NSN 4310-00-138-1920 · NIIN 001381920 · Part number 18-470
Rix Industries · FSC 4310 — Compressors and Vacuum Pumps · FSG 43 — Pumps and Compressors · CAGE 28953
Government record, cited
NSN 4310-00-138-1920 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-138-1920. Manufacturer of record part number: 18-470.
Also searched as4310-00-138-1920 ·
4310001381920 ·
NIIN 001381920 ·
00-138-1920 ·
FSC 4310 Compressors and Vacuum Pumps · CAGE 28953 · 18-470 · K18-470
Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE
Joint Style: VERTICAL JOINT
Radial Wall Thickness: 0.1880 INCHES NOMINAL IN
Ring Style: CONCENTRIC
Surface Treatment: ANODIZE OVERALL
Standard Bore Diameter: 4.750 INCHES IN
Material: STEEL OVERALL
Identification
NSN: 4310-00-138-1920
NIIN: 001381920
FSC: 4310 — Compressors and Vacuum Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 18-470
Manufacturer: Rix Industries
General Description
The Ring,piston, cataloged under National Stock Number 4310-00-138-1920, 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 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4310-00-138-1920
Primary Part Number
18-470
Item Name
Ring,piston
FSC / FSG
4310 / 43 — Compressors and Vacuum Pumps
Manufacturer
Rix Industries
Status
ACTIVE
Cross-Sectional Shape Style
PLAIN RECTANGULAR, STRAIGHT FACE
Joint Style
VERTICAL JOINT
Radial Wall Thickness
0.1880 INCHES NOMINAL IN
Ring Style
CONCENTRIC
Surface Treatment
ANODIZE OVERALL
Standard Bore Diameter
4.750 INCHES IN
Material
STEEL 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
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3020-00-196-485718470POSSIBLE MATCH
GEAR,SPUR
Possible match (shared part number)Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5950-00-307-413718-470POSSIBLE MATCH
TRANSFORMER,POWER
Possible match (shared part number)Leach International Corp Div Leach International Corporation
5330-00-352-778918470POSSIBLE MATCH
GASKET
Possible match (shared part number)Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5330-01-314-3841POSSIBLE MATCH
GASKET
Possible match (shared part number)
1680-01-553-5653POSSIBLE MATCH
SPRING,CHECK VALVE,
Possible match (shared part number)
6650-01-642-036718470POSSIBLE MATCH
TELESCOPE,STRAIGHT
Possible match (shared part number)Brunson Instrument Company Dba Brunson Instrument Company
NSN 4310-00-138-1920 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 4310-00-138-1920?
NSN 4310-00-138-1920 has 1 manufacturer part number on file: 18-470 (Rix Industries).
What NSN replaces 4310-00-138-1920?
6 possible matches (shared part number, not a government interchangeability claim): 3020-00-196-4857, 5950-00-307-4137, 5330-00-352-7789. Verify interchangeability with system specifications before substitution.
What are the specifications of 18-470?
Key specifications for 18-470: Overall Width: 0.2500 INCHES NOMINAL IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Joint Style: VERTICAL JOINT; Radial Wall Thickness: 0.1880 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4310-00-138-1920 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.