Pulley Block Assembly3020-01-013-0387

NSN 3020-01-013-0387 · NIIN 010130387

FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment

Government record, cited

Also searched as 3020-01-013-0387 · 3020010130387 · NIIN 010130387 · 01-013-0387 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · 3141430-014 · 3141430-014-103

Nearby stock numbers ← 3020-01-013-0365 Gear Set, Spur, Matched · 3020-01-013-0573 Gear, Internal →

Features

Pulley Block Assembly — FSC 3020
General Characteristics Item Description: CONSISTS OF PULLEY PER MS20221A3;1 PULLEY BLOCK;1 PIVOT BAR;1 CLEVIS;1 MTG BLOCK;4 BLOCK CLAMPS;4 MACHINE SCREWS;4 FLAT WASHERS;4 LOCK WASHERS;4 NUTS

Identification

NSN: 3020-01-013-0387
NIIN: 010130387
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment

General Description

The Pulley Block Assembly, cataloged under National Stock Number 3020-01-013-0387, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3020-01-013-0387
Item Name	Pulley Block Assembly
FSC / FSG	3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Status	ACTIVE
General Characteristics Item Description	CONSISTS OF PULLEY PER MS20221A3;1 PULLEY BLOCK;1 PIVOT BAR;1 CLEVIS;1 MTG BLOCK;4 BLOCK CLAMPS;4 MACHINE SCREWS;4 FLAT WASHERS;4 LOCK WASHERS;4 NUTS

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
3141430-014	D/9 Drawing number reference only U.S. Government activity
3141430-014-103	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain

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

3020-00-000-0091

GEAR,SPUR

3020-00-001-0027

3020-00-001-0027 · Item name not on file

3020-00-001-0028

3020-00-001-0028 · Item name not on file

3020-00-001-0063

3020-00-001-0063 · Item name not on file

3020-00-001-0064

3020-00-001-0064 · Item name not on file

3020-00-001-0066

3020-00-001-0066 · Item name not on file

3020-00-001-0071

3020-00-001-0071 · Item name not on file

3020-00-001-0072

3020-00-001-0072 · Item name not on file

Frequently Asked Questions

What is NSN 3020-01-013-0387?

NSN 3020-01-013-0387 is a Pulley Block Assembly, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What are the specifications of 3020-01-013-0387?

Key specifications for 3020-01-013-0387: General Characteristics Item Description: CONSISTS OF PULLEY PER MS20221A3;1 PULLEY BLOCK;1 PIVOT BAR;1 CLEVIS;1 MTG BLOCK;4 BLOCK CLAMPS;4 MACHINE SCREWS;4 FLAT WASHERS;4 LOCK WASHERS;4 NUTS. 1 specification is documented in the U.S. Government catalog.

Is NSN 3020-01-013-0387 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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