PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19Wrench,open End

Martin Sprocket and Gear Inc · NSN 5120-00-293-1312 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-293-1312 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-293-1312. Primary manufacturer part number: 19.
Features
  • Wrench,open End — FSC 5120
  • Wrenching Surface Size: 3.875 INCHES NOMINAL SINGLE END IN
  • Nondefinitive Spec/std Data: 5 TYPE
  • Material: STEEL OVERALL
  • Wrenching Surface Shape: OVAL SINGLE END INTERNAL
  • Head Angle: 15.0 DEGREES NOMINAL
  • Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM
  • Style Designator: SINGLE HEAD
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End, cataloged under National Stock Number 5120-00-293-1312, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Martin Sprocket and Gear Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-293-1312
Primary Part Number19
Item NameWrench,open End
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerMartin Sprocket and Gear Inc
StatusCANCELLED
Wrenching Surface Size3.875 INCHES NOMINAL SINGLE END IN
Nondefinitive Spec/std Data5 TYPE
MaterialSTEEL OVERALL
Wrenching Surface ShapeOVAL SINGLE END INTERNAL
Head Angle15.0 DEGREES NOMINAL
Hardness Rating40.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM
Style DesignatorSINGLE HEAD
Head Thickness1.812 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4730-00-079-1362 INTERCHANGEABLE
Coupling Half,quick Disconnect
5950-01-103-4846 INTERCHANGEABLE
Transformer,power
6750-01-427-3168 INTERCHANGEABLE
Film,photographic
8130-01-536-8834 INTERCHANGEABLE
Reel,cable
Cross-Reference Index
Part NumberManufacturer
GGG-W-636 TY5 General Services Administration Federal Supply Service (USA)
BW-19 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
19 PRIMARY Martin Sprocket and Gear Inc (USA)
19 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
30-0705 Martin Sprocket and Gear Inc (USA)
12Z710PC22 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
BW-19 PRIMARY Williams J H Industrial Products Inc (USA)
41W1431 PRIMARY Marine Corps (USA)
Related Parts
4730-00-079-1362INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
5950-01-103-4846INTERCHANGEABLE
TRANSFORMER,POWER
6750-01-427-3168INTERCHANGEABLE
FILM,PHOTOGRAPHIC
8130-01-536-8834INTERCHANGEABLE
REEL,CABLE

Frequently Asked Questions

What is NSN 5120-00-293-1312?

NSN 5120-00-293-1312 is a Wrench,open End, manufactured by Martin Sprocket and Gear Inc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-293-1312?

NSN 5120-00-293-1312 has 9 cross-referenced part numbers: GGG-W-636 TY5 (General Services Administration Federal Supply Service), BW-19 (Trw Inc Hand Tools Div Trw Industrial Products Group), 19 (Martin Sprocket and Gear Inc), 19 (Trw Inc Hand Tools Div Trw Industrial Products Group), 30-0705 (Martin Sprocket and Gear Inc) and 4 more.

What NSN replaces 5120-00-293-1312?

There are 4 known substitutes for 5120-00-293-1312: 4730-00-079-1362, 5950-01-103-4846, 6750-01-427-3168 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 19?

Key specifications for 19: Wrenching Surface Size: 3.875 INCHES NOMINAL SINGLE END IN; Nondefinitive Spec/std Data: 5 TYPE; Material: STEEL OVERALL; Wrenching Surface Shape: OVAL SINGLE END INTERNAL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-293-1312 still in active supply?

NSN 5120-00-293-1312 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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