PartsTable TECHNICAL DATA SHEET
NSN 4320-01-052-2734Government record, cited

Ring, Wearing4320-01-052-2734

NSN 4320-01-052-2734 · NIIN 010522734 · Part number 679A0007-C041A
Circor Naval Solutions Llc Dba Warren Pumps · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 63857
Government record, cited
NSN 4320-01-052-2734 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-052-2734. Manufacturer of record part number: 679A0007-C041A.
Also searched as  4320-01-052-2734 · 4320010522734 · NIIN 010522734 · 01-052-2734 · FSC 4320 Power and Hand Pumps · CAGE 63857 · 679A0007-C041A · KMC-679A0007-C041A · SMS-679A0007-C041A · 999R0501 · 679A0007
Nearby stock numbers  ·
Features
  • Ring,wearing — FSC 4320
  • Flange Diameter: 2.975 INCHES NOMINAL IN
  • Corner Shape: SQUARE ALL CORNERS
  • Body Style: EXTERNAL FLANGE
  • Body Outside Diameter: 2.750 INCHES NOMINAL IN
  • Left Side Flange Thickness: 0.190 INCHES NOMINAL IN
  • Body Inside Diameter: 2.296 INCHES NOMINAL IN
  • Material: COPPER ALLOY
Identification
  • NSN: 4320-01-052-2734
  • NIIN: 010522734
  • FSC: 4320 — Power and Hand Pumps
  • FSG: 43 — Pumps and Compressors
  • Primary part number: 679A0007-C041A
  • Manufacturer: Circor Naval Solutions Llc Dba Warren Pumps
General Description

The Ring,wearing, cataloged under National Stock Number 4320-01-052-2734, 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 7 specifications, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-052-2734
Primary Part Number679A0007-C041A
Item NameRing,wearing
FSC / FSG4320 / 43 — Power and Hand Pumps
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
Flange Diameter2.975 INCHES NOMINAL IN
Corner ShapeSQUARE ALL CORNERS
Body StyleEXTERNAL FLANGE
Body Outside Diameter2.750 INCHES NOMINAL IN
Left Side Flange Thickness0.190 INCHES NOMINAL IN
Body Inside Diameter2.296 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5365-01-060-8918726A0004-D040A POSSIBLE MATCH
BUSHING,CHANNEL RING
Possible match (shared part number)Circor Naval Solutions Llc Dba Warren Pumps
4320-01-060-9694695D0033C141A POSSIBLE MATCH
CENTER SECTION,PUMP
Possible match (shared part number)Circor Naval Solutions Llc Dba Warren Pumps
4320-01-060-9695654B0311D040A POSSIBLE MATCH
CASE RING,PUMP
Possible match (shared part number)Circor Naval Solutions Llc Dba Warren Pumps
4320-01-062-8019725D0041-C141A POSSIBLE MATCH
RING,WEARING
Possible match (shared part number)Circor Naval Solutions Llc Dba Warren Pumps
5365-01-062-8020726A0002-D040A POSSIBLE MATCH
BUSHING,CHANNEL RING
Possible match (shared part number)Circor Naval Solutions Llc Dba Warren Pumps
4320-01-139-2729 POSSIBLE MATCH
PUMP,CENTRIFUGAL
Possible match (shared part number)
4730-01-215-8753999R0501 PIECE 105 POSSIBLE MATCH
CUP,OIL,LUBRICATING
Possible match (shared part number)Circor Naval Solutions Llc Dba Warren Pumps
4320-01-505-0957725D0064 POSSIBLE MATCH
RING,WEARING
Possible match (shared part number)Circor Naval Solutions Llc Dba Warren Pumps
Cross-Reference Index
Part NumberManufacturer
679A0007-C041A PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
Reference documents
ReferenceMeaning
KMC-679A0007-C041A 5/9 Secondary reference
Krobach Mfg. Corp. Dba Krobach Manufacturing Corp
SMS-679A0007-C041A 5/9 Secondary reference
Salem Manufacturing & Sales Inc Div Salem Manufacturing and Sales Inc
999R0501 D/9 Drawing number reference only
Circor Naval Solutions Llc Dba Warren Pumps
679A0007 5/9 Secondary reference
Circor Naval Solutions Llc Dba Warren Pumps
Related Parts
5365-01-060-8918POSSIBLE MATCH
BUSHING,CHANNEL RING
726A0004-D040A
4320-01-060-9694POSSIBLE MATCH
CENTER SECTION,PUMP
695D0033C141A
4320-01-060-9695POSSIBLE MATCH
CASE RING,PUMP
654B0311D040A
4320-01-062-8019POSSIBLE MATCH
RING,WEARING
725D0041-C141A
5365-01-062-8020POSSIBLE MATCH
BUSHING,CHANNEL RING
726A0002-D040A
4320-01-139-2729POSSIBLE MATCH
PUMP,CENTRIFUGAL
4730-01-215-8753POSSIBLE MATCH
CUP,OIL,LUBRICATING
999R0501 PIECE 105
4320-01-505-0957POSSIBLE MATCH
RING,WEARING
725D0064

Frequently Asked Questions

What is NSN 4320-01-052-2734?

NSN 4320-01-052-2734 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 4320-01-052-2734?

NSN 4320-01-052-2734 has 1 manufacturer part number on file: 679A0007-C041A (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 4320-01-052-2734?

8 possible matches (shared part number, not a government interchangeability claim): 5365-01-060-8918, 4320-01-060-9694, 4320-01-060-9695. Verify interchangeability with system specifications before substitution.

What are the specifications of 679A0007-C041A?

Key specifications for 679A0007-C041A: Flange Diameter: 2.975 INCHES NOMINAL IN; Corner Shape: SQUARE ALL CORNERS; Body Style: EXTERNAL FLANGE; Body Outside Diameter: 2.750 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-052-2734 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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