Diaphragm, Valve, Flat 4820-01-555-9102 NSN 4820-01-555-9102 · NIIN 015559102 · Part number B21747
Bellofram Corporation · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 01170
NSN 4820-01-555-9102 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-555-9102. Manufacturer of record part number: B21747 .
Also searched as
4820-01-555-9102 ·
4820015559102 ·
NIIN 015559102 ·
01-555-9102 ·
FSC 4820 Valves, Nonpowered · CAGE 01170 · B21747 · 101594-0001 · 284977-0001 ITEM NO.28 · 101594-0001
Nearby stock numbers
← 4820-01-555-9057 Parts Kit, Valve
·
4820-01-555-9267 Regulating Element, Flow, Valve →
4820-01-555-9102 — Valves, Nonpowered
Features
Diaphragm,valve,flat — FSC 4820 2 manufacturer part numbers on file Manufacturer of record: Bellofram Corporation
Identification
NSN: 4820-01-555-9102
NIIN: 015559102
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: B21747
Manufacturer: Bellofram Corporation
General Description
The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-555-9102, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bellofram Corporation. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Catalog Facts
Item Name Diaphragm,valve,flat FSC / FSG 4820 — Valves, Nonpowered (FSG 48) Manufacturers Bellofram Corporation (CAGE 01170)
Technical Specifications
Parameter Value NSN 4820-01-555-9102 Primary Part Number B21747 Item Name Diaphragm,valve,flat FSC / FSG 4820 / 48 — Valves, Nonpowered Manufacturer Bellofram Corporation Status ACTIVE
Lifecycle & Compliance
Acquisition Status ACTIVE DEMIL Code DEMIL A — No Demilitarization Required Hazard No hazard code in the DLA record (HMIC N) Criticality Code X
Cross-Reference Index
Part Number Manufacturer
B21747 PRIMARY Bellofram Corporation (USA)
101594-0001 Bellofram Corporation (USA)
Reference documents
Reference Meaning
101594-0001
5/2 Secondary reference U.S. Government activity
284977-0001 ITEM NO.28
5/1 Secondary reference U.S. Government activity
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 4820-01-555-9102?
NSN 4820-01-555-9102 is a Diaphragm,valve,flat, manufactured by Bellofram Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-555-9102?
NSN 4820-01-555-9102 has 2 manufacturer part numbers on file: B21747 (Bellofram Corporation), 101594-0001 (Bellofram Corporation).
Is NSN 4820-01-555-9102 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.
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