Ring, Wearing4320-01-666-6134

NSN 4320-01-666-6134 · NIIN 016666134 · Part number BW8101561

Ampco Pumps Company Llc · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 0TWN3

Government record, cited

NSN 4320-01-666-6134 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-666-6134. Manufacturer of record part number: BW8101561.

Also searched as 4320-01-666-6134 · 4320016666134 · NIIN 016666134 · 01-666-6134 · FSC 4320 Power and Hand Pumps · CAGE 0TWN3 · BW8101561

Nearby stock numbers ← 4320-01-666-5962 Pump Unit, Centrifugal · 4320-01-666-6836 Pump, Reciprocating →

Features

Ring,wearing — FSC 4320
Body Outside Diameter: 1.500 INCHES NOMINAL IN
Material: STEEL COMP 316
1 manufacturer part number on file
Manufacturer of record: Ampco Pumps Company Llc

Identification

NSN: 4320-01-666-6134
NIIN: 016666134
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: BW8101561
Manufacturer: Ampco Pumps Company Llc

General Description

The Ring,wearing, cataloged under National Stock Number 4320-01-666-6134, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Ampco Pumps Company Llc. Government technical data includes 2 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	4320-01-666-6134
Primary Part Number	BW8101561
Item Name	Ring,wearing
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Ampco Pumps Company Llc
Status	ACTIVE
Body Outside Diameter	1.500 INCHES NOMINAL IN
Material	STEEL COMP 316

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
BW8101561 PRIMARY	Ampco Pumps Company 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 4320-01-666-6134?

NSN 4320-01-666-6134 is a Ring,wearing, manufactured by Ampco Pumps Company Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-666-6134?

NSN 4320-01-666-6134 has 1 manufacturer part number on file: BW8101561 (Ampco Pumps Company Llc).

What are the specifications of BW8101561?

Key specifications for BW8101561: Body Outside Diameter: 1.500 INCHES NOMINAL IN; Special Features: FOR SUCTION PUMP; Part Name Assigned by Controlling Agency: WEAR RING; Material: STEEL COMP 316. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-666-6134 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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