The Pump Assy, cataloged under National Stock Number 4320-00-421-7019, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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
Pump Assy
FSC / FSG
4320 — Power and Hand Pumps (FSG 43)
Technical Specifications
Parameter
Value
NSN
4320-00-421-7019
Item Name
Pump Assy
FSC / FSG
4320 / 43 — Power and Hand Pumps
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5910-01-016-685918419POSSIBLE MATCH
CAPACITOR,FIXED,PAPER DIELECTRIC
Possible match (shared part number)Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5305-01-273-827218419POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)Sps Technologies, Llc Dba PB Fasteners
6510-01-587-8425NON260301POSSIBLE MATCH
ADHESIVE TAPE,SURGICAL
Possible match (shared part number)Medline Industries, Lp
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
18419
3/2Design control — primary reference
U.S. Government activity
Related Parts
5910-01-016-6859POSSIBLE MATCH
CAPACITOR,FIXED,PAPER DIELECTRIC
18419
5305-01-273-8272POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
18419
6510-01-587-8425POSSIBLE MATCH
ADHESIVE TAPE,SURGICAL
NON260301
Frequently Asked Questions
What is NSN 4320-00-421-7019?
NSN 4320-00-421-7019 is a Pump Assy, classified under FSC 4320, Power and Hand Pumps. Status: active.
What NSN replaces 4320-00-421-7019?
3 possible matches (shared part number, not a government interchangeability claim): 5910-01-016-6859, 5305-01-273-8272, 6510-01-587-8425. Verify interchangeability with system specifications before substitution.
Is NSN 4320-00-421-7019 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.