NSN 2810-00-288-5594 · NIIN 002885594 · Part number 31406
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · FSC 2810 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components · FSG 28 — Engines, Turbines, and Components · CAGE 77445
Government record, cited
NSN 2810-00-288-5594 — this item is cataloged by the U.S. Government under National Stock Number 2810-00-288-5594. Manufacturer of record part number: 31406.
Also searched as2810-00-288-5594 ·
2810002885594 ·
NIIN 002885594 ·
00-288-5594 ·
FSC 2810 Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components · CAGE 77445 · 31406
Cross-Sectional Shape Style: PLAIN KEYSTONE, STRAIGHT RADII FACE
Joint Style: VERTICAL JOINT
Radial Wall Thickness: 0.1870 INCHES MINIMUM AND 0.1970 INCHES MAXIMUM IN
Ring Style: CONCENTRIC
Standard Bore Diameter: 5.500 INCHES IN
Material: IRON OVERALL
Identification
NSN: 2810-00-288-5594
NIIN: 002885594
FSC: 2810 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components
FSG: 28 — Engines, Turbines, and Components
Primary part number: 31406
Manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
General Description
The Ring,piston, cataloged under National Stock Number 2810-00-288-5594, is classified within Federal Supply Class 2810 (Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
2810-00-288-5594
Primary Part Number
31406
Item Name
Ring,piston
FSC / FSG
2810 / 28 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components
Manufacturer
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Status
ACTIVE
FSC Application Data
ACFT ENG R1820
Cross-Sectional Shape Style
PLAIN KEYSTONE, STRAIGHT RADII FACE
Joint Style
VERTICAL JOINT
Radial Wall Thickness
0.1870 INCHES MINIMUM AND 0.1970 INCHES MAXIMUM IN
Ring Style
CONCENTRIC
Standard Bore Diameter
5.500 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
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
7490-00-955-834531406POSSIBLE MATCH
BUSHING,TABLE,FLUSH
Possible match (shared part number)Pitney Bowes Inc.
4940-01-117-910431406POSSIBLE MATCH
BAIL
Possible match (shared part number)Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
4730-01-257-490564052H BPOSSIBLE MATCH
CLAMP,HOSE
Possible match (shared part number)Norma Pennsylvania Inc. Div Breeze Industrial Products
5935-01-305-0812SRM7SF0000POSSIBLE MATCH
CONNECTOR,RECEPTACLE,ELECTRICAL
Possible match (shared part number)Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
6515-01-565-7331314.06POSSIBLE MATCH
SLEEVE,HOLDING,HEX SCREWDRIVER,B
Possible match (shared part number)Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
NSN 2810-00-288-5594 is a Ring,piston, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2810, Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components. Status: active.
What part numbers are listed for NSN 2810-00-288-5594?
NSN 2810-00-288-5594 has 1 manufacturer part number on file: 31406 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
What NSN replaces 2810-00-288-5594?
6 possible matches (shared part number, not a government interchangeability claim): 7490-00-955-8345, 4940-01-117-9104, 4730-01-257-4905. Verify interchangeability with system specifications before substitution.
What are the specifications of 31406?
Key specifications for 31406: FSC Application Data: ACFT ENG R1820; Overall Width: 0.0990 INCHES MINIMUM AND 0.1000 INCHES MAXIMUM IN; Cross-Sectional Shape Style: PLAIN KEYSTONE, STRAIGHT RADII FACE; Joint Style: VERTICAL JOINT. 7 specifications are documented in the U.S. Government catalog.
Is NSN 2810-00-288-5594 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.