NSN 4820-00-887-0328 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-887-0328. Manufacturer of record part number: 556946.
Also searched as4820-00-887-0328 ·
4820008870328 ·
NIIN 008870328 ·
00-887-0328 ·
FSC 4820 Valves, Nonpowered · CAGE 73030 · 556946
Flange Seat to Disk End Height: 1.695 INCHES NOMINAL IN
Style Designator: POPPET
Material Document and Classification: QQ-S-763, CLASS 440C, COND A FED SPEC SINGLE MATERIAL RESPONSE
Inside Diameter: 0.100 INCHES MAXIMUM IN
Material: STEEL COMP 440C
1 manufacturer part number on file
Manufacturer of record: Hamilton Sundstrand Corporation Dba Collins Aerospace
Identification
NSN: 4820-00-887-0328
NIIN: 008870328
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 556946
Manufacturer: Hamilton Sundstrand Corporation Dba Collins Aerospace
General Description
The Disk,valve, cataloged under National Stock Number 4820-00-887-0328, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 5 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
Parameter
Value
NSN
4820-00-887-0328
Primary Part Number
556946
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Hamilton Sundstrand Corporation Dba Collins Aerospace
Status
ACTIVE
Flange Seat to Disk End Height
1.695 INCHES NOMINAL IN
Style Designator
POPPET
Material Document and Classification
QQ-S-763, CLASS 440C, COND A FED SPEC SINGLE MATERIAL RESPONSE
Hamilton Sundstrand Corporation Dba Collins Aerospace (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 4820-00-887-0328?
NSN 4820-00-887-0328 is a Disk,valve, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-00-887-0328?
NSN 4820-00-887-0328 has 1 manufacturer part number on file: 556946 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
What are the specifications of 556946?
Key specifications for 556946: Flange Seat to Disk End Height: 1.695 INCHES NOMINAL IN; Overall Height: 2.090 INCHES NOMINAL IN; Style Designator: POPPET; Material Document and Classification: QQ-S-763, CLASS 440C, COND A FED SPEC SINGLE MATERIAL RESPONSE. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4820-00-887-0328 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.