Ring, Piston4310-01-377-4239

NSN 4310-01-377-4239 · NIIN 013774239 · Part number 18-B418-13P

Rix Industries · FSC 4310 — Compressors and Vacuum Pumps · FSG 43 — Pumps and Compressors · CAGE 28953

Government record, cited

NSN 4310-01-377-4239 — this item is cataloged by the U.S. Government under National Stock Number 4310-01-377-4239. Manufacturer of record part number: 18-B418-13P.

Also searched as 4310-01-377-4239 · 4310013774239 · NIIN 013774239 · 01-377-4239 · FSC 4310 Compressors and Vacuum Pumps · CAGE 28953 · 18-B418-13P

Nearby stock numbers ← 4310-01-377-4174 Piston, Compressor · 4310-01-377-4554 Head, Piston, Compressor →

Features

Ring,piston — FSC 4310
Ring Style: CONCENTRIC
Material: PLASTIC OVERALL
1 manufacturer part number on file
Manufacturer of record: Rix Industries

Identification

NSN: 4310-01-377-4239
NIIN: 013774239
FSC: 4310 — Compressors and Vacuum Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 18-B418-13P
Manufacturer: Rix Industries

General Description

The Ring,piston, cataloged under National Stock Number 4310-01-377-4239, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Rix Industries. 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	4310-01-377-4239
Primary Part Number	18-B418-13P
Item Name	Ring,piston
FSC / FSG	4310 / 43 — Compressors and Vacuum Pumps
Manufacturer	Rix Industries
Status	ACTIVE
Ring Style	CONCENTRIC
Material	PLASTIC 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

Part Number	Manufacturer
18-B418-13P PRIMARY	Rix Industries (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 4310-01-377-4239?

NSN 4310-01-377-4239 is a Ring,piston, manufactured by Rix Industries, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.

What part numbers are listed for NSN 4310-01-377-4239?

NSN 4310-01-377-4239 has 1 manufacturer part number on file: 18-B418-13P (Rix Industries).

What are the specifications of 18-B418-13P?

Key specifications for 18-B418-13P: Overall Width: 3.0000 INCHES NOMINAL IN; Ring Style: CONCENTRIC; Special Features: RIDER RING; POLYCOMP 148; End Item Identification: COMPRESSOR, RIX INDUSTRIES, MODEL NO. 3K3B-44, S/N 7847 & 7848. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4310-01-377-4239 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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