Adapter, Coupling, Shaft1680-01-474-0544

NSN 1680-01-474-0544 · NIIN 014740544

FSC 1680 — Miscellaneous Aircraft Accessories and Components · FSG 16 — Aircraft Components and Accessories

Government record, cited

Also searched as 1680-01-474-0544 · 1680014740544 · NIIN 014740544 · 01-474-0544 · FSC 1680 Miscellaneous Aircraft Accessories and Components

Nearby stock numbers ← 1680-01-474-0475 Panel, Indicator · 1680-01-474-1072 Gearbox Assembly, Aircraft →

Features

Adapter,coupling,shaft — FSC 1680
Material: STEEL

Identification

NSN: 1680-01-474-0544
NIIN: 014740544
FSC: 1680 — Miscellaneous Aircraft Accessories and Components
FSG: 16 — Aircraft Components and Accessories

General Description

The Adapter,coupling,shaft, cataloged under National Stock Number 1680-01-474-0544, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	1680-01-474-0544
Item Name	Adapter,coupling,shaft
FSC / FSG	1680 / 16 — Miscellaneous Aircraft Accessories and Components
Status	ACTIVE
Material	STEEL

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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
K874382-011	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 1680 — Miscellaneous Aircraft Accessories and Components

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

1680-00-000-0144

CUSHION,SEAT BACK,AIRCRAFT

1680-00-001-1401

1680-00-001-1401 · Item name not on file

1680-00-001-1402

1680-00-001-1402 · Item name not on file

1680-00-001-1403

1680-00-001-1403 · Item name not on file

1680-00-001-1404

COVER,INERTIA REEL

1680-00-001-1730

SHIELD,THERMAL RADI

1680-00-001-1731

LEVER,REMOTE CONTROL

1680-00-001-1736

DUCT ASSEMBLY,BRANCHED

Frequently Asked Questions

What is NSN 1680-01-474-0544?

NSN 1680-01-474-0544 is a Adapter,coupling,shaft, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.

What are the specifications of 1680-01-474-0544?

Key specifications for 1680-01-474-0544: Overall Length: 2.135 INCHES NOMINAL IN; Overall Width: 3.186 INCHES NOMINAL IN; Special Features: FLANGE END HAS FOUR HOLES 0.253 TO 0.258 IN. DIA.; HOLES ARE EQUALLY SPACED ON SAME BOLT CIRCLE 1.562 IN. RA DIUS FROM CENTER POINT OF FLANGE FACE; SIDE RADIUS OF FLANGE FROM CENTER IS 1.375 IN.; 26 TOOTH INTERNAL SPLINE H AS MINOR DIA. OF 1.563 TO 1.568 IN. AND MAJOR DIA. OF 1.754 IN.; BETWEEN PINS 1.4718 TO 1.4743 IN.; PIN DIA. IS 0.1080 IN.; I.V.D. ALUMINUM COATED EXTERNAL AREAS; HEAT TREATED TO 150000.0 P.S.I. MIN. TENSILE STRENGTH, RC 34-38 IN; Part Name Assigned by Controlling Agency: ADAPTER-COUPLING,BLOWER DRIVE SHAFT. 1 specification is documented in the U.S. Government catalog.

Is NSN 1680-01-474-0544 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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