Ring, Piston4310-00-720-4963

NSN 4310-00-720-4963 · NIIN 007204963

FSC 4310 — Compressors and Vacuum Pumps · FSG 43 — Pumps and Compressors

Government record, cited

Also searched as 4310-00-720-4963 · 4310007204963 · NIIN 007204963 · 00-720-4963 · FSC 4310 Compressors and Vacuum Pumps · 841397PC1 · 5000S4902C841397REVBPC1

Nearby stock numbers ← 4310-00-720-4808 · 4310-00-720-4964 Ring, Piston →

Features

Ring,piston — FSC 4310
Cross-Sectional Shape Style: PLAIN RECTANGULAR, THREE PIECE, STRAIGHT FACE
Joint Style: DIAGONAL JOINT
Radial Wall Thickness: 0.2460 INCHES MINIMUM AND 0.2660 INCHES MAXIMUM IN
Ring Style: CONCENTRIC
Standard Bore Diameter: 6.500 INCHES IN
Material: IRON OVERALL

Identification

NSN: 4310-00-720-4963
NIIN: 007204963
FSC: 4310 — Compressors and Vacuum Pumps
FSG: 43 — Pumps and Compressors

General Description

The Ring,piston, cataloged under National Stock Number 4310-00-720-4963, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4310-00-720-4963
Item Name	Ring,piston
FSC / FSG	4310 / 43 — Compressors and Vacuum Pumps
Status	ACTIVE
Cross-Sectional Shape Style	PLAIN RECTANGULAR, THREE PIECE, STRAIGHT FACE
Joint Style	DIAGONAL JOINT
Radial Wall Thickness	0.2460 INCHES MINIMUM AND 0.2660 INCHES MAXIMUM IN
Ring Style	CONCENTRIC
Standard Bore Diameter	6.500 INCHES IN
Material	IRON OVERALL

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
841397PC1	3/2 Design control — primary reference U.S. Government activity
5000S4902C841397REVBPC1	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 4310 — Compressors and Vacuum Pumps

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

4310-00-000-0050

COMPRESSOR UNIT,RECIPROCATING

4310-00-001-0059

4310-00-001-0059 · Item name not on file

4310-00-001-2044

MOUNTING PAD,TANK,PRESSURE

4310-00-001-3477

PARTS KIT,VACUUM PUMP

4310-00-001-3493

VACUUM PUMP,ROTARY

4310-00-001-6194

4310-00-001-6194 · Item name not on file

4310-00-001-6381

4310-00-001-6381 · Item name not on file

4310-00-001-7755

PARTS KIT,VACUUM PUMP

Frequently Asked Questions

What is NSN 4310-00-720-4963?

NSN 4310-00-720-4963 is a Ring,piston, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.

What are the specifications of 4310-00-720-4963?

Key specifications for 4310-00-720-4963: Overall Width: 0.3380 INCHES MINIMUM AND 0.3390 INCHES MAXIMUM IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, THREE PIECE, STRAIGHT FACE; Joint Style: DIAGONAL JOINT; Radial Wall Thickness: 0.2460 INCHES MINIMUM AND 0.2660 INCHES MAXIMUM IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4310-00-720-4963 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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