NSN 4820-01-556-9473 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-556-9473. Manufacturer of record part number: 525-C5XX-40XFJ.
The Flange,gland,valve, cataloged under National Stock Number 4820-01-556-9473, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sfc Valve Corporation. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-556-9473
Primary Part Number
525-C5XX-40XFJ
Item Name
Flange,gland,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Sfc Valve Corporation
Status
ACTIVE
Valve Size
0.750 INCHES IN
Valve Type
GLOBE
Material
STEEL CORROSION RESISTING
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
⇄Related Items11
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-558-5557525-S711-XM-BPOSSIBLE MATCH
VALVE,GLOBE
Possible match (shared part number)Sfc Valve Corporation
4820-01-558-5970525-S7XX-03XFKPOSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Sfc Valve Corporation
4820-01-558-5973525-S7XX-05LFKLPOSSIBLE MATCH
STEM,NEEDLE VALVE
Possible match (shared part number)Sfc Valve Corporation
4820-01-558-5975525-C7XX-40XFKPOSSIBLE MATCH
FLANGE,GLAND,VALVE
Possible match (shared part number)Sfc Valve Corporation
4820-01-558-5981525-S511-XM-BPOSSIBLE MATCH
VALVE,GLOBE
Possible match (shared part number)Sfc Valve Corporation
4820-01-558-5993525-S5XX-03XFKPOSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Sfc Valve Corporation
4820-01-558-5997525-S5XX-05LFKPOSSIBLE MATCH
STEM,NEEDLE VALVE
Possible match (shared part number)Sfc Valve Corporation
5330-01-558-6099525-S7XX-65XFKPOSSIBLE MATCH
PACKING,PREFORMED
Possible match (shared part number)Sfc Valve Corporation
5330-01-558-6117525-C7XX-72XFMPOSSIBLE MATCH
GASKET,SPIRAL WOUND
Possible match (shared part number)Sfc Valve Corporation
5330-01-558-6138525-S5XX-65XFKPOSSIBLE MATCH
PACKING,PREFORMED
Possible match (shared part number)Sfc Valve Corporation
NSN 4820-01-556-9473 is a Flange,gland,valve, manufactured by Sfc Valve Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-556-9473?
NSN 4820-01-556-9473 has 2 manufacturer part numbers on file: 525-C5XX-40XFJ (Sfc Valve Corporation), 525-SX11-XM-B ITEM 40 .75IN (Sfc Valve Corporation).
What NSN replaces 4820-01-556-9473?
11 possible matches (shared part number, not a government interchangeability claim): 4820-01-558-5557, 4820-01-558-5970, 4820-01-558-5973. Verify interchangeability with system specifications before substitution.
What are the specifications of 525-C5XX-40XFJ?
Key specifications for 525-C5XX-40XFJ: Valve Size: 0.750 INCHES IN; Special Features: NHA: 4820-01-556-9460; VALVE,STOP AND STOP CHECK; Valve Type: GLOBE; End Item Identification: NEW CONSTRUCTION LCS2. 3 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-556-9473 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.