PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-7034Pulley,groove

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 3020-00-277-1123 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-277-1123 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-277-1123. Primary manufacturer part number: MIL-DTL-7034.
Features
  • Pulley,groove — FSC 3020
  • Distance From Outside Flange/rim to Hub End and Location: 0.101 INCHES NOMINAL BOTH ENDS IN
  • Material: PLASTIC PHENOLIC OVERALL
  • Criticality Code Justification: FEAT
  • Bore Feature: INCLUDED
  • Web/spoke Relationship to Face Centerline: NOT OFFSET
  • Split Hub Feature: NOT INCLUDED
  • Lightening Hole: NOT INCLUDED
Applications
  • Applications requiring Plastic Phenolic Overall construction
General Description

The Pulley,groove, cataloged under National Stock Number 3020-00-277-1123, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 12 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
NSN3020-00-277-1123
Primary Part NumberMIL-DTL-7034
Item NamePulley,groove
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Distance From Outside Flange/rim to Hub End and Location0.101 INCHES NOMINAL BOTH ENDS IN
MaterialPLASTIC PHENOLIC OVERALL
Criticality Code JustificationFEAT
Bore FeatureINCLUDED
Web/spoke Relationship to Face CenterlineNOT OFFSET
Split Hub FeatureNOT INCLUDED
Lightening HoleNOT INCLUDED
Face Width0.422 INCHES NOMINAL IN
Bearing TypeBALL
Unable to DecodeUNABLE TO DECODE
Counterbore FeatureNOT INCLUDED
Groove Quantity1
Integral Cooling VaneNOT INCLUDED
Hub Outside Diameter0.515 INCHES NOMINAL BOTH ENDS IN
Bore TypeSTRAIGHT
Bearing Quantity1
Groove ShapeU
Design FormPLAIN
Unable to DecodeUNABLE TO DECODE
BearingsINCLUDED
Groove Radius0.097 INCHES NOMINAL IN
Groove Depth0.250 INCHES NOMINAL IN
Bore Length0.625 INCHES NOMINAL IN
Bore Diameter0.3145 INCHES NOMINAL IN
Outside Diameter3.005 INCHES NOMINAL IN
Groove Width0.275 INCHES NOMINAL IN
Style DesignatorPLAIN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4110-00-201-4937 INTERCHANGEABLE
Refrigeration Unit,mechanical
5935-00-232-372320220-2 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Raytheon Company Dba Raytheon
3020-00-277-1124 INTERCHANGEABLE
Pulley,groove
3020-00-277-1128 INTERCHANGEABLE
Pulley,groove
3020-00-528-0501 INTERCHANGEABLE
Pulley,groove
3020-00-528-0502 INTERCHANGEABLE
Pulley,groove
3020-00-528-0511 INTERCHANGEABLE
Pulley,groove
3020-00-528-7993 INTERCHANGEABLE
Pulley,groove
3020-00-541-3227 INTERCHANGEABLE
Pulley,groove
6110-00-582-7504202202 INTERCHANGEABLE
Card,extender
Marine Electric Systems Inc
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-7034 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
20220-2 Ralmark Co (USA)
MIL-DTL-7034/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS20220-2 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS20220-2 Ralmark Co (USA)
AN220-2 Aeronautical Standards Group Dept of Navy and Air Force (USA)
3020PL1559532 Jednolity Indeks Materialowy - Uniform Material Index (POL)
20220-2 Witco Chemical Corp Allied Kelite Products Div (USA)
481 652 Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company (USA)
NAS37702 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
20220-2 Atco Pulley Corp
20220-2 Arvan, Inc. Dba Aerospace Division (USA)
20220-2 Bell-Memphis Inc (USA)
9453107112 Pilatus Aircraft Ltd (CHE)
Related Parts
4110-00-201-4937INTERCHANGEABLE
REFRIGERATION UNIT,MECHANICAL
5935-00-232-3723INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
20220-2
3020-00-277-1124INTERCHANGEABLE
PULLEY,GROOVE
3020-00-277-1128INTERCHANGEABLE
PULLEY,GROOVE
3020-00-528-0501INTERCHANGEABLE
PULLEY,GROOVE
3020-00-528-0502INTERCHANGEABLE
PULLEY,GROOVE
3020-00-528-0511INTERCHANGEABLE
PULLEY,GROOVE
3020-00-528-7993INTERCHANGEABLE
PULLEY,GROOVE
3020-00-541-3227INTERCHANGEABLE
PULLEY,GROOVE
6110-00-582-7504INTERCHANGEABLE
CARD,EXTENDER
202202
3020-00-618-2458INTERCHANGEABLE
PULLEY,GROOVE
5342-00-710-7458INTERCHANGEABLE
LATCH ASSY,FIREWALL

Frequently Asked Questions

What is NSN 3020-00-277-1123?

NSN 3020-00-277-1123 is a Pulley,groove, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-277-1123?

NSN 3020-00-277-1123 has 14 cross-referenced part numbers: MIL-DTL-7034 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 20220-2 (Ralmark Co), MIL-DTL-7034/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS20220-2 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS20220-2 (Ralmark Co) and 9 more.

What NSN replaces 3020-00-277-1123?

There are 12 known substitutes for 3020-00-277-1123: 4110-00-201-4937, 5935-00-232-3723, 3020-00-277-1124 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-7034?

Key specifications for MIL-DTL-7034: End Item Identification: AIRCRAFT, EAGLE F-15; Overall Length: 0.625 INCHES NOMINAL IN; Special Features: IF REQUISITION IS NOT FOR FMS, OVERSEAS SHIPMENTS, NAVAL VESSELS, PRIORITY CODES 1,2,OR 3, OR INDIVIDUAL REQUISITIONS OVER 25000 DOLLARS, THEN DIRECT VENDOR DELIVERY NSN 3020-01-391-0799 IS AVAILABLE AT 15.7% DISCOUNT.;WEAPON SYSTEM ESSENTIAL; Distance From Outside Flange/rim to Hub End and Location: 0.101 INCHES NOMINAL BOTH ENDS IN. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-277-1123 still in active supply?

NSN 3020-00-277-1123 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.
PartsTable Design LLC · partstable.com