NSN 4210-00-397-7073 · NIIN 003977073 · Part number 20WR11
Ross Valve Manufacturing Company, Inc. Div Ross Valve Mfg Co. · FSC 4210 — Firefighting Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment · CAGE 77653
Government record, cited
NSN 4210-00-397-7073 — this item is cataloged by the U.S. Government under National Stock Number 4210-00-397-7073. Manufacturer of record part number: 20WR11.
Also searched as4210-00-397-7073 ·
4210003977073 ·
NIIN 003977073 ·
00-397-7073 ·
FSC 4210 Firefighting Equipment · CAGE 77653 · 20WR11
Nearby stock numbers← 4210-00-397-7070
·
4210-00-397-7074 Pilot Valve →
Features
Diaphragm Set — FSC 4210
1 manufacturer part number on file
Manufacturer of record: Ross Valve Manufacturing Company, Inc. Div Ross Valve Mfg Co.
Identification
NSN: 4210-00-397-7073
NIIN: 003977073
FSC: 4210 — Firefighting Equipment
FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
Primary part number: 20WR11
Manufacturer: Ross Valve Manufacturing Company, Inc. Div Ross Valve Mfg Co.
General Description
The Diaphragm Set, cataloged under National Stock Number 4210-00-397-7073, is classified within Federal Supply Class 4210 (Firefighting Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Ross Valve Manufacturing Company, Inc. Div Ross Valve Mfg Co.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name
Diaphragm Set
FSC / FSG
4210 — Firefighting Equipment (FSG 42)
Manufacturers
Ross Valve Manufacturing Company, Inc. Div Ross Valve Mfg Co. (CAGE 77653)
Technical Specifications
Parameter
Value
NSN
4210-00-397-7073
Primary Part Number
20WR11
Item Name
Diaphragm Set
FSC / FSG
4210 / 42 — Firefighting Equipment
Manufacturer
Ross Valve Manufacturing Company, Inc. Div Ross Valve Mfg Co.
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Ross Valve Manufacturing Company, Inc. Div Ross Valve Mfg Co. (USA)
No interchangeability data on file.
Other items in FSC 4210 — Firefighting Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4210-00-001-3525
CYLINDER ASSEMBLY,LIQUID
4210-00-001-3526
CYLINDER ASSEMBLY,LIQUID
4210-00-003-6976
4210-00-003-6976 · Item name not on file
4210-00-004-8316
NOZZLE,FIRE EQUIPMENT
4210-00-005-1080
4210-00-005-1080 · Item name not on file
4210-00-005-7152
4210-00-005-7152 · Item name not on file
4210-00-005-7684
4210-00-005-7684 · Item name not on file
4210-00-006-6244
4210-00-006-6244 · Item name not on file
Frequently Asked Questions
What is NSN 4210-00-397-7073?
NSN 4210-00-397-7073 is a Diaphragm Set, manufactured by Ross Valve Manufacturing Company, Inc. Div Ross Valve Mfg Co., classified under FSC 4210, Firefighting Equipment. Status: active.
What part numbers are listed for NSN 4210-00-397-7073?
NSN 4210-00-397-7073 has 1 manufacturer part number on file: 20WR11 (Ross Valve Manufacturing Company, Inc. Div Ross Valve Mfg Co.).
Is NSN 4210-00-397-7073 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.