NSN 4820-00-422-1940 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-422-1940. Manufacturer of record part number: 10749.
Also searched as4820-00-422-1940 ·
4820004221940 ·
NIIN 004221940 ·
00-422-1940 ·
FSC 4820 Valves, Nonpowered · CAGE 0BTV3 · 10749
Manufacturer of record: Reidville Hydraulics & Mfg Inc
Identification
NSN: 4820-00-422-1940
NIIN: 004221940
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 10749
Manufacturer: Reidville Hydraulics & Mfg Inc
General Description
The Seat,valve, cataloged under National Stock Number 4820-00-422-1940, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Reidville Hydraulics & Mfg Inc. Government technical data includes 5 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. 5 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
4820-00-422-1940
Primary Part Number
10749
Item Name
Seat,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Reidville Hydraulics & Mfg Inc
Status
ACTIVE
Body Outside Diameter
2.317 INCHES NOMINAL IN
Style Designator
PLAIN
Body Inside Diameter
1.879 INCHES NOMINAL IN
Material
STEEL OVERALL
Seating Surface Shape
FLAT
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 Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4130-01-065-1937POSSIBLE MATCH
SUPPORT,DRIER
Possible match (shared part number)
6115-01-102-3063104260A1RPOSSIBLE MATCH
GENERATOR,ALTERNATING CURRENT
Possible match (shared part number)Cnh Industrial America Llc Dba Cnh America
6220-01-334-830010749POSSIBLE MATCH
PANEL,INDICATING,LIGHT TRANSMITT
Possible match (shared part number)Airco Industries, Inc. Dba Photo Etch Div Photo Etch
5360-01-509-600613005723POSSIBLE MATCH
SPRING,HELICAL,COMPRESSION
Possible match (shared part number)Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
NSN 4820-00-422-1940 is a Seat,valve, manufactured by Reidville Hydraulics & Mfg Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-00-422-1940?
NSN 4820-00-422-1940 has 2 manufacturer part numbers on file: 10749 (Reidville Hydraulics & Mfg Inc), 10749 (Eaton Aerospace, Llc Dba Jackson South).
What NSN replaces 4820-00-422-1940?
5 possible matches (shared part number, not a government interchangeability claim): 4130-01-065-1937, 6115-01-102-3063, 6220-01-334-8300. Verify interchangeability with system specifications before substitution.
What are the specifications of 10749?
Key specifications for 10749: Overall Height: 0.598 INCHES NOMINAL IN; Body Outside Diameter: 2.317 INCHES NOMINAL IN; Style Designator: PLAIN; Body Inside Diameter: 1.879 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4820-00-422-1940 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.