PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3138Ratchet Wheel

New Haven Mfg Corp · NSN 3020-00-739-0807 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-739-0807 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-739-0807. Primary manufacturer part number: 3138.
Features
  • Ratchet Wheel — FSC 3020
  • Surface Treatment: PASSIVATE
  • Material Document and Classification: QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE
  • Surface Treatment Document and Classification: MIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE
  • Teeth Quantity: 36
  • Material: STEEL
  • 1 verified cross-reference
  • Primary manufacturer: New Haven Mfg Corp
Applications
  • Applications requiring Steel construction
General Description

The Ratchet Wheel, cataloged under National Stock Number 3020-00-739-0807, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is New Haven Mfg Corp. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN3020-00-739-0807
Primary Part Number3138
Item NameRatchet Wheel
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNew Haven Mfg Corp
StatusACTIVE
Surface TreatmentPASSIVATE
Material Document and ClassificationQQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE
Surface Treatment Document and ClassificationMIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE
Teeth Quantity36
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-155-6661 INTERCHANGEABLE
Bearing,ball,annular
3439-00-224-75343138-100 INTERCHANGEABLE
Soldering Iron,electric
Assembly Technologies International Inc.
5305-00-531-15153138 INTERCHANGEABLE
Screw,machine
L & L Boiler Maintenance Inc
3439-00-542-0169 INTERCHANGEABLE
Soldering Iron,electric
5960-00-931-698416-03-138-0A INTERCHANGEABLE
Electron Tube
Ballantine Laboratories Inc
6680-00-947-0648DC3138 INTERCHANGEABLE
Counter,rotating
Bowmar Llc Dba Bowmar Instrument Corp
5305-00-954-5631 INTERCHANGEABLE
Screw,machine
5820-00-970-8392 INTERCHANGEABLE
Receiver,transmitte
5360-01-106-13133138 INTERCHANGEABLE
Spring,helical,compression
Aerospace Lighting Corporation
6515-01-233-76223138 INTERCHANGEABLE
Bag,ostomy
Hollister Inc
Cross-Reference Index
Part NumberManufacturer
3138 New Haven Mfg Corp (USA)
Related Parts
3110-00-155-6661INTERCHANGEABLE
BEARING,BALL,ANNULAR
3439-00-224-7534INTERCHANGEABLE
SOLDERING IRON,ELECTRIC
3138-100
5305-00-531-1515INTERCHANGEABLE
SCREW,MACHINE
3138
3439-00-542-0169INTERCHANGEABLE
SOLDERING IRON,ELECTRIC
5960-00-931-6984INTERCHANGEABLE
ELECTRON TUBE
16-03-138-0A
6680-00-947-0648INTERCHANGEABLE
COUNTER,ROTATING
DC3138
5305-00-954-5631INTERCHANGEABLE
SCREW,MACHINE
5820-00-970-8392INTERCHANGEABLE
RECEIVER,TRANSMITTE
5360-01-106-1313INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3138
6515-01-233-7622INTERCHANGEABLE
BAG,OSTOMY
3138
5120-01-367-3868INTERCHANGEABLE
PULLER,MECHANICAL
BT-21
4820-01-369-4784INTERCHANGEABLE
RETAINER,SEAT,VALVE
31-38

Frequently Asked Questions

What is NSN 3020-00-739-0807?

NSN 3020-00-739-0807 is a Ratchet Wheel, manufactured by New Haven Mfg Corp, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-739-0807?

NSN 3020-00-739-0807 has 1 cross-referenced part number: 3138 (New Haven Mfg Corp).

What NSN replaces 3020-00-739-0807?

There are 12 known substitutes for 3020-00-739-0807: 3110-00-155-6661, 3439-00-224-7534, 5305-00-531-1515 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3138?

Key specifications for 3138: End Item Identification: 5815-00-892-1031,TELETYPEWRITER,TT-297/UG; Surface Treatment: PASSIVATE; Material Document and Classification: QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE; Overall Length: 0.140 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com