Valve, Linear, Directional Control 4820-01-421-1687 NSN 4820-01-421-1687 · NIIN 014211687 · Part number 21137-002
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE
78062
NSN 4820-01-421-1687 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-421-1687. Manufacturer of record part number: 21137-002 .
Also searched as
4820-01-421-1687 ·
4820014211687 ·
NIIN
014211687 ·
01-421-1687 ·
FSC
4820 Valves, Nonpowered · CAGE
78062 ·
21137-002 ·
211037453
4820-01-421-1687 — Valves, Nonpowered
Features
Valve,linear,directional Control — FSC 4820 2 manufacturer part numbers on file Manufacturer of record: Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Identification
NSN: 4820-01-421-1687
NIIN: 014211687
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 21137-002
Manufacturer: Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
General Description
The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-421-1687, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter Value NSN 4820-01-421-1687 Primary Part Number 21137-002 Item Name Valve,linear,directional Control FSC / FSG 4820 / 48 — Valves, Nonpowered Manufacturer Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace Status ACTIVE
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
Cross-Reference Index
Part Number Manufacturer
21137-002 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
211037453 Naval Sea Systems Command (USA)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
Frequently Asked Questions
What is NSN 4820-01-421-1687?
NSN 4820-01-421-1687 is a Valve,linear,directional Control, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-421-1687?
NSN 4820-01-421-1687 has 2 manufacturer part numbers on file: 21137-002 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 211037453 (Naval Sea Systems Command).
What are the specifications of 21137-002?
Key specifications for 21137-002: End Item Identification: SEAWOLF CLASS SSN. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-421-1687 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.
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