The Disk,valve, cataloged under National Stock Number 4820-01-229-4257, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-229-4257
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
1680-01-330-5117POSSIBLE MATCH
CONTROL LINE
Possible match (shared part number)
3020-01-399-0007161030POSSIBLE MATCH
CHAIN,LEAF
Possible match (shared part number)Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
5998-01-423-9786121639POSSIBLE MATCH
CIRCUIT CARD ASSEMBLY
Possible match (shared part number)Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
5365-01-541-15801610/30POSSIBLE MATCH
BUSHING BLANK
Possible match (shared part number)Imeco Inc
4820-01-593-6599161030POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
Possible match (shared part number)Avon Protection Systems Incorporated Dba Avon Protection Systems Inc
6505-01-605-3198NDC63323-0463-57POSSIBLE MATCH
BUPIVACAINE HYDROCHLORIDE AND EP
Possible match (shared part number)American Pharmaceutical Partners
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
161030
3/2Design control — primary reference
U.S. Government activity
121639
C/1Advisory reference — outside the item-of-supply concept
U.S. Government activity
PL-C-066 ITEM 12
5/9Secondary reference
U.S. Government activity
Related Parts
1680-01-330-5117POSSIBLE MATCH
CONTROL LINE
3020-01-399-0007POSSIBLE MATCH
CHAIN,LEAF
161030
5998-01-423-9786POSSIBLE MATCH
CIRCUIT CARD ASSEMBLY
121639
5365-01-541-1580POSSIBLE MATCH
BUSHING BLANK
1610/30
4820-01-593-6599POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
161030
6505-01-605-3198POSSIBLE MATCH
BUPIVACAINE HYDROCHLORIDE AND EP
NDC63323-0463-57
Frequently Asked Questions
What is NSN 4820-01-229-4257?
NSN 4820-01-229-4257 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-229-4257?
6 possible matches (shared part number, not a government interchangeability claim): 1680-01-330-5117, 3020-01-399-0007, 5998-01-423-9786. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-229-4257?
Key specifications for 4820-01-229-4257: Material: STEEL CORROSION RESISTING. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-229-4257 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.