PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J1236MWrench,box and Open End,combinat

Proto Tool Company Inc · NSN 5120-01-537-7340 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-537-7340 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-537-7340. Primary manufacturer part number: J1236M.
Features
  • Wrench,box and Open End,combinat — FSC 5120
  • Wrenching Surface Shape: 12 POINT SECOND END INTERNAL
  • Wrenching Surface Size: 36.0 MILLIMETERS NOMINAL BOTH ENDS MM
  • Wrenching End Offset Angle: 15.0 DEGREES NOMINAL
  • Head Angle: 15.0 DEGREES NOMINAL
  • Wrenching Surface Shape: OVAL FIRST END INTERNAL
  • Material: STEEL OVERALL
  • Surface Treatment: CHROMIUM OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box and Open End,combinat, cataloged under National Stock Number 5120-01-537-7340, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Proto Tool Company Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-537-7340
Primary Part NumberJ1236M
Item NameWrench,box and Open End,combinat
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerProto Tool Company Inc
StatusACTIVE
Wrenching Surface Shape12 POINT SECOND END INTERNAL
Wrenching Surface Size36.0 MILLIMETERS NOMINAL BOTH ENDS MM
Wrenching End Offset Angle15.0 DEGREES NOMINAL
Head Angle15.0 DEGREES NOMINAL
Wrenching Surface ShapeOVAL FIRST END INTERNAL
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Style DesignatorOFFSET
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5133-00-266-94649/16 2510/950 INTERCHANGEABLE
Drill,twist
Greenfield Industries Inc
5815-00-322-5610SM-B-187219 INTERCHANGEABLE
Bar,selector,teletypewriter
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5930-00-843-298911536 INTERCHANGEABLE
Switch,toggle
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
4730-00-869-5246 INTERCHANGEABLE
Cap,quick Disconnect
5940-00-978-9799 INTERCHANGEABLE
Board Assembly
5930-01-106-3377F1901 INTERCHANGEABLE
Push Button
Itt Schadow Inc
3433-01-396-98491-2242 INTERCHANGEABLE
Cutting Machine,plasma Arc
Thermal Dynamics Corp
5120-01-399-8827 INTERCHANGEABLE
Wrench,box and Open End,combinat
7530-01-461-858611536 INTERCHANGEABLE
Index Sheet Set,loose-Leaf Binde
Avery Business Systems Div
5120-01-652-0523 INTERCHANGEABLE
Wrench,box and Open End,combinat
Cross-Reference Index
Part NumberManufacturer
11536 Williams J H Industrial Products Inc (USA)
11536 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
J1236M PRIMARY Proto Tool Company Inc (USA)
Related Parts
5133-00-266-9464INTERCHANGEABLE
DRILL,TWIST
9/16 2510/950
5815-00-322-5610INTERCHANGEABLE
BAR,SELECTOR,TELETYPEWRITER
SM-B-187219
5930-00-843-2989INTERCHANGEABLE
SWITCH,TOGGLE
11536
4730-00-869-5246INTERCHANGEABLE
CAP,QUICK DISCONNECT
5940-00-978-9799INTERCHANGEABLE
BOARD ASSEMBLY
5930-01-106-3377INTERCHANGEABLE
PUSH BUTTON
F1901
3433-01-396-9849INTERCHANGEABLE
CUTTING MACHINE,PLASMA ARC
1-2242
5120-01-399-8827INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
7530-01-461-8586INTERCHANGEABLE
INDEX SHEET SET,LOOSE-LEAF BINDE
11536
5120-01-652-0523INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT

Frequently Asked Questions

What is NSN 5120-01-537-7340?

NSN 5120-01-537-7340 is a Wrench,box and Open End,combinat, manufactured by Proto Tool Company Inc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-537-7340?

NSN 5120-01-537-7340 has 3 cross-referenced part numbers: 11536 (Williams J H Industrial Products Inc), 11536 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), J1236M (Proto Tool Company Inc).

What NSN replaces 5120-01-537-7340?

There are 10 known substitutes for 5120-01-537-7340: 5133-00-266-9464, 5815-00-322-5610, 5930-00-843-2989 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of J1236M?

Key specifications for J1236M: Wrenching Surface Shape: 12 POINT SECOND END INTERNAL; Special Features: ANTI-SLIP DESIGN OPEN END; SATIN FINISH; Wrenching Surface Size: 36.0 MILLIMETERS NOMINAL BOTH ENDS MM; Overall Length: 19.375 INCHES NOMINAL IN. 10 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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