PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.300 CAT 14 TY1CLAST1Wrench,torque

General Services Administration Federal Supply Service · NSN 5120-00-221-7971 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-221-7971 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-221-7971. Primary manufacturer part number: B107.300 CAT 14 TY1CLAST1.
Features
  • Wrench,torque — FSC 5120
  • Surface Treatment: CHROMIUM OVERALL
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND A CLASS AND 1 STYLE
  • Drive End Shape: SQUARE SINGLE END EXTERNAL
  • Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN
  • Specification/standard Data: 05047-ASME B107.300 CAT 14 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Torque Indicating Mechanism: PLATE WITH POINTER
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,torque, cataloged under National Stock Number 5120-00-221-7971, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is General Services Administration Federal Supply Service. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 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
NSN5120-00-221-7971
Primary Part NumberB107.300 CAT 14 TY1CLAST1
Item NameWrench,torque
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusCANCELLED
Surface TreatmentCHROMIUM OVERALL
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data1 TYPE AND A CLASS AND 1 STYLE
Drive End ShapeSQUARE SINGLE END EXTERNAL
Drive Surface Size0.250 INCHES NOMINAL SINGLE END IN
Specification/standard Data05047-ASME B107.300 CAT 14 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Torque Indicating MechanismPLATE WITH POINTER
Torque Scale Graduation1.00 INCH-POUNDS IN
Torque Capacity0.0 INCH-POUNDS MINIMUM AND 25.0 INCH-POUNDS MAXIMUM IN
Style DesignatorDEFLECTING FRAME END DRIVE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-116-2829 INTERCHANGEABLE
Wrench,torque
5120-00-177-7337 INTERCHANGEABLE
Wrench,torque
5120-00-221-7947 INTERCHANGEABLE
Wrench,torque
5120-00-247-2536 INTERCHANGEABLE
Wrench,torque
5120-00-247-2540 INTERCHANGEABLE
Wrench,torque
5120-00-529-2552 INTERCHANGEABLE
Wrench,torque
5120-00-541-3001 INTERCHANGEABLE
Wrench,torque
5120-00-542-5681 INTERCHANGEABLE
Wrench,torque
5120-00-580-7397 INTERCHANGEABLE
Wrench,torque
5120-00-618-4433STS-10 INTERCHANGEABLE
Wrench,torque
Seekonk Manufacturing Company, Inc. Dba Seekonk Manufacturing Co Inc
Cross-Reference Index
Part NumberManufacturer
B107.300 CAT 14 TY1CLAST1 General Services Administration Federal Supply Service (USA)
B107.300 The American Society of Mechanical Engineers (USA)
STS-25 Apco Mossberg Co (USA)
B107.14 The American Society of Mechanical Engineers (USA)
A-A-1274 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
B107.14 TY1CLAST1 General Services Administration Federal Supply Service (USA)
B107.14M The American Society of Mechanical Engineers (USA)
B107.14M TY1CLAST1 General Services Administration Federal Supply Service (USA)
Related Parts
5120-00-116-2829INTERCHANGEABLE
WRENCH,TORQUE
5120-00-177-7337INTERCHANGEABLE
WRENCH,TORQUE
5120-00-221-7947INTERCHANGEABLE
WRENCH,TORQUE
5120-00-247-2536INTERCHANGEABLE
WRENCH,TORQUE
5120-00-247-2540INTERCHANGEABLE
WRENCH,TORQUE
5120-00-529-2552INTERCHANGEABLE
WRENCH,TORQUE
5120-00-541-3001INTERCHANGEABLE
WRENCH,TORQUE
5120-00-542-5681INTERCHANGEABLE
WRENCH,TORQUE
5120-00-580-7397INTERCHANGEABLE
WRENCH,TORQUE
5120-00-618-4433INTERCHANGEABLE
WRENCH,TORQUE
STS-10
5120-00-684-0404INTERCHANGEABLE
WRENCH,TORQUE
5120-00-729-6427INTERCHANGEABLE
WRENCH,TORQUE

Frequently Asked Questions

What is NSN 5120-00-221-7971?

NSN 5120-00-221-7971 is a Wrench,torque, manufactured by General Services Administration Federal Supply Service, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-221-7971?

NSN 5120-00-221-7971 has 8 cross-referenced part numbers: B107.300 CAT 14 TY1CLAST1 (General Services Administration Federal Supply Service), B107.300 (The American Society of Mechanical Engineers), STS-25 (Apco Mossberg Co), B107.14 (The American Society of Mechanical Engineers), A-A-1274 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 3 more.

What NSN replaces 5120-00-221-7971?

There are 12 known substitutes for 5120-00-221-7971: 5120-00-116-2829, 5120-00-177-7337, 5120-00-221-7947 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.300 CAT 14 TY1CLAST1?

Key specifications for B107.300 CAT 14 TY1CLAST1: Surface Treatment: CHROMIUM OVERALL; Material: STEEL OVERALL; Nondefinitive Spec/std Data: 1 TYPE AND A CLASS AND 1 STYLE; Drive End Shape: SQUARE SINGLE END EXTERNAL. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-221-7971 still in active supply?

NSN 5120-00-221-7971 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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