NSN 4820-00-437-8149 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-437-8149. Manufacturer of record part number: SS1-075.
Manufacturer of record: International Valve Corp Dba Check-All Valve Mfg. Co.
Identification
NSN: 4820-00-437-8149
NIIN: 004378149
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: SS1-075
Manufacturer: International Valve Corp Dba Check-All Valve Mfg. Co.
General Description
The Valve,insert Check, cataloged under National Stock Number 4820-00-437-8149, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is International Valve Corp Dba Check-All Valve Mfg. Co.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name
Valve,insert Check
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
International Valve Corp Dba Check-All Valve Mfg. Co. (CAGE 28396); Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (CAGE 30003)
Technical Specifications
Parameter
Value
NSN
4820-00-437-8149
Primary Part Number
SS1-075
Item Name
Valve,insert Check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
International Valve Corp Dba Check-All Valve Mfg. Co.
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (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 4820-00-437-8149?
NSN 4820-00-437-8149 is a Valve,insert Check, manufactured by International Valve Corp Dba Check-All Valve Mfg. Co., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-00-437-8149?
NSN 4820-00-437-8149 has 2 manufacturer part numbers on file: SS1-075 (International Valve Corp Dba Check-All Valve Mfg. Co.), 2518949 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Is NSN 4820-00-437-8149 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.