PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

280350Belt,v

Unimac Co Inc · NSN 3030-00-528-3827 · FSC 3030 · No Item Name Available
Verified by PartsTable
NSN 3030-00-528-3827 — this item is cataloged by the U.S. Government under National Stock Number 3030-00-528-3827. Primary manufacturer part number: 280350.
Features
  • Belt,v — FSC 3030
  • Strengthening Feature: FIBER CORD
  • Material: FIBER AND RUBBER BODY
  • Nominal Effective Outside Length: 69.000 INCHES IN
  • Cross-Sectional Size: 4L
  • Style Designator: PLAIN
  • 19 verified cross-references
  • Primary manufacturer: Unimac Co Inc
Applications
  • Applications requiring Fiber and Rubber Body construction
General Description

The Belt,v, cataloged under National Stock Number 3030-00-528-3827, is classified within Federal Supply Class 3030 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Unimac Co Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 19 commercial cross-references from 15 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3030-00-528-3827
Primary Part Number280350
Item NameBelt,v
FSC / FSG3030 / 30 — No Item Name Available
ManufacturerUnimac Co Inc
StatusCANCELLED
Strengthening FeatureFIBER CORD
MaterialFIBER AND RUBBER BODY
Nominal Effective Outside Length69.000 INCHES IN
Cross-Sectional Size4L
Style DesignatorPLAIN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5365-00-008-36822690 INTERCHANGEABLE
Spacer,plate
L3harris Technologies, Inc. Div Space and Airborne Systems
5905-00-049-6281280350 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Cae Usa Inc.
3110-00-100-07362690 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5990-00-268-9069 INTERCHANGEABLE
Synchro,control Transformer
5945-00-295-6665 INTERCHANGEABLE
Relay,electromagnetic
1650-00-304-61722690 INTERCHANGEABLE
Tube,nose Landing Gear Cylinder
Goodrich Corporation
2990-00-441-81051109 INTERCHANGEABLE
Muffler,exhaust
Merit Industries Inc
6640-00-471-174926900 INTERCHANGEABLE
Grid,specimen,electron Microscop
Ernest F Fullam Inc
5340-00-805-1055 INTERCHANGEABLE
Buckle
6625-00-849-1445320S37 INTERCHANGEABLE
Ammeter
Ametek Inc Dba Ametek Iscd Div Iscd
Cross-Reference Index
Part NumberManufacturer
280350 Unimac Co Inc (USA)
4L690 Lanxess Corporation (USA)
4L690 Hbd Industries, Inc Div Hbd/thermoid Inc (USA)
4L690 Gates Corporation (USA)
4L690 Carlisle Power Transmission Products Inc (USA)
A52490-4L690 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-52490-4L690 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
4L690 Contitech Usa, Inc Dba Veyance Technologies (USA)
4L690 Parker-Hannifin Corporation Dba Industrial Hose Product Division Div Hose Products Division (USA)
MS39242-52 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
4L690 Goodyear Tire and Rubber Co the (USA)
4L690 Raymark Industries Inc (USA)
2690 Gates Corporation (USA)
4L690 Gardner Denver Inc. (USA)
4L690 Jason Industrial Inc (USA)
4L690 Goodrich Corporation (USA)
6869 Gates Corporation (USA)
4L690 Emerson Electric Co Browning Mfg Div (USA)
A-A-52490 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
5365-00-008-3682INTERCHANGEABLE
SPACER,PLATE
2690
5905-00-049-6281INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
280350
3110-00-100-0736INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
2690
5990-00-268-9069INTERCHANGEABLE
SYNCHRO,CONTROL TRANSFORMER
5945-00-295-6665INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
1650-00-304-6172INTERCHANGEABLE
TUBE,NOSE LANDING GEAR CYLINDER
2690
2990-00-441-8105INTERCHANGEABLE
MUFFLER,EXHAUST
1109
6640-00-471-1749INTERCHANGEABLE
GRID,SPECIMEN,ELECTRON MICROSCOP
26900
5340-00-805-1055INTERCHANGEABLE
BUCKLE
6625-00-849-1445INTERCHANGEABLE
AMMETER
320S37
3120-00-932-0764INTERCHANGEABLE
BUSHING,SLEEVE
26-90
1680-01-068-4207INTERCHANGEABLE
SEAT ASSEMBLY
686-9

Frequently Asked Questions

What is NSN 3030-00-528-3827?

NSN 3030-00-528-3827 is a Belt,v, manufactured by Unimac Co Inc, classified under FSC 3030 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3030-00-528-3827?

NSN 3030-00-528-3827 has 19 cross-referenced part numbers: 280350 (Unimac Co Inc), 4L690 (Lanxess Corporation), 4L690 (Hbd Industries, Inc Div Hbd/thermoid Inc), 4L690 (Gates Corporation), 4L690 (Carlisle Power Transmission Products Inc) and 14 more.

What NSN replaces 3030-00-528-3827?

There are 12 known substitutes for 3030-00-528-3827: 5365-00-008-3682, 5905-00-049-6281, 3110-00-100-0736 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 280350?

Key specifications for 280350: End Item Identification: GRUMMAN A10 AIRCRAFT; Strengthening Feature: FIBER CORD; Material: FIBER AND RUBBER BODY; Nominal Effective Outside Length: 69.000 INCHES IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3030-00-528-3827 still in active supply?

NSN 3030-00-528-3827 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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