Ring, Wearing4320-01-543-1111

NSN 4320-01-543-1111 · NIIN 015431111 · Part number N-15939

Circor Naval Solutions Llc Dba Warren Pumps · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 63857

Government record, cited

NSN 4320-01-543-1111 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-543-1111. Manufacturer of record part number: N-15939.

Also searched as 4320-01-543-1111 · 4320015431111 · NIIN 015431111 · 01-543-1111 · FSC 4320 Power and Hand Pumps · CAGE 63857 · N-15939 · PL-999F0929 FIND NO 102 · 999F0929

Nearby stock numbers ← 4320-01-543-1107 Ring, Wearing · 4320-01-543-1181 Pump Unit, Centrifugal →

Features

Ring,wearing — FSC 4320
2 manufacturer part numbers on file
Manufacturer of record: Circor Naval Solutions Llc Dba Warren Pumps

Identification

NSN: 4320-01-543-1111
NIIN: 015431111
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: N-15939
Manufacturer: Circor Naval Solutions Llc Dba Warren Pumps

General Description

The Ring,wearing, cataloged under National Stock Number 4320-01-543-1111, 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. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4320-01-543-1111
Primary Part Number	N-15939
Item Name	Ring,wearing
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Circor Naval Solutions Llc Dba Warren 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)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
PL-999F0929 FIND NO 102	Circor Naval Solutions Llc Dba Warren Pumps (USA)
N-15939 PRIMARY	Circor Naval Solutions Llc Dba Warren Pumps (USA)

Reference documents

Reference	Meaning
999F0929	D/9 Drawing number reference only Circor Naval Solutions Llc Dba Warren Pumps

Frequently Asked Questions

What is NSN 4320-01-543-1111?

NSN 4320-01-543-1111 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 4320-01-543-1111?

NSN 4320-01-543-1111 has 2 manufacturer part numbers on file: PL-999F0929 FIND NO 102 (Circor Naval Solutions Llc Dba Warren Pumps), N-15939 (Circor Naval Solutions Llc Dba Warren Pumps).

What are the specifications of N-15939?

Key specifications for N-15939: Special Features: RING, IMP, UPPER SECOND STAGE, OVERSIZE; MATERIAL BRONZE; MATERIAL SPEC ASTM B584 ALLOY C90300; WEIGHT 3.5 LBS.; USED ON PUMP TYPE 5-2 CV-18 W/SPECIAL SLEEVE BEARING W; End Item Identification: PUMP, IN PORT DUMP CONDENSATE. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-543-1111 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.

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