PartsTable TECHNICAL DATA SHEET

NSN 3950-01-549-9121Government record, cited

Tensioner Pulley Assembly3950-01-549-9121

NSN 3950-01-549-9121 · NIIN 015499121 · Part number S16021

Lidan Marine Ab · FSC 3950 — Winches, Hoists, Cranes, and Derricks · FSG 39 — Materials Handling Equipment · CAGE A244N

Government record, cited

NSN 3950-01-549-9121 — this item is cataloged by the U.S. Government under National Stock Number 3950-01-549-9121. Manufacturer of record part number: S16021.

Also searched as 3950-01-549-9121 · 3950015499121 · NIIN 015499121 · 01-549-9121 · FSC 3950 Winches, Hoists, Cranes, and Derricks · CAGE A244N · S16021 · 16135 PC 3 · 16135 PC 3

Nearby stock numbers ← 3950-01-549-9113 Tensioner Pulley Assembly · 3950-01-549-9775 Hoist, Wire Rope →

Features

Tensioner Pulley Assembly — FSC 3950
2 manufacturer part numbers on file
Manufacturer of record: Lidan Marine Ab

Identification

NSN: 3950-01-549-9121
NIIN: 015499121
FSC: 3950 — Winches, Hoists, Cranes, and Derricks
FSG: 39 — Materials Handling Equipment
Primary part number: S16021
Manufacturer: Lidan Marine Ab

General Description

The Tensioner Pulley Assembly, cataloged under National Stock Number 3950-01-549-9121, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. The manufacturer of record is Lidan Marine Ab. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Tensioner Pulley Assembly
FSC / FSG	3950 — Winches, Hoists, Cranes, and Derricks (FSG 39)
Manufacturers	Lidan Marine Ab (CAGE A244N)

Technical Specifications

Parameter	Value
NSN	3950-01-549-9121
Primary Part Number	S16021
Item Name	Tensioner Pulley Assembly
FSC / FSG	3950 / 39 — Winches, Hoists, Cranes, and Derricks
Manufacturer	Lidan Marine Ab
Status	ACTIVE

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

Part Number	Manufacturer
16135 PC 3	Lidan Marine Ab (SWE)
S16021 PRIMARY	Lidan Marine Ab (SWE)

Reference documents

Reference	Meaning
S16021	3/9 Design control — primary reference Lidan Marine Ab
16135 PC 3	5/9 Secondary reference Lidan Marine Ab

No interchangeability data on file.

Other items in FSC 3950 — Winches, Hoists, Cranes, and Derricks

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

3950-00-001-1249

LINING,FRICTION

3950-00-001-3984

3950-00-001-3984 · Item name not on file

3950-00-001-6303

3950-00-001-6303 · Item name not on file

3950-00-001-6304

3950-00-001-6304 · Item name not on file

3950-00-001-6312

3950-00-001-6312 · Item name not on file

3950-00-001-6313

HOIST,TRUCK

3950-00-001-7831

3950-00-001-7831 · Item name not on file

3950-00-001-7834

COOLING COIL,WINCH

Frequently Asked Questions

What is NSN 3950-01-549-9121?

NSN 3950-01-549-9121 is a Tensioner Pulley Assembly, manufactured by Lidan Marine Ab, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.

What part numbers are listed for NSN 3950-01-549-9121?

NSN 3950-01-549-9121 has 2 manufacturer part numbers on file: 16135 PC 3 (Lidan Marine Ab), S16021 (Lidan Marine Ab).

Is NSN 3950-01-549-9121 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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