NSN 3020-00-451-2555 · NIIN 004512555 · Part number 12779
Scientific Atlanta Inc · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 10110
Government record, cited
NSN 3020-00-451-2555 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-451-2555. Manufacturer of record part number: 12779.
Also searched as3020-00-451-2555 ·
3020004512555 ·
NIIN 004512555 ·
00-451-2555 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 10110 · 12779
Style Designator: PERIPHERAL FACE, FRONT HUB PROTRUDING
Hub Style Designator: PLAIN FIRST END
1 manufacturer part number on file
Manufacturer of record: Scientific Atlanta Inc
Identification
NSN: 3020-00-451-2555
NIIN: 004512555
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 12779
Manufacturer: Scientific Atlanta Inc
General Description
The Gear,bevel, cataloged under National Stock Number 3020-00-451-2555, 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 Scientific Atlanta Inc. Government technical data includes 4 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
3020-00-451-2555
Primary Part Number
12779
Item Name
Gear,bevel
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer
Scientific Atlanta Inc
Status
ACTIVE
Body Style
PLAIN, SOLID
Nominal Overall Length
0.660 INCHES IN
Style Designator
PERIPHERAL FACE, FRONT HUB PROTRUDING
Hub Style Designator
PLAIN FIRST END
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5340-00-787-910812779POSSIBLE MATCH
SEAT,HELICAL COMPRESSION SPRING
Possible match (shared part number)Eaton Aerospace Llc Dba Eaton Aerospace Jackson
6105-00-949-847112779POSSIBLE MATCH
MOTOR,TORQUE
Possible match (shared part number)L3 Technologies, Inc. Div L3 Keo
5340-01-345-947412779POSSIBLE MATCH
LATCH,KICKOUT,SPECI
Possible match (shared part number)DP Manufacturing Inc.
NSN 3020-00-451-2555 is a Gear,bevel, manufactured by Scientific Atlanta Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
What part numbers are listed for NSN 3020-00-451-2555?
NSN 3020-00-451-2555 has 1 manufacturer part number on file: 12779 (Scientific Atlanta Inc).
What NSN replaces 3020-00-451-2555?
4 possible matches (shared part number, not a government interchangeability claim): 5340-00-787-9108, 6105-00-949-8471, 5340-01-345-9474. Verify interchangeability with system specifications before substitution.
What are the specifications of 12779?
Key specifications for 12779: Body Style: PLAIN, SOLID; Nominal Overall Length: 0.660 INCHES IN; Style Designator: PERIPHERAL FACE, FRONT HUB PROTRUDING; Hub Style Designator: PLAIN FIRST END. 4 specifications are documented in the U.S. Government catalog.
Is NSN 3020-00-451-2555 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.