Ring, Wearing4320-01-021-3849

NSN 4320-01-021-3849 · NIIN 010213849

FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors

Government record, cited

Also searched as 4320-01-021-3849 · 4320010213849 · NIIN 010213849 · 01-021-3849 · FSC 4320 Power and Hand Pumps

Nearby stock numbers ← 4320-01-021-3558 Housing Impeller · 4320-01-021-3860 Flange and Pin Assembly →

Features

Ring,wearing — FSC 4320
Center Flange Thickness: 0.239 INCHES NOMINAL IN
Corner Shape: SQUARE ALL CORNERS
Body Style: GROOVED W/INTERNAL AND EXTERNAL FLANGE
Body Outside Diameter: 5.6235 INCHES NOMINAL IN
End to Flange Distance: 0.250 INCHES NOMINAL IN
Groove Depth: 0.228 INCHES NOMINAL IN
Internal Flange Inside Diameter: 4.625 INCHES NOMINAL IN

Identification

NSN: 4320-01-021-3849
NIIN: 010213849
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors

General Description

The Ring,wearing, cataloged under National Stock Number 4320-01-021-3849, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4320-01-021-3849
Item Name	Ring,wearing
FSC / FSG	4320 / 43 — Power and Hand Pumps
Status	ACTIVE
Center Flange Thickness	0.239 INCHES NOMINAL IN
Corner Shape	SQUARE ALL CORNERS
Body Style	GROOVED W/INTERNAL AND EXTERNAL FLANGE
Body Outside Diameter	5.6235 INCHES NOMINAL IN
End to Flange Distance	0.250 INCHES NOMINAL IN
Groove Depth	0.228 INCHES NOMINAL IN
Internal Flange Inside Diameter	4.625 INCHES NOMINAL IN
Distance From End to Groove Center	0.375 INCHES NOMINAL IN
Distance Below Centerline	0.063 INCHES NOMINAL IN
Body Inside Diameter	5.267 INCHES NOMINAL IN
Smallest External Anchor Flange Radius	2.984 INCHES NOMINAL IN
Material	NICKEL ALLOY D
Internal Flange Width	0.250 INCHES NOMINAL IN
Largest External Anchor Flange Radius	3.109 INCHES NOMINAL IN
Groove Width	0.190 INCHES NOMINAL IN

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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
NA1317-1	3/2 Design control — primary reference U.S. Government activity

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 4320-01-021-3849?

NSN 4320-01-021-3849 is a Ring,wearing, classified under FSC 4320, Power and Hand Pumps. Status: active.

What are the specifications of 4320-01-021-3849?

Key specifications for 4320-01-021-3849: Center Flange Thickness: 0.239 INCHES NOMINAL IN; Corner Shape: SQUARE ALL CORNERS; Body Style: GROOVED W/INTERNAL AND EXTERNAL FLANGE; Body Outside Diameter: 5.6235 INCHES NOMINAL IN. 15 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-021-3849 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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