NSN 4820-01-656-6557 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-656-6557. Manufacturer of record part number: 17895000.
Manufacturer of record: Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company
Identification
NSN: 4820-01-656-6557
NIIN: 016566557
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 17895000
Manufacturer: Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company
General Description
The Guide,diaphragm,valve, cataloged under National Stock Number 4820-01-656-6557, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company. 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
Guide,diaphragm,valve
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company (CAGE 20266); Oshkosh Defense Llc (CAGE 75Q65)
Technical Specifications
Parameter
Value
NSN
4820-01-656-6557
Primary Part Number
17895000
Item Name
Guide,diaphragm,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company
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 4820-01-656-6557?
NSN 4820-01-656-6557 is a Guide,diaphragm,valve, manufactured by Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-656-6557?
NSN 4820-01-656-6557 has 2 manufacturer part numbers on file: 17895000 (Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company), 4234769 (Oshkosh Defense Llc).
Is NSN 4820-01-656-6557 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.