NSN 4820-01-055-0072 · NIIN 010550072 · Part number 42342BA
Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 73760
Government record, cited
NSN 4820-01-055-0072 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-055-0072. Manufacturer of record part number: 42342BA.
Also searched as4820-01-055-0072 ·
4820010550072 ·
NIIN 010550072 ·
01-055-0072 ·
FSC 4820 Valves, Nonpowered · CAGE 73760 · 42342BA
General Characteristics Item Description: MATERIAL,42342B CASTING
2 manufacturer part numbers on file
Manufacturer of record: Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S
Identification
NSN: 4820-01-055-0072
NIIN: 010550072
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 42342BA
Manufacturer: Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S
General Description
The Flapper,valve, cataloged under National Stock Number 4820-01-055-0072, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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
4820-01-055-0072
Primary Part Number
42342BA
Item Name
Flapper,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S
Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (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 4820-01-055-0072?
NSN 4820-01-055-0072 is a Flapper,valve, manufactured by Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-055-0072?
NSN 4820-01-055-0072 has 2 manufacturer part numbers on file: 42342BA (Ripa Engineering Corp), 42342BA (Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S).
What are the specifications of 42342BA?
Key specifications for 42342BA: General Characteristics Item Description: MATERIAL,42342B CASTING; End Item Identification: F16 A/C. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-055-0072 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.
What is the DEMIL code for NSN 4820-01-055-0072?
NSN 4820-01-055-0072 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.