PartsTable TECHNICAL DATA SHEET
NSN 4820-01-357-9834Government record, cited

Valve, Gate4820-01-357-9834

NSN 4820-01-357-9834 · NIIN 013579834 · Part number 12111-.50
Flowserve Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 63220
Government record, cited
NSN 4820-01-357-9834 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-357-9834. Manufacturer of record part number: 12111-.50.
Also searched as  4820-01-357-9834 · 4820013579834 · NIIN 013579834 · 01-357-9834 · FSC 4820 Valves, Nonpowered · CAGE 63220 · 12111-.50
Nearby stock numbers  ·
Features
  • Valve,gate — FSC 4820
  • Inlet Relationship with Outlet: IDENTICAL
  • Stem Type: RISING
  • Connection Type: THREADED INTERNAL PIPE
  • Valve Size: 0.500 INCHES IN
  • Bonnet Type: OUTSIDE SCREW-YOKE
  • Nominal Thread Size: 0.500 INCHES IN
  • Bonnet Attachment Method: BOLTED
Identification
  • NSN: 4820-01-357-9834
  • NIIN: 013579834
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 12111-.50
  • Manufacturer: Flowserve Inc
General Description

The Valve,gate, cataloged under National Stock Number 4820-01-357-9834, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Inc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-357-9834
Primary Part Number12111-.50
Item NameValve,gate
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerFlowserve Inc
StatusACTIVE
Inlet Relationship with OutletIDENTICAL
Stem TypeRISING
Connection TypeTHREADED INTERNAL PIPE
Valve Size0.500 INCHES IN
Bonnet TypeOUTSIDE SCREW-YOKE
Nominal Thread Size0.500 INCHES IN
Bonnet Attachment MethodBOLTED
MaterialSTEEL COMP 316 SEAT
MaterialSTEEL UNS K03504 BODY
MaterialSTEEL COMP 316 STEM
MaterialSTEEL COMP 316 DISK
Thread Series DesignatorNPT
Valve Operation MethodMANUAL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
12111-.50 PRIMARY Flowserve Inc (USA)

Frequently Asked Questions

What is NSN 4820-01-357-9834?

NSN 4820-01-357-9834 is a Valve,gate, manufactured by Flowserve Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-357-9834?

NSN 4820-01-357-9834 has 1 manufacturer part number on file: 12111-.50 (Flowserve Inc).

What are the specifications of 12111-.50?

Key specifications for 12111-.50: Inlet Relationship with Outlet: IDENTICAL; Stem Type: RISING; Connection Type: THREADED INTERNAL PIPE; Valve Size: 0.500 INCHES IN. 13 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-357-9834 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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