PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

474BWrench,spanner

Martin Sprocket and Gear Inc · NSN 5120-01-337-0507 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-337-0507 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-337-0507. Primary manufacturer part number: 474B.
Features
  • Wrench,spanner — FSC 5120
  • Circle Range Diameter: 6.125 INCHES MINIMUM AND 8.750 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Style Designator: ADJUSTABLE HOOK
  • Hook Thickness: 0.469 INCHES NOMINAL IN
  • Surface Treatment: OXIDE OVERALL
  • 1 verified cross-reference
  • Primary manufacturer: Martin Sprocket and Gear Inc
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,spanner, cataloged under National Stock Number 5120-01-337-0507, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-337-0507
Primary Part Number474B
Item NameWrench,spanner
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerMartin Sprocket and Gear Inc
StatusACTIVE
Circle Range Diameter6.125 INCHES MINIMUM AND 8.750 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Style DesignatorADJUSTABLE HOOK
Hook Thickness0.469 INCHES NOMINAL IN
Surface TreatmentOXIDE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5999-00-023-9731474B INTERCHANGEABLE
Delay Line
Cardwell Condenser Corp Lapointe-Admiral Div
5120-00-293-1068 INTERCHANGEABLE
Wrench,spanner
5120-01-081-7474 INTERCHANGEABLE
Wrench,spanner
5120-01-451-3416 INTERCHANGEABLE
Wrench,spanner
Cross-Reference Index
Part NumberManufacturer
474B PRIMARY Martin Sprocket and Gear Inc (USA)
Related Parts
5999-00-023-9731INTERCHANGEABLE
DELAY LINE
474B
5120-00-293-1068INTERCHANGEABLE
WRENCH,SPANNER
5120-01-081-7474INTERCHANGEABLE
WRENCH,SPANNER
5120-01-451-3416INTERCHANGEABLE
WRENCH,SPANNER

Frequently Asked Questions

What is NSN 5120-01-337-0507?

NSN 5120-01-337-0507 is a Wrench,spanner, manufactured by Martin Sprocket and Gear Inc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-337-0507?

NSN 5120-01-337-0507 has 1 cross-referenced part number: 474B (Martin Sprocket and Gear Inc).

What NSN replaces 5120-01-337-0507?

There are 4 known substitutes for 5120-01-337-0507: 5999-00-023-9731, 5120-00-293-1068, 5120-01-081-7474 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 474B?

Key specifications for 474B: Circle Range Diameter: 6.125 INCHES MINIMUM AND 8.750 INCHES MAXIMUM IN; Material: STEEL OVERALL; Style Designator: ADJUSTABLE HOOK; Overall Length: 13.750 INCHES NOMINAL IN. 6 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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