PartsTable TECHNICAL DATA SHEET
NSN 4820-01-242-6435Government record, cited

Disk, Valve4820-01-242-6435

NSN 4820-01-242-6435 · NIIN 012426435 · Part number 51310D172
Dover Resources, Inc. Div Norriseal · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 1NB39
Government record, cited
NSN 4820-01-242-6435 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-242-6435. Manufacturer of record part number: 51310D172.
Also searched as  4820-01-242-6435 · 4820012426435 · NIIN 012426435 · 01-242-6435 · FSC 4820 Valves, Nonpowered · CAGE 1NB39 · 51310D172
Nearby stock numbers  ·
Features
  • Disk,valve — FSC 4820
  • Material: NICKEL ALLOY
  • 1 manufacturer part number on file
  • Manufacturer of record: Dover Resources, Inc. Div Norriseal
Identification
  • NSN: 4820-01-242-6435
  • NIIN: 012426435
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 51310D172
  • Manufacturer: Dover Resources, Inc. Div Norriseal
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-242-6435, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dover Resources, Inc. Div Norriseal. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-242-6435
Primary Part Number51310D172
Item NameDisk,valve
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerDover Resources, Inc. Div Norriseal
StatusACTIVE
MaterialNICKEL ALLOY
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
51310D172 PRIMARY Dover Resources, Inc. Div Norriseal (USA)
Reference documents
ReferenceMeaning
51310D172 5/9 Secondary reference
U.S. Government activity
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.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-242-6435?

NSN 4820-01-242-6435 is a Disk,valve, manufactured by Dover Resources, Inc. Div Norriseal, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-242-6435?

NSN 4820-01-242-6435 has 1 manufacturer part number on file: 51310D172 (Dover Resources, Inc. Div Norriseal).

What are the specifications of 51310D172?

Key specifications for 51310D172: Special Features: FOR 3-1/2 IN. BUTTERFLY VALVE IN; Material: NICKEL ALLOY. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-242-6435 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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