NSN 4320-01-306-3941 · NIIN 013063941 · Part number AP3
Circor Naval Solutions Llc Dba Warren Pumps · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 63857
Government record, cited
NSN 4320-01-306-3941 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-306-3941. Manufacturer of record part number: AP3.
Also searched as4320-01-306-3941 ·
4320013063941 ·
NIIN 013063941 ·
01-306-3941 ·
FSC 4320 Power and Hand Pumps · CAGE 63857 · AP3 · R-916 PIECE 9
The Ring,wearing, cataloged under National Stock Number 4320-01-306-3941, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
4320-01-306-3941
Primary Part Number
AP3
Item Name
Ring,wearing
FSC / FSG
4320 / 43 — Power and Hand Pumps
Manufacturer
Circor Naval Solutions Llc Dba Warren Pumps
Status
ACTIVE
Material
COPPER ALLOY
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 Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5920-01-422-3695POSSIBLE MATCH
FUSEHOLDER,BLOCK
Possible match (shared part number)
1660-01-492-7768AP-3POSSIBLE MATCH
FILTER ELEMENT,AIR CONDITIONING
Possible match (shared part number)Rhine Air, Inc
3110-01-494-3361AP-3POSSIBLE MATCH
PLATE,RETAINING,BEARING
Possible match (shared part number)Roller Bearing Co of America, Inc Div Pic Design
4320-01-572-0936AP-3POSSIBLE MATCH
NOZZLE,MULTI-JET
Possible match (shared part number)Vita Motivator Co Inc Div Vita Motivator Company
NSN 4320-01-306-3941 is a Ring,wearing, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4320, Power and Hand Pumps. Status: active.
What part numbers are listed for NSN 4320-01-306-3941?
NSN 4320-01-306-3941 has 1 manufacturer part number on file: AP3 (Circor Naval Solutions Llc Dba Warren Pumps).
What NSN replaces 4320-01-306-3941?
5 possible matches (shared part number, not a government interchangeability claim): 5920-01-422-3695, 1660-01-492-7768, 3110-01-494-3361. Verify interchangeability with system specifications before substitution.
What are the specifications of AP3?
Key specifications for AP3: End Item Identification: WARREN PUMP 20 IN VP IN; Material: COPPER ALLOY. 1 specification is documented in the U.S. Government catalog.
Is NSN 4320-01-306-3941 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.