PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B-2523DWrench,spanner

Bird-Johnson Propeller Company, Llc · NSN 5120-01-029-9968 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-029-9968 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-029-9968. Primary manufacturer part number: B-2523D.
Features
  • Wrench,spanner — FSC 5120
  • Opening Diameter: 4.375 INCHES NOMINAL IN
  • Style Designator: PIN
  • Material: STEEL OVERALL
  • Pin Diameter: 0.500 INCHES NOMINAL IN
  • 3 verified cross-references
  • Primary manufacturer: Bird-Johnson Propeller Company, Llc
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,spanner, cataloged under National Stock Number 5120-01-029-9968, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Bird-Johnson Propeller Company, Llc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-029-9968
Primary Part NumberB-2523D
Item NameWrench,spanner
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerBird-Johnson Propeller Company, Llc
StatusACTIVE
Opening Diameter4.375 INCHES NOMINAL IN
Style DesignatorPIN
MaterialSTEEL OVERALL
Pin Diameter0.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5120-01-054-8519S 12 24 INTERCHANGEABLE
Socket,socket Wrench
Metric and Multistandard Components Corp
5120-01-105-7881B2523D INTERCHANGEABLE
Wrench,spanner
Walz & Krenzer Inc Div Mapeco Products
5345-01-228-574666243528573 INTERCHANGEABLE
Wheel,abrasive
Saint-Gobain Abrasives Inc
Cross-Reference Index
Part NumberManufacturer
B-2523D Bird-Johnson Propeller Company, Llc (USA)
SK2454 Walz & Krenzer Inc Div Mapeco Products (USA)
S-1-2-24 Bird-Johnson Propeller Company, Llc (USA)
Related Parts
5120-01-054-8519INTERCHANGEABLE
SOCKET,SOCKET WRENCH
S 12 24
5120-01-105-7881INTERCHANGEABLE
WRENCH,SPANNER
B2523D
5345-01-228-5746INTERCHANGEABLE
WHEEL,ABRASIVE
66243528573

Frequently Asked Questions

What is NSN 5120-01-029-9968?

NSN 5120-01-029-9968 is a Wrench,spanner, manufactured by Bird-Johnson Propeller Company, Llc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-029-9968?

NSN 5120-01-029-9968 has 3 cross-referenced part numbers: B-2523D (Bird-Johnson Propeller Company, Llc), SK2454 (Walz & Krenzer Inc Div Mapeco Products), S-1-2-24 (Bird-Johnson Propeller Company, Llc).

What NSN replaces 5120-01-029-9968?

There are 3 known substitutes for 5120-01-029-9968: 5120-01-054-8519, 5120-01-105-7881, 5345-01-228-5746. Verify interchangeability with system specifications before substitution.

What are the specifications of B-2523D?

Key specifications for B-2523D: Opening Diameter: 4.375 INCHES NOMINAL IN; Overall Length: 16.000 INCHES NOMINAL IN; Style Designator: PIN; Material: STEEL OVERALL. 5 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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