Piston Ring4310-01-137-1165

NSN 4310-01-137-1165 · NIIN 011371165 · Part number CM29-2500-2750-375

Columbia Machine Inc · FSC 4310 — Compressors and Vacuum Pumps · FSG 43 — Pumps and Compressors · CAGE 34462

Government record, cited

NSN 4310-01-137-1165 — this item is cataloged by the U.S. Government under National Stock Number 4310-01-137-1165. Manufacturer of record part number: CM29-2500-2750-375.

Also searched as 4310-01-137-1165 · 4310011371165 · NIIN 011371165 · 01-137-1165 · FSC 4310 Compressors and Vacuum Pumps · CAGE 34462 · CM29-2500-2750-375

Nearby stock numbers ← 4310-01-137-1077 Plate, Discharge · 4310-01-137-1431 Ring, Piston →

Features

Piston Ring — FSC 4310
1 manufacturer part number on file
Manufacturer of record: Columbia Machine Inc

Identification

NSN: 4310-01-137-1165
NIIN: 011371165
FSC: 4310 — Compressors and Vacuum Pumps
FSG: 43 — Pumps and Compressors
Primary part number: CM29-2500-2750-375
Manufacturer: Columbia Machine Inc

General Description

The Piston Ring, cataloged under National Stock Number 4310-01-137-1165, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Columbia Machine Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Piston Ring
FSC / FSG	4310 — Compressors and Vacuum Pumps (FSG 43)
Manufacturers	Columbia Machine Inc (CAGE 34462)

Technical Specifications

Parameter	Value
NSN	4310-01-137-1165
Primary Part Number	CM29-2500-2750-375
Item Name	Piston Ring
FSC / FSG	4310 / 43 — Compressors and Vacuum Pumps
Manufacturer	Columbia Machine Inc
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
CM29-2500-2750-375 PRIMARY	Columbia Machine Inc (USA)

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 4310-01-137-1165?

NSN 4310-01-137-1165 is a Piston Ring, manufactured by Columbia Machine Inc, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.

What part numbers are listed for NSN 4310-01-137-1165?

NSN 4310-01-137-1165 has 1 manufacturer part number on file: CM29-2500-2750-375 (Columbia Machine Inc).

Is NSN 4310-01-137-1165 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.

PartsTable Design LLC · partstable.com