PartsTable TECHNICAL DATA SHEET
NSN 4820-00-774-9878Government record, cited

Disk, Sealing4820-00-774-9878

NSN 4820-00-774-9878 · NIIN 007749878 · Part number DYLZ1327
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 05624
Government record, cited
NSN 4820-00-774-9878 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-774-9878. Manufacturer of record part number: DYLZ1327.
Also searched as  4820-00-774-9878 · 4820007749878 · NIIN 007749878 · 00-774-9878 · FSC 4820 Valves, Nonpowered · CAGE 05624 · DYLZ1327
Nearby stock numbers  ·
Features
  • Disk,sealing — FSC 4820
  • FSC Application Data: VALVE,GATE,NONPOWERED
  • General Characteristics Item Description: CHROME PLATED,1.240 TO 1.260 IN. LG,0.987 TO 0.997 IN. W,0.094 IN. THK IN
  • 1 manufacturer part number on file
  • Manufacturer of record: Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
Identification
  • NSN: 4820-00-774-9878
  • NIIN: 007749878
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: DYLZ1327
  • Manufacturer: Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
General Description

The Disk,sealing, cataloged under National Stock Number 4820-00-774-9878, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ge Aviation Systems Llc Dba Ge Aviation Systems Llc. Government technical data includes 2 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
NSN4820-00-774-9878
Primary Part NumberDYLZ1327
Item NameDisk,sealing
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerGe Aviation Systems Llc Dba Ge Aviation Systems Llc
StatusACTIVE
FSC Application DataVALVE,GATE,NONPOWERED
General Characteristics Item DescriptionCHROME PLATED,1.240 TO 1.260 IN. LG,0.987 TO 0.997 IN. W,0.094 IN. THK IN
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
DYLZ1327 PRIMARY Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (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.
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 4820-00-774-9878?

NSN 4820-00-774-9878 is a Disk,sealing, manufactured by Ge Aviation Systems Llc Dba Ge Aviation Systems Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-00-774-9878?

NSN 4820-00-774-9878 has 1 manufacturer part number on file: DYLZ1327 (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc).

What are the specifications of DYLZ1327?

Key specifications for DYLZ1327: FSC Application Data: VALVE,GATE,NONPOWERED; General Characteristics Item Description: CHROME PLATED,1.240 TO 1.260 IN. LG,0.987 TO 0.997 IN. W,0.094 IN. THK IN; End Item Identification: 4820007749877 SYLB7453 VALVE. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-00-774-9878 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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