PartsTable TECHNICAL DATA SHEET

NSN 3010-01-370-5518Government record, cited

Coupling, Shaft, Flexible3010-01-370-5518

NSN 3010-01-370-5518 · NIIN 013705518 · Part number CD75542

Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division · FSC 3010 — Torque Converters and Speed Changers · FSG 30 — Mechanical Power Transmission Equipment · CAGE 75394

Government record, cited

NSN 3010-01-370-5518 — this item is cataloged by the U.S. Government under National Stock Number 3010-01-370-5518. Manufacturer of record part number: CD75542.

Also searched as 3010-01-370-5518 · 3010013705518 · NIIN 013705518 · 01-370-5518 · FSC 3010 Torque Converters and Speed Changers · CAGE 75394 · CD75542

Nearby stock numbers ← 3010-01-370-5489 Actuator, Hydraulic-Pneumatic, Lin · 3010-01-370-5519 Coupling, Shaft, Flexible →

Features

Coupling,shaft,flexible — FSC 3010
Bore Length: 3.0000 INCHES NOMINAL SECOND END IN
Bore Length: 4.1200 INCHES NOMINAL FIRST END IN
Design Type: DISK
Outside Diameter: 6.580 INCHES NOMINAL IN
Features Provided: EXPOSED COUPLING BOLT TYPE
Bore Shape: STRAIGHT BOTH ENDS
Bore Diameter: 1.9985 INCHES NOMINAL FIRST END IN

Identification

NSN: 3010-01-370-5518
NIIN: 013705518
FSC: 3010 — Torque Converters and Speed Changers
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: CD75542
Manufacturer: Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division

General Description

The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-370-5518, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division. Government technical data includes 8 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	3010-01-370-5518
Primary Part Number	CD75542
Item Name	Coupling,shaft,flexible
FSC / FSG	3010 / 30 — Torque Converters and Speed Changers
Manufacturer	Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division
Status	ACTIVE
Bore Length	3.0000 INCHES NOMINAL SECOND END IN
Bore Length	4.1200 INCHES NOMINAL FIRST END IN
Design Type	DISK
Outside Diameter	6.580 INCHES NOMINAL IN
Features Provided	EXPOSED COUPLING BOLT TYPE
Bore Shape	STRAIGHT BOTH ENDS
Bore Diameter	1.9985 INCHES NOMINAL FIRST END IN
Bore Diameter	3.0000 INCHES NOMINAL SECOND END IN

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 Items 4

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

3040-01-370-5525CC75430 POSSIBLE MATCH

HUB,BODY

Possible match (shared part number)Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division

3040-01-370-5526CB75513 POSSIBLE MATCH

HUB,BODY

Possible match (shared part number)Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division

3010-01-370-5631FX11321 POSSIBLE MATCH

DISC PACK ASSEMBLY

Possible match (shared part number)Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division

3010-01-370-5632FX11320 POSSIBLE MATCH

DISC PACK ASSEMBLY

Possible match (shared part number)Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division

Cross-Reference Index

Part Number	Manufacturer
CD75542 PRIMARY	Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division (USA)

Related Parts

3040-01-370-5525POSSIBLE MATCH

HUB,BODY

CC75430

3040-01-370-5526POSSIBLE MATCH

HUB,BODY

CB75513

3010-01-370-5631POSSIBLE MATCH

DISC PACK ASSEMBLY

FX11321

3010-01-370-5632POSSIBLE MATCH

DISC PACK ASSEMBLY

FX11320

Frequently Asked Questions

What is NSN 3010-01-370-5518?

NSN 3010-01-370-5518 is a Coupling,shaft,flexible, manufactured by Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.

What part numbers are listed for NSN 3010-01-370-5518?

NSN 3010-01-370-5518 has 1 manufacturer part number on file: CD75542 (Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division).

What NSN replaces 3010-01-370-5518?

4 possible matches (shared part number, not a government interchangeability claim): 3040-01-370-5525, 3040-01-370-5526, 3010-01-370-5631. Verify interchangeability with system specifications before substitution.

What are the specifications of CD75542?

Key specifications for CD75542: Bore Length: 3.0000 INCHES NOMINAL SECOND END IN; Bore Length: 4.1200 INCHES NOMINAL FIRST END IN; Design Type: DISK; Overall Length: 16.380 INCHES NOMINAL IN. 8 specifications are documented in the U.S. Government catalog.

Is NSN 3010-01-370-5518 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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