PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AT556MHolder,sheet Metal,hole

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-046-2937 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-046-2937 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-046-2937. Primary manufacturer part number: AT556M.
Features
  • Holder,sheet Metal,hole — FSC 5120
  • Nondefinitive Spec/std Data: 1 TYPE AND 2 CLASS AND E STYLE AND 1/4 SIZE
  • General Characteristics Item Description: PLIER OPERATED; STANDARD; FOR 1/4 IN. DIA HOLE; 0 TO 1/4 IN. GRIP RANGE; COPPER COLOR CODED; 1/4 IN. DRILL IN
  • 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 Holder,sheet Metal,hole, cataloged under National Stock Number 5120-01-046-2937, 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 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-046-2937
Primary Part NumberAT556M
Item NameHolder,sheet Metal,hole
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusCANCELLED
Nondefinitive Spec/std Data1 TYPE AND 2 CLASS AND E STYLE AND 1/4 SIZE
General Characteristics Item DescriptionPLIER OPERATED; STANDARD; FOR 1/4 IN. DIA HOLE; 0 TO 1/4 IN. GRIP RANGE; COPPER COLOR CODED; 1/4 IN. DRILL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5120-00-197-53445120-00-197-5344 INTERCHANGEABLE
Holder,sheet Metal,edge Grip
General Services Administration Federal Supply Service
5120-00-222-33365120-00-222-3336 INTERCHANGEABLE
Holder,sheet Metal,hole
General Services Administration Federal Supply Service
5120-00-242-37895120-00-242-3789 INTERCHANGEABLE
Holder,sheet Metal,hole
General Services Administration Federal Supply Service
5120-00-242-37915120-00-242-3791 INTERCHANGEABLE
Holder,sheet Metal,hole
General Services Administration Federal Supply Service
5120-00-293-3382K3382 INTERCHANGEABLE
Holder,sheet Metal,hole
Kaufman Company, Inc. Dba Kaufman Co Inc
5120-00-541-180804-M-1/8 INTERCHANGEABLE
Holder,sheet Metal,hole
Us Air Tool Co., Inc.
5120-00-942-761804-MHD-3/32 INTERCHANGEABLE
Holder,sheet Metal,hole
Us Air Tool Co., Inc.
5120-01-023-6511K-1/8 INTERCHANGEABLE
Holder,sheet Metal,hole
Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc
5120-01-023-651304-M-3/16 INTERCHANGEABLE
Holder,sheet Metal,hole
Us Air Tool Co., Inc.
5120-01-023-6514M3-32 INTERCHANGEABLE
Holder,sheet Metal,hole
Monogram Aerospace Fasteners, Inc Dba Trimas Aerospace Div Monogram Aerospace Fasteners
Cross-Reference Index
Part NumberManufacturer
GGG-H-575 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AT556M Snap-on Incorporated Dba Snap-on Tools Div Snap-on Industrial, Special Products Division (USA)
AT556M PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
GGG-H-575 TY1CL2STESZ1/4 General Services Administration Federal Supply Service (USA)
ATI556M PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
Related Parts
5120-00-197-5344INTERCHANGEABLE
HOLDER,SHEET METAL,EDGE GRIP
5120-00-197-5344
5120-00-222-3336INTERCHANGEABLE
HOLDER,SHEET METAL,HOLE
5120-00-222-3336
5120-00-242-3789INTERCHANGEABLE
HOLDER,SHEET METAL,HOLE
5120-00-242-3789
5120-00-242-3791INTERCHANGEABLE
HOLDER,SHEET METAL,HOLE
5120-00-242-3791
5120-00-293-3382INTERCHANGEABLE
HOLDER,SHEET METAL,HOLE
K3382
5120-00-541-1808INTERCHANGEABLE
HOLDER,SHEET METAL,HOLE
04-M-1/8
5120-00-942-7618INTERCHANGEABLE
HOLDER,SHEET METAL,HOLE
04-MHD-3/32
5120-01-023-6511INTERCHANGEABLE
HOLDER,SHEET METAL,HOLE
K-1/8
5120-01-023-6513INTERCHANGEABLE
HOLDER,SHEET METAL,HOLE
04-M-3/16
5120-01-023-6514INTERCHANGEABLE
HOLDER,SHEET METAL,HOLE
M3-32

Frequently Asked Questions

What is NSN 5120-01-046-2937?

NSN 5120-01-046-2937 is a Holder,sheet Metal,hole, 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 5120-01-046-2937?

NSN 5120-01-046-2937 has 5 cross-referenced part numbers: GGG-H-575 (Federal Specifications Promulgated by General Services Administration Washington DC), AT556M (Snap-on Incorporated Dba Snap-on Tools Div Snap-on Industrial, Special Products Division), AT556M (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), GGG-H-575 TY1CL2STESZ1/4 (General Services Administration Federal Supply Service), ATI556M (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).

What NSN replaces 5120-01-046-2937?

There are 10 known substitutes for 5120-01-046-2937: 5120-00-197-5344, 5120-00-222-3336, 5120-00-242-3789 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AT556M?

Key specifications for AT556M: Nondefinitive Spec/std Data: 1 TYPE AND 2 CLASS AND E STYLE AND 1/4 SIZE; General Characteristics Item Description: PLIER OPERATED; STANDARD; FOR 1/4 IN. DIA HOLE; 0 TO 1/4 IN. GRIP RANGE; COPPER COLOR CODED; 1/4 IN. DRILL IN. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-046-2937 still in active supply?

NSN 5120-01-046-2937 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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