PartsTable TECHNICAL DATA SHEET

NSN 4310-01-339-9707Government record, cited

Ring Set, Piston4310-01-339-9707

NSN 4310-01-339-9707 · NIIN 013399707 · Part number 4450-020

Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor · FSC 4310 — Compressors and Vacuum Pumps · FSG 43 — Pumps and Compressors · CAGE 49576

Government record, cited

NSN 4310-01-339-9707 — this item is cataloged by the U.S. Government under National Stock Number 4310-01-339-9707. Manufacturer of record part number: 4450-020.

Also searched as 4310-01-339-9707 · 4310013399707 · NIIN 013399707 · 01-339-9707 · FSC 4310 Compressors and Vacuum Pumps · CAGE 49576 · 4450-020 · 4450OV20

Nearby stock numbers ← 4310-01-339-9706 Ring Set, Piston · 4310-01-339-9986 Pneumatic Muffler, Exhaust-Intake →

Features

Ring Set,piston — FSC 4310
1 manufacturer part number on file
Manufacturer of record: Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor

Identification

NSN: 4310-01-339-9707
NIIN: 013399707
FSC: 4310 — Compressors and Vacuum Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 4450-020
Manufacturer: Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor

General Description

The Ring Set,piston, cataloged under National Stock Number 4310-01-339-9707, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4310-01-339-9707
Primary Part Number	4450-020
Item Name	Ring Set,piston
FSC / FSG	4310 / 43 — Compressors and Vacuum Pumps
Manufacturer	Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
Status	ACTIVE

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
4450-020 PRIMARY	Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA)

Reference documents

Reference	Meaning
4450OV20	5/9 Secondary reference Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor

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 4310-01-339-9707?

NSN 4310-01-339-9707 is a Ring Set,piston, manufactured by Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.

What part numbers are listed for NSN 4310-01-339-9707?

NSN 4310-01-339-9707 has 1 manufacturer part number on file: 4450-020 (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor).

What are the specifications of 4450-020?

Key specifications for 4450-020: End Item Identification: COMPRESSOR UNIT. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4310-01-339-9707 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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