITION WITH PARTIALLY CLOSED CENTER,DESIGN MECHANICAL,SPOOL TRAVEL 0.312 IN. NOM,SPOOL DIA 0.500 IN. NOM,VALVE ASSEMBLY WEIGHT 1.5 LBS NOM,HYDRALUIC OIL DESIGN LBS
2 manufacturer part numbers on file
Manufacturer of record: Naval Sea Systems Command
Identification
NSN: 4820-01-024-2027
NIIN: 010242027
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 2628100
Manufacturer: Naval Sea Systems Command
General Description
The Valve Assembly,pressure Operated, cataloged under National Stock Number 4820-01-024-2027, 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 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-024-2027
Primary Part Number
2628100
Item Name
Valve Assembly,pressure Operated
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
General Characteristics Item Description
FOUR-WAY HYDRAULIC DIRECTIONAL CONTROL VALVE,PRESSURE OPERATED THREE POSITION SLIDING SPOOL TYPE,SPRING CENTERED TO NEUTRAL POSITION WITH PARTIALLY CLOSED CENTER,DESIGN MECHANICAL,SPOOL TRAVEL 0.312 IN. NOM,SPOOL DIA 0.500 IN. NOM,VALVE ASSEMBLY WEIGHT 1.5 LBS NOM,HYDRALUIC OIL DESIGN LBS
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
S
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5962-01-073-3951120-130-1POSSIBLE MATCH
MICROCIRCUIT,LINEAR
Possible match (shared part number)Bell Textron Inc
5961-01-172-65071901-1182POSSIBLE MATCH
SEMICONDUCTOR DEVICE,DIODE
Possible match (shared part number)Avago Technologies Us Inc Div Avago Technologies
5840-01-272-4453120130-1POSSIBLE MATCH
RADAR SET SUBASSEMBLY
Possible match (shared part number)L3harris Technologies, Inc Div Space & Airborne Systems
3020-01-273-768651990A002POSSIBLE MATCH
GEAR,WORM
Possible match (shared part number)Norriseal Norris Values Div Dba Dover Co
6545-01-463-0946UA G800POSSIBLE MATCH
DENTAL EQUIPMENT SE
Possible match (shared part number)Department of the Army U S Army Medical Material Agency Mcmr-Mmo-Sa
NSN 4820-01-024-2027 is a Valve Assembly,pressure Operated, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-024-2027?
NSN 4820-01-024-2027 has 2 manufacturer part numbers on file: 2628100 (Naval Sea Systems Command), 99-0002 (Bae Systems Land & Armaments L.p.).
What NSN replaces 4820-01-024-2027?
6 possible matches (shared part number, not a government interchangeability claim): 5962-01-073-3951, 5961-01-172-6507, 5840-01-272-4453. Verify interchangeability with system specifications before substitution.
What are the specifications of 2628100?
Key specifications for 2628100: General Characteristics Item Description: FOUR-WAY HYDRAULIC DIRECTIONAL CONTROL VALVE,PRESSURE OPERATED THREE POSITION SLIDING SPOOL TYPE,SPRING CENTERED TO NEUTRAL POSITION WITH PARTIALLY CLOSED CENTER,DESIGN MECHANICAL,SPOOL TRAVEL 0.312 IN. NOM,SPOOL DIA 0.500 IN. NOM,VALVE ASSEMBLY WEIGHT 1.5 LBS NOM,HYDRALUIC OIL DESIGN LBS. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-024-2027 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.