PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R-31-1Ratchet Head,socket Wrench Handl

Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc · NSN 5120-01-587-5731 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-587-5731 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-587-5731. Primary manufacturer part number: R-31-1.
Features
  • Ratchet Head,socket Wrench Handl — FSC 5120
  • 2 verified cross-references
  • Primary manufacturer: Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Ratchet Head,socket Wrench Handl, cataloged under National Stock Number 5120-01-587-5731, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-587-5731
Primary Part NumberR-31-1
Item NameRatchet Head,socket Wrench Handl
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerZephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2520-00-754-009317230 INTERCHANGEABLE
Cage,universal Joint
Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products
3020-00-857-0334R3-11 INTERCHANGEABLE
Gear-Slip Clutch,spur
Roller Bearing Co of America, Inc Div Pic Design
6675-00-982-1980808 INTERCHANGEABLE
Template,drafting
Airmate Co., Inc.
6515-01-058-5952R311 INTERCHANGEABLE
Airway-Esophageal Obturator
Brunswick Biomedial Technologies Inc
5920-01-604-7719R3-11 INTERCHANGEABLE
Fuseholder,receptacle
Sci Technology, Inc
Cross-Reference Index
Part NumberManufacturer
R-31-1 PRIMARY Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc (USA)
R2-31 Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc (USA)
Related Parts
2520-00-754-0093INTERCHANGEABLE
CAGE,UNIVERSAL JOINT
17230
3020-00-857-0334INTERCHANGEABLE
GEAR-SLIP CLUTCH,SPUR
R3-11
6675-00-982-1980INTERCHANGEABLE
TEMPLATE,DRAFTING
808
6515-01-058-5952INTERCHANGEABLE
AIRWAY-ESOPHAGEAL OBTURATOR
R311
5920-01-604-7719INTERCHANGEABLE
FUSEHOLDER,RECEPTACLE
R3-11

Frequently Asked Questions

What is NSN 5120-01-587-5731?

NSN 5120-01-587-5731 is a Ratchet Head,socket Wrench Handl, manufactured by Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-587-5731?

NSN 5120-01-587-5731 has 2 cross-referenced part numbers: R-31-1 (Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc), R2-31 (Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc).

What NSN replaces 5120-01-587-5731?

There are 5 known substitutes for 5120-01-587-5731: 2520-00-754-0093, 3020-00-857-0334, 6675-00-982-1980 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R-31-1?

Key specifications for R-31-1: Part Name Assigned by Controlling Agency: STRAIGHT RATCHET HEAD HANDLE; Special Features: TOOL CONFIGURATION IS 5/16" SOCKET FLUSH. 2 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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