PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M-55Mattock

Ampco Partners, Ltd. Dba Ampco Safety Tools · NSN 5120-00-138-5530 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-138-5530 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-138-5530. Primary manufacturer part number: M-55.
Features
  • Mattock — FSC 5120
  • Hazard Protection Feature: NONMAGNETIC AND NONSPARKING
  • Handle Length: 17.000 INCHES IN
  • Head Weight: 2.5 POUNDS LBS
  • Unit Type: CUTTER
  • Handle: FURNISHED
  • 2 verified cross-references
  • Primary manufacturer: Ampco Partners, Ltd. Dba Ampco Safety Tools
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Mattock, cataloged under National Stock Number 5120-00-138-5530, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Ampco Partners, Ltd. Dba Ampco Safety Tools. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-138-5530
Primary Part NumberM-55
Item NameMattock
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerAmpco Partners, Ltd. Dba Ampco Safety Tools
StatusACTIVE
Hazard Protection FeatureNONMAGNETIC AND NONSPARKING
Handle Length17.000 INCHES IN
Head Weight2.5 POUNDS LBS
Unit TypeCUTTER
HandleFURNISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3456-00-147-8961 INTERCHANGEABLE
Mandrel,roller Tube Expander
2320-00-200-18788358973 INTERCHANGEABLE
Truck,cargo
U S Army Tank Automotive Command Amsta-Im-Mm
5930-00-201-45153095-03LINE258 INTERCHANGEABLE
Switch,toggle
Electric Boat Corporation Div General Dynamics Electric Boat
3455-00-224-3656326-10 INTERCHANGEABLE
Cutter,milling,metal Slitting
Kennametal Inc. Div Kennametal Industrial Products Group
2320-00-391-05708358724 INTERCHANGEABLE
Truck,cargo
U S Army Tank Automotive Command Amsta-Im-Mm
1377-00-764-561710534225 INTERCHANGEABLE
Ignition Element,electrical
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
6135-00-812-9039ZM9 INTERCHANGEABLE
Battery,nonrechargeable
Yosemite Investment Inc Dba North American Capacitor Co
6135-00-985-7845003-360013R00 INTERCHANGEABLE
Battery,nonrechargeable
Insitu, Inc.
5905-01-060-4453 INTERCHANGEABLE
Resistor,fixed,wire Wound
5342-01-253-67487408000001 INTERCHANGEABLE
Chamber,lock
Gamma Products Inc
Cross-Reference Index
Part NumberManufacturer
M-55 PRIMARY Ampco Partners, Ltd. Dba Ampco Safety Tools (USA)
M-55 Ampco Metal Inc. Dba Ampco Metal Inc (USA)
Related Parts
3456-00-147-8961INTERCHANGEABLE
MANDREL,ROLLER TUBE EXPANDER
2320-00-200-1878INTERCHANGEABLE
TRUCK,CARGO
8358973
5930-00-201-4515INTERCHANGEABLE
SWITCH,TOGGLE
3095-03LINE258
3455-00-224-3656INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
326-10
2320-00-391-0570INTERCHANGEABLE
TRUCK,CARGO
8358724
1377-00-764-5617INTERCHANGEABLE
IGNITION ELEMENT,ELECTRICAL
10534225
6135-00-812-9039INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
ZM9
6135-00-985-7845INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
003-360013R00
5905-01-060-4453INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5342-01-253-6748INTERCHANGEABLE
CHAMBER,LOCK
7408000001
4320-01-270-5834INTERCHANGEABLE
PUMP UNIT,CENTRIFUGAL
M55
7710-01-721-7895INTERCHANGEABLE
VIBRAPHONE,CHROMATIC
M55

Frequently Asked Questions

What is NSN 5120-00-138-5530?

NSN 5120-00-138-5530 is a Mattock, manufactured by Ampco Partners, Ltd. Dba Ampco Safety Tools, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-138-5530?

NSN 5120-00-138-5530 has 2 cross-referenced part numbers: M-55 (Ampco Partners, Ltd. Dba Ampco Safety Tools), M-55 (Ampco Metal Inc. Dba Ampco Metal Inc).

What NSN replaces 5120-00-138-5530?

There are 12 known substitutes for 5120-00-138-5530: 3456-00-147-8961, 2320-00-200-1878, 5930-00-201-4515 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M-55?

Key specifications for M-55: Hazard Protection Feature: NONMAGNETIC AND NONSPARKING; Handle Length: 17.000 INCHES IN; Head Weight: 2.5 POUNDS LBS; Unit Type: CUTTER. 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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