NSN 4820-01-633-8501 · NIIN 016338501 · Part number 120-88-16391
The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 1QZK3
Government record, cited
NSN 4820-01-633-8501 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-633-8501. Manufacturer of record part number: 120-88-16391.
Manufacturer of record: The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C
Identification
NSN: 4820-01-633-8501
NIIN: 016338501
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 120-88-16391
Manufacturer: The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C
General Description
The Guide,valve Stem, cataloged under National Stock Number 4820-01-633-8501, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C. 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
4820-01-633-8501
Primary Part Number
120-88-16391
Item Name
Guide,valve Stem
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C
Cleveland Gear Company, Inc. Dba Cleveland Gear Co (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 4820-01-633-8501?
NSN 4820-01-633-8501 is a Guide,valve Stem, manufactured by The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-633-8501?
NSN 4820-01-633-8501 has 2 manufacturer part numbers on file: 120-88-16391 (The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C), 1201DA-39 ITEM 29 (Cleveland Gear Company, Inc. Dba Cleveland Gear Co).
What are the specifications of 120-88-16391?
Key specifications for 120-88-16391: Material: COPPER ALLOY. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-633-8501 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.