Ring, Wearing4320-01-151-4971

NSN 4320-01-151-4971 · NIIN 011514971 · Part number 103.000.137

Wilo Usa Llc · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 13646

Government record, cited

NSN 4320-01-151-4971 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-151-4971. Manufacturer of record part number: 103.000.137.

Also searched as 4320-01-151-4971 · 4320011514971 · NIIN 011514971 · 01-151-4971 · FSC 4320 Power and Hand Pumps · CAGE 13646 · 103.000.137

Nearby stock numbers ← 4320-01-151-4482 Disk, Pump · 4320-01-151-5213 Pump Unit, Centrifugal →

Features

Ring,wearing — FSC 4320
Surface Finish: 32.0 MICROINCHES INSIDE
Corner Shape: CHAMFERED OUTSIDE RIGHT CORNER
Chamfer Length: 0.062 INCHES NOMINAL OUTSIDE RIGHT CORNER IN
Body Style: PLAIN
Body Outside Diameter: 3.379 INCHES NOMINAL IN
Body Inside Diameter: 2.875 INCHES NOMINAL IN
Cubic Measure: 0.2000 CUBIC FEET

Identification

NSN: 4320-01-151-4971
NIIN: 011514971
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 103.000.137
Manufacturer: Wilo Usa Llc

General Description

The Ring,wearing, cataloged under National Stock Number 4320-01-151-4971, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Wilo Usa Llc. Government technical data includes 9 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4320-01-151-4971
Primary Part Number	103.000.137
Item Name	Ring,wearing
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Wilo Usa Llc
Status	ACTIVE
Surface Finish	32.0 MICROINCHES INSIDE
Corner Shape	CHAMFERED OUTSIDE RIGHT CORNER
Chamfer Length	0.062 INCHES NOMINAL OUTSIDE RIGHT CORNER IN
Body Style	PLAIN
Body Outside Diameter	3.379 INCHES NOMINAL IN
Body Inside Diameter	2.875 INCHES NOMINAL IN
Cubic Measure	0.2000 CUBIC FEET
Chamfer Angle	15.0 DEGREES NOMINAL OUTSIDE RIGHT CORNER
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

Cross-Reference Index

Part Number	Manufacturer
103.000.137 PRIMARY	Wilo Usa Llc (USA)

No interchangeability data on file.

Other items in FSC 4320 — Power and Hand Pumps

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4320-00-001-1633

4320-00-001-1633 · Item name not on file

4320-00-001-2628

RETAINER AND PIN

4320-00-001-2629

HOUSING AND PIN

4320-00-001-2630

PUMP,CENTRIFUGAL

4320-00-001-2631

4320-00-001-2631 · Item name not on file

4320-00-001-2632

4320-00-001-2632 · Item name not on file

4320-00-001-3377

4320-00-001-3377 · Item name not on file

4320-00-001-3384

4320-00-001-3384 · Item name not on file

Frequently Asked Questions

What is NSN 4320-01-151-4971?

NSN 4320-01-151-4971 is a Ring,wearing, manufactured by Wilo Usa Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-151-4971?

NSN 4320-01-151-4971 has 1 manufacturer part number on file: 103.000.137 (Wilo Usa Llc).

What are the specifications of 103.000.137?

Key specifications for 103.000.137: Surface Finish: 32.0 MICROINCHES INSIDE; Corner Shape: CHAMFERED OUTSIDE RIGHT CORNER; Chamfer Length: 0.062 INCHES NOMINAL OUTSIDE RIGHT CORNER IN; Body Style: PLAIN. 9 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-151-4971 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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