PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4638Belts,v,matched Set

Harbormaster Marine, Inc · NSN 3030-00-117-9285 · FSC 3030 · No Item Name Available
Verified by PartsTable
NSN 3030-00-117-9285 — this item is cataloged by the U.S. Government under National Stock Number 3030-00-117-9285. Primary manufacturer part number: 4638.
Features
  • Belts,v,matched Set — FSC 3030
  • Strengthening Feature: STEEL CORD
  • Belt Quantity: 2
  • Cross-Sectional Size: B
  • Style Designator: PLAIN
  • Nominal Pitch Length: 55.800 INCHES IN
  • Material: FIBER AND RUBBER BODY
  • Performance Type: HIGH CAPACITY
Applications
  • Applications requiring Fiber and Rubber Body construction
General Description

The Belts,v,matched Set, cataloged under National Stock Number 3030-00-117-9285, is classified within Federal Supply Class 3030 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Harbormaster Marine, Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3030-00-117-9285
Primary Part Number4638
Item NameBelts,v,matched Set
FSC / FSG3030 / 30 — No Item Name Available
ManufacturerHarbormaster Marine, Inc
StatusCANCELLED
Strengthening FeatureSTEEL CORD
Belt Quantity2
Cross-Sectional SizeB
Style DesignatorPLAIN
Nominal Pitch Length55.800 INCHES IN
MaterialFIBER AND RUBBER BODY
Performance TypeHIGH CAPACITY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
4920-00-113-9998B542 INTERCHANGEABLE
Adapter Box,test P
Lockheed Martin Corp
3110-00-142-4332177030-5 INTERCHANGEABLE
Bearing,ball,airframe
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5905-00-156-70854638 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Sensor Systems, L.l.c. Dba Sensor Systems Llc
5136-00-403-555126822 INTERCHANGEABLE
Die Head and Die,hand
Curtis-Toledo, Inc.
5330-00-442-02084638 INTERCHANGEABLE
Gasket
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
3120-00-469-12913435A12PC57 INTERCHANGEABLE
Bearing,sleeve
Bae Systems Land & Armaments L.p.
6140-01-180-75884638 INTERCHANGEABLE
Roller,battery Box
Elliott Machine Works Inc
5120-01-215-93834638 INTERCHANGEABLE
Retrieving Tool,cable
Huntington Partners, Inc. Dba Continental Tool & Mfg.
5120-01-335-8164S381 INTERCHANGEABLE
Socket,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5950-01-359-95314638 INTERCHANGEABLE
Reactor
Amecon Inc
Cross-Reference Index
Part NumberManufacturer
B54SC2 Pirelli Power Transmission Corp (USA)
B54-2 Contitech Usa, Inc Dba Veyance Technologies (USA)
BW54-2 Goodyear Tire and Rubber Co the (USA)
BW54-2 Contitech Usa, Inc Dba Veyance Technologies (USA)
B54-2 Goodyear Tire and Rubber Co the (USA)
B54-2 Gates Corporation (USA)
4638 PRIMARY Harbormaster Marine, Inc (USA)
Related Parts
4920-00-113-9998INTERCHANGEABLE
ADAPTER BOX,TEST P
B542
3110-00-142-4332INTERCHANGEABLE
BEARING,BALL,AIRFRAME
177030-5
5905-00-156-7085INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
4638
5136-00-403-5551INTERCHANGEABLE
DIE HEAD AND DIE,HAND
26822
5330-00-442-0208INTERCHANGEABLE
GASKET
4638
3120-00-469-1291INTERCHANGEABLE
BEARING,SLEEVE
3435A12PC57
6140-01-180-7588INTERCHANGEABLE
ROLLER,BATTERY BOX
4638
5120-01-215-9383INTERCHANGEABLE
RETRIEVING TOOL,CABLE
4638
5120-01-335-8164INTERCHANGEABLE
SOCKET,SOCKET WRENCH
S381
5950-01-359-9531INTERCHANGEABLE
REACTOR
4638
4530-01-396-2479INTERCHANGEABLE
LENS,QUARTZ SCANNER
46-38

Frequently Asked Questions

What is NSN 3030-00-117-9285?

NSN 3030-00-117-9285 is a Belts,v,matched Set, manufactured by Harbormaster Marine, Inc, classified under FSC 3030 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3030-00-117-9285?

NSN 3030-00-117-9285 has 7 cross-referenced part numbers: B54SC2 (Pirelli Power Transmission Corp), B54-2 (Contitech Usa, Inc Dba Veyance Technologies), BW54-2 (Goodyear Tire and Rubber Co the), BW54-2 (Contitech Usa, Inc Dba Veyance Technologies), B54-2 (Goodyear Tire and Rubber Co the) and 2 more.

What NSN replaces 3030-00-117-9285?

There are 11 known substitutes for 3030-00-117-9285: 4920-00-113-9998, 3110-00-142-4332, 5905-00-156-7085 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4638?

Key specifications for 4638: Strengthening Feature: STEEL CORD; Belt Quantity: 2; Cross-Sectional Size: B; Style Designator: PLAIN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3030-00-117-9285 still in active supply?

NSN 3030-00-117-9285 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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