PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31239Gear,spur

Bell and Howell Phillipsburg Co Corporate Offices · NSN 3020-00-937-6053 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-937-6053 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-937-6053. Primary manufacturer part number: 31239.
Features
  • Gear,spur — FSC 3020
  • Pitch Diameter: 0.5625 INCHES NOMINAL IN
  • Pressure Angle: 20.0000 DEGREES
  • Bore Nominal Diameter: 0.188 INCHES BOTH ENDS IN
  • Material: PLASTIC ACETAL OVERALL
  • Bore Style: PLAIN BOTH ENDS
  • Style Designator: HUBLESS, RECESSED BODY
  • Face Nominal Width: 0.250 INCHES IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Plastic Acetal Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-937-6053, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Bell and Howell Phillipsburg Co Corporate Offices. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-937-6053
Primary Part Number31239
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerBell and Howell Phillipsburg Co Corporate Offices
StatusACTIVE
Pitch Diameter0.5625 INCHES NOMINAL IN
Pressure Angle20.0000 DEGREES
Bore Nominal Diameter0.188 INCHES BOTH ENDS IN
MaterialPLASTIC ACETAL OVERALL
Bore StylePLAIN BOTH ENDS
Style DesignatorHUBLESS, RECESSED BODY
Face Nominal Width0.250 INCHES IN
Nominal Outside Diameter0.625 INCHES IN
Body Recess Nominal Depth0.078 INCHES FIRST END IN
Tooth FormSTANDARD
Body StylePLAIN, SOLID
Teeth Quantity18
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5136-00-224-15075136-00-224-1507 INTERCHANGEABLE
Die,rethreading
General Services Administration Federal Supply Service
5340-00-355-987931239 INTERCHANGEABLE
Spring,loop
Pax Mfg Corp Hammarlund Mfg Co Div
5310-00-365-320631329 INTERCHANGEABLE
Nut,plain,wing
Prestolite Electric Inc
6740-00-443-713231-344 INTERCHANGEABLE
Cap,probe
Pakon Inc Dba Impak Division
5330-00-706-479431239 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5935-00-892-9035SC-C-76412 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6610-00-942-306231329 INTERCHANGEABLE
Case Assy
Aerosonic Llc
1280-01-012-189631239 INTERCHANGEABLE
Retainer Assembly,lower Control
Hamilton Sundstrand Corporation Dba Collins Aerospace
5305-01-099-643911662343 INTERCHANGEABLE
Screw,cap,hexagon Head
U S Army Tank Automotive Command Amsta-Im-Mm
5305-01-317-986431329 INTERCHANGEABLE
Screw,cap,socket Head
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
31239 Bell and Howell Phillipsburg Co Corporate Offices (USA)
31329 Bell and Howell Phillipsburg Co Corporate Offices (USA)
Related Parts
5136-00-224-1507INTERCHANGEABLE
DIE,RETHREADING
5136-00-224-1507
5340-00-355-9879INTERCHANGEABLE
SPRING,LOOP
31239
5310-00-365-3206INTERCHANGEABLE
NUT,PLAIN,WING
31329
6740-00-443-7132INTERCHANGEABLE
CAP,PROBE
31-344
5330-00-706-4794INTERCHANGEABLE
SEAL,PLAIN ENCASED
31239
5935-00-892-9035INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
SC-C-76412
6610-00-942-3062INTERCHANGEABLE
CASE ASSY
31329
1280-01-012-1896INTERCHANGEABLE
RETAINER ASSEMBLY,LOWER CONTROL
31239
5305-01-099-6439INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
11662343
5305-01-317-9864INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
31329
6645-01-451-1265INTERCHANGEABLE
TIMER,INTERVAL
31239
6130-01-556-6869INTERCHANGEABLE
POWER SUPPLY
31239

Frequently Asked Questions

What is NSN 3020-00-937-6053?

NSN 3020-00-937-6053 is a Gear,spur, manufactured by Bell and Howell Phillipsburg Co Corporate Offices, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-937-6053?

NSN 3020-00-937-6053 has 2 cross-referenced part numbers: 31239 (Bell and Howell Phillipsburg Co Corporate Offices), 31329 (Bell and Howell Phillipsburg Co Corporate Offices).

What NSN replaces 3020-00-937-6053?

There are 12 known substitutes for 3020-00-937-6053: 5136-00-224-1507, 5340-00-355-9879, 5310-00-365-3206 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31239?

Key specifications for 31239: Pitch Diameter: 0.5625 INCHES NOMINAL IN; Pressure Angle: 20.0000 DEGREES; Bore Nominal Diameter: 0.188 INCHES BOTH ENDS IN; Material: PLASTIC ACETAL OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.

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