PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J3045Wrench,open End

The Stanley Works Dba Stanley Proto · NSN 5120-01-399-8778 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-8778 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-8778. Primary manufacturer part number: J3045.
Features
  • Wrench,open End — FSC 5120
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Shape: OVAL BOTH ENDS INTERNAL
  • Style Designator: DOUBLE HEAD
  • Small End Head Angle: 15.0 DEGREES NOMINAL
  • Wrenching Surface Size: 0.938 INCHES NOMINAL FIRST END IN
  • Large End Head Angle: 15.0 DEGREES NOMINAL
  • Wrenching Surface Size: 1.000 INCHES NOMINAL SECOND END IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End, cataloged under National Stock Number 5120-01-399-8778, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 9 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
NSN5120-01-399-8778
Primary Part NumberJ3045
Item NameWrench,open End
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusCANCELLED
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface ShapeOVAL BOTH ENDS INTERNAL
Style DesignatorDOUBLE HEAD
Small End Head Angle15.0 DEGREES NOMINAL
Wrenching Surface Size0.938 INCHES NOMINAL FIRST END IN
Large End Head Angle15.0 DEGREES NOMINAL
Wrenching Surface Size1.000 INCHES NOMINAL SECOND END IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5365-00-003-412430-45 INTERCHANGEABLE
Shim Set
Cone Drive Operations Inc
4730-00-121-5937A733XS-79CFG INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
3610-00-185-04867130 INTERCHANGEABLE
Slide,wire Holder
Stanley Bostitch Inc Sub of the Stanley Works Corp
5940-00-194-773014GGND INTERCHANGEABLE
Post,binding,electrical
Eby Group, Llc, the Dba Eby Company Div Eby Company
5940-00-194-773114GANT INTERCHANGEABLE
Post,binding,electrical
Eby Group, Llc, the Dba Eby Company Div Eby Company
5940-00-258-1837604908-000 INTERCHANGEABLE
Post,binding,electrical
Stromberg-Carlson Corp a Plessey Telecommunications Co
6515-00-321-760070-9204 INTERCHANGEABLE
Curette,adenoid
Sklar Corporation Dba Sklar Instruments
1615-00-397-12883045 INTERCHANGEABLE
Guard,tail Rotor Shaft
Sequal Inc
6220-00-402-4490 INTERCHANGEABLE
Lens,light
6515-00-590-0754 INTERCHANGEABLE
Suction Kit,tracheal
Cross-Reference Index
Part NumberManufacturer
3045 The Stanley Works Dba Stanley Proto (USA)
20808 The Stanley Works Pty Ltd (AUS)
20426 Atkins Carlyle Ltd (AUS)
1ANK4 W.w. Grainger, Inc. Div Government Sales Division (USA)
59003032 King Tony Tools Co., Ltd
03955110 Blackwood J. Blackwood & Son Pty Ltd (AUS)
03955110 J Blackwood & Son Ltd (AUS)
SCMT20808 The Stanley Works Pty Ltd (AUS)
713-0 The Stanley Works Pty Ltd (AUS)
J3045 The Stanley Works Pty Ltd (AUS)
20426 The Stanley Works Pty Ltd (AUS)
07338209 Blackwood J. Blackwood & Son Pty Ltd (AUS)
J3045 PRIMARY The Stanley Works Dba Stanley Proto (USA)
STP 3045 Kipper Tool Company Dba Kipper Management Inc (USA)
SOE1516-1 Jbs Tools (AUS)
Related Parts
5365-00-003-4124INTERCHANGEABLE
SHIM SET
30-45
4730-00-121-5937INTERCHANGEABLE
NIPPLE,PIPE
A733XS-79CFG
3610-00-185-0486INTERCHANGEABLE
SLIDE,WIRE HOLDER
7130
5940-00-194-7730INTERCHANGEABLE
POST,BINDING,ELECTRICAL
14GGND
5940-00-194-7731INTERCHANGEABLE
POST,BINDING,ELECTRICAL
14GANT
5940-00-258-1837INTERCHANGEABLE
POST,BINDING,ELECTRICAL
604908-000
6515-00-321-7600INTERCHANGEABLE
CURETTE,ADENOID
70-9204
1615-00-397-1288INTERCHANGEABLE
GUARD,TAIL ROTOR SHAFT
3045
6220-00-402-4490INTERCHANGEABLE
LENS,LIGHT
6515-00-590-0754INTERCHANGEABLE
SUCTION KIT,TRACHEAL
5330-00-599-4871INTERCHANGEABLE
GASKET
2034
2925-00-640-7864INTERCHANGEABLE
SHIELD,IGNITION SYSTEM DISTRIBUT
7130

Frequently Asked Questions

What is NSN 5120-01-399-8778?

NSN 5120-01-399-8778 is a Wrench,open End, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-399-8778?

NSN 5120-01-399-8778 has 15 cross-referenced part numbers: 3045 (The Stanley Works Dba Stanley Proto), 20808 (The Stanley Works Pty Ltd), 20426 (Atkins Carlyle Ltd), 1ANK4 (W.w. Grainger, Inc. Div Government Sales Division), 59003032 (King Tony Tools Co., Ltd) and 10 more.

What NSN replaces 5120-01-399-8778?

There are 12 known substitutes for 5120-01-399-8778: 5365-00-003-4124, 4730-00-121-5937, 3610-00-185-0486 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of J3045?

Key specifications for J3045: Surface Treatment: CHROMIUM OVERALL; Wrenching Surface Shape: OVAL BOTH ENDS INTERNAL; Style Designator: DOUBLE HEAD; Small End Head Angle: 15.0 DEGREES NOMINAL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-399-8778 still in active supply?

NSN 5120-01-399-8778 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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