PartsTable TECHNICAL DATA SHEET

NSN 3020-01-258-6950Government record, cited

Gear, Spur3020-01-258-6950

NSN 3020-01-258-6950 · NIIN 012586950 · Part number XB5552

Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 61208

Government record, cited

NSN 3020-01-258-6950 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-258-6950. Manufacturer of record part number: XB5552.

Also searched as 3020-01-258-6950 · 3020012586950 · NIIN 012586950 · 01-258-6950 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 61208 · XB5552 · XB5552/B5552

Nearby stock numbers ← 3020-01-258-6949 Gear, Spur · 3020-01-258-6951 Gear, Spur →

Features

Gear,spur — FSC 3020
Teeth Quantity: 75
Pressure Angle: 20.0000 DEGREES
1 manufacturer part number on file
Manufacturer of record: Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic

Identification

NSN: 3020-01-258-6950
NIIN: 012586950
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: XB5552
Manufacturer: Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic

General Description

The Gear,spur, cataloged under National Stock Number 3020-01-258-6950, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	3020-01-258-6950
Primary Part Number	XB5552
Item Name	Gear,spur
FSC / FSG	3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer	Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
Status	ACTIVE
Teeth Quantity	75
Pressure Angle	20.0000 DEGREES

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
XB5552 PRIMARY	Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)

Reference documents

Reference	Meaning
XB5552/B5552	5/9 Secondary reference Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic

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 3020-01-258-6950?

NSN 3020-01-258-6950 is a Gear,spur, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-01-258-6950?

NSN 3020-01-258-6950 has 1 manufacturer part number on file: XB5552 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).

What are the specifications of XB5552?

Key specifications for XB5552: Teeth Quantity: 75; Pressure Angle: 20.0000 DEGREES. 2 specifications are documented in the U.S. Government catalog.

Is NSN 3020-01-258-6950 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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