NSN 4820-01-690-5140 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-690-5140. Manufacturer of record part number: C5534.
Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size: 0.5 INCHES ALL ENDS IN
Media for Which Designed: AIR SINGLE RESPONSE
Thread Series Designator: NPTF ALL ENDS
2 manufacturer part numbers on file
Manufacturer of record: Armstrong International Inc Dba Armstrong Machine Works
Identification
NSN: 4820-01-690-5140
NIIN: 016905140
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: C5534
Manufacturer: Armstrong International Inc Dba Armstrong Machine Works
General Description
The Valve,float, cataloged under National Stock Number 4820-01-690-5140, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Armstrong International Inc Dba Armstrong Machine Works. Government technical data includes 5 specifications, 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
4820-01-690-5140
Primary Part Number
C5534
Item Name
Valve,float
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Armstrong International Inc Dba Armstrong Machine Works
Status
ACTIVE
Connection Type
THREADED INTERNAL PIPE ALL ENDS
Operating Pressure
150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Armstrong International Inc Dba Armstrong Machine Works (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 4820-01-690-5140?
NSN 4820-01-690-5140 is a Valve,float, manufactured by Armstrong International Inc Dba Armstrong Machine Works, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-690-5140?
NSN 4820-01-690-5140 has 2 manufacturer part numbers on file: 3242653 (Bae Systems Australia Defence Pty Ltd), C5534 (Armstrong International Inc Dba Armstrong Machine Works).
What are the specifications of C5534?
Key specifications for C5534: Connection Type: THREADED INTERNAL PIPE ALL ENDS; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Nominal Thread Size: 0.5 INCHES ALL ENDS IN; Media for Which Designed: AIR SINGLE RESPONSE. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-690-5140 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.