The Valve,safety Relief, cataloged under National Stock Number 4820-01-464-1573, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Valve,safety Relief
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Technical Specifications
Parameter
Value
NSN
4820-01-464-1573
Item Name
Valve,safety Relief
FSC / FSG
4820 / 48 — Valves, Nonpowered
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
⇄Related Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-467-4083BAMAA04MAAPOSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Dante Valve Company
4820-01-479-5388BASAA07SAAPOSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Dante Valve Company
4820-01-507-7109BAMAA04SAAPOSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Dante Valve Company
4820-01-510-5691BXMAA03MAAPOSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Dante Valve Company
4820-01-519-3579POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)
4820-01-542-8223CD1400-11POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Dante Valve Company
4820-01-545-4542D1400 ASSY BFSAA07SAA/CD1400-17POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Dante Valve Company
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
BBSAA04SAA
3/9Design control — primary reference
Danco Valve Company
BBSAA04SAA-30PS
C/1Advisory reference — outside the item-of-supply concept
Danco Valve Company
D1400
D/9Drawing number reference only
Danco Valve Company
D1400 REV K
5/9Secondary reference
Danco Valve Company
D1400 REV K
C/1Advisory reference — outside the item-of-supply concept
Dante Valve Company
BBSAA04SAA
C/1Advisory reference — outside the item-of-supply concept
Dante Valve Company
Related Parts
4820-01-467-4083POSSIBLE MATCH
VALVE,SAFETY RELIEF
BAMAA04MAA
4820-01-479-5388POSSIBLE MATCH
VALVE,SAFETY RELIEF
BASAA07SAA
4820-01-507-7109POSSIBLE MATCH
VALVE,SAFETY RELIEF
BAMAA04SAA
4820-01-510-5691POSSIBLE MATCH
VALVE,SAFETY RELIEF
BXMAA03MAA
4820-01-519-3579POSSIBLE MATCH
VALVE,SAFETY RELIEF
4820-01-542-8223POSSIBLE MATCH
VALVE,SAFETY RELIEF
CD1400-11
4820-01-545-4542POSSIBLE MATCH
VALVE,SAFETY RELIEF
D1400 ASSY BFSAA07SAA/CD1400-17
Frequently Asked Questions
What is NSN 4820-01-464-1573?
NSN 4820-01-464-1573 is a Valve,safety Relief, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-464-1573?
7 possible matches (shared part number, not a government interchangeability claim): 4820-01-467-4083, 4820-01-479-5388, 4820-01-507-7109. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-464-1573 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.