PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B3404BAdjusting Tool,brake Shoe

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-00-596-1034 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-596-1034 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-596-1034. Primary manufacturer part number: B3404B.
Features
  • Adjusting Tool,brake Shoe — FSC 5120
  • Style Designator: HOOK ENDS, OPPOSITE
  • Nondefinitive Spec/std Data: 1 SIZE AND A DESIGN
  • 5 verified cross-references
  • Primary manufacturer: Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Adjusting Tool,brake Shoe, cataloged under National Stock Number 5120-00-596-1034, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 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
NSN5120-00-596-1034
Primary Part NumberB3404B
Item NameAdjusting Tool,brake Shoe
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusCANCELLED
Style DesignatorHOOK ENDS, OPPOSITE
Nondefinitive Spec/std Data1 SIZE AND A DESIGN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3120-00-061-1571 INTERCHANGEABLE
Bushing,sleeve
5330-00-082-10452566 INTERCHANGEABLE
Gasket
Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp
5330-00-172-67232566 INTERCHANGEABLE
Gasket
Cummins Inc.
5305-00-224-114530155-2-6 INTERCHANGEABLE
Screw,cap,socket Head
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
5915-00-256-1482 INTERCHANGEABLE
Suppressor,parasitic
5325-00-276-6056 INTERCHANGEABLE
Grommet,nonmetallic
6640-00-294-0710 INTERCHANGEABLE
Beaker,laboratory
5120-00-595-8165 INTERCHANGEABLE
Adjusting Tool,brake Shoe
5915-01-038-6201 INTERCHANGEABLE
Filter,low Pass
5950-01-049-82892-566 INTERCHANGEABLE
Reactor
Eldec Aerospace Corp
Cross-Reference Index
Part NumberManufacturer
B3404B PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
GGG-A-145 SZ1DEA General Services Administration Federal Supply Service (USA)
5120-00-596-1034 PRIMARY Woodings Verona Tool Works Inc (USA)
2566 Bonney Forge Corp (USA)
GGG-A-145 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
3120-00-061-1571INTERCHANGEABLE
BUSHING,SLEEVE
5330-00-082-1045INTERCHANGEABLE
GASKET
2566
5330-00-172-6723INTERCHANGEABLE
GASKET
2566
5305-00-224-1145INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
30155-2-6
5915-00-256-1482INTERCHANGEABLE
SUPPRESSOR,PARASITIC
5325-00-276-6056INTERCHANGEABLE
GROMMET,NONMETALLIC
6640-00-294-0710INTERCHANGEABLE
BEAKER,LABORATORY
5120-00-595-8165INTERCHANGEABLE
ADJUSTING TOOL,BRAKE SHOE
5915-01-038-6201INTERCHANGEABLE
FILTER,LOW PASS
5950-01-049-8289INTERCHANGEABLE
REACTOR
2-566
6930-01-095-9792INTERCHANGEABLE
RING,FLANG
2566
4820-01-419-5620INTERCHANGEABLE
VALVE,SAFETY RELIEF
2566

Frequently Asked Questions

What is NSN 5120-00-596-1034?

NSN 5120-00-596-1034 is a Adjusting Tool,brake Shoe, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-596-1034?

NSN 5120-00-596-1034 has 5 cross-referenced part numbers: B3404B (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), GGG-A-145 SZ1DEA (General Services Administration Federal Supply Service), 5120-00-596-1034 (Woodings Verona Tool Works Inc), 2566 (Bonney Forge Corp), GGG-A-145 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5120-00-596-1034?

There are 12 known substitutes for 5120-00-596-1034: 3120-00-061-1571, 5330-00-082-1045, 5330-00-172-6723 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B3404B?

Key specifications for B3404B: Special Features: FOR USE ON BENDIX SELF-ADJUSTING BRAKES AND OTHER BRAKES WITH STAR ADJUSTING NUT (EXCEPT CHEVROLET); 17/32 IN. W X 1/32 IN. THICK TIPS; 8-3/16 IN. O/A LG IN; Style Designator: HOOK ENDS, OPPOSITE; Nondefinitive Spec/std Data: 1 SIZE AND A DESIGN. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-596-1034 still in active supply?

NSN 5120-00-596-1034 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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