NSN 3010-01-264-8443 · NIIN 012648443 · Part number 20813
Mark Industries · FSC 3010 — Torque Converters and Speed Changers · FSG 30 — Mechanical Power Transmission Equipment · CAGE 60178
Government record, cited
NSN 3010-01-264-8443 — this item is cataloged by the U.S. Government under National Stock Number 3010-01-264-8443. Manufacturer of record part number: 20813.
Also searched as3010-01-264-8443 ·
3010012648443 ·
NIIN 012648443 ·
01-264-8443 ·
FSC 3010 Torque Converters and Speed Changers · CAGE 60178 · 20813
Spline Major Diameter: 6.500 INCHES NOMINAL THROUGH BORE IN
Bore Shape: SPLINED THROUGH BORE
1 manufacturer part number on file
Manufacturer of record: Mark Industries
Identification
NSN: 3010-01-264-8443
NIIN: 012648443
FSC: 3010 — Torque Converters and Speed Changers
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 20813
Manufacturer: Mark Industries
General Description
The Coupling,shaft,rigid, cataloged under National Stock Number 3010-01-264-8443, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Mark 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. 4 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
3010-01-264-8443
Primary Part Number
20813
Item Name
Coupling,shaft,rigid
FSC / FSG
3010 / 30 — Torque Converters and Speed Changers
Manufacturer
Mark Industries
Status
ACTIVE
Spline Major Diameter
6.500 INCHES NOMINAL THROUGH BORE IN
Bore Shape
SPLINED THROUGH BORE
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4320-01-360-247820813POSSIBLE MATCH
CYLINDER SLEEVE
Possible match (shared part number)Parker Hannifin Corporation Div Hydraulic Systems Division
5315-01-434-675520813POSSIBLE MATCH
PIN,STRAIGHT,HEADED
Possible match (shared part number)Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val
NSN 3010-01-264-8443 is a Coupling,shaft,rigid, manufactured by Mark Industries, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
What part numbers are listed for NSN 3010-01-264-8443?
NSN 3010-01-264-8443 has 1 manufacturer part number on file: 20813 (Mark Industries).
What NSN replaces 3010-01-264-8443?
4 possible matches (shared part number, not a government interchangeability claim): 4320-01-360-2478, 5315-01-434-6755, 9905-01-589-7517. Verify interchangeability with system specifications before substitution.
What are the specifications of 20813?
Key specifications for 20813: Spline Major Diameter: 6.500 INCHES NOMINAL THROUGH BORE IN; Bore Shape: SPLINED THROUGH BORE; Special Features: SINGLE PIECE. 2 specifications are documented in the U.S. Government catalog.
Is NSN 3010-01-264-8443 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.