PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

550 28Drill,twist

Greenfield Industries Inc · NSN 5133-01-045-4943 · FSC 5133 · No Item Name Available
Verified by PartsTable
NSN 5133-01-045-4943 — this item is cataloged by the U.S. Government under National Stock Number 5133-01-045-4943. Primary manufacturer part number: 550 28.
Features
  • Drill,twist — FSC 5133
  • Shank Style: STRAIGHT ROUND
  • Flute Quantity: 2
  • Specification/standard Data: 80205-NAS907 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Point Angle: 135.0 DEGREES NOMINAL
  • Material: STEEL ALLOY OVERALL
  • Cutting Rotation Direction: RIGHT-HAND
  • Nominal Cutting Diameter: 0.1405 INCHES IN
Applications
  • Applications requiring Steel Alloy Overall construction
General Description

The Drill,twist, cataloged under National Stock Number 5133-01-045-4943, is classified within Federal Supply Class 5133 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Greenfield Industries Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 22 commercial cross-references from 9 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
NSN5133-01-045-4943
Primary Part Number550 28
Item NameDrill,twist
FSC / FSG5133 / 51 — No Item Name Available
ManufacturerGreenfield Industries Inc
StatusCANCELLED
Shank StyleSTRAIGHT ROUND
Flute Quantity2
Specification/standard Data80205-NAS907 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Point Angle135.0 DEGREES NOMINAL
MaterialSTEEL ALLOY OVERALL
Cutting Rotation DirectionRIGHT-HAND
Nominal Cutting Diameter0.1405 INCHES IN
Nondefinitive Spec/std DataJ TYPE
Cutting End StyleGENERAL PURPOSE
Flute Length1.750 INCHES NOMINAL IN
Shank Diameter0.140 INCHES NOMINAL IN
Point TypeSPLIT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5365-00-003-9656301228 INTERCHANGEABLE
Ring,externally Threaded
Northrop Grumman Corp Electronic Systems Defensive System Div
5330-00-178-46270S507 INTERCHANGEABLE
Seal,plain Encased
Hoist Liftruck Mfg Inc
4730-00-289-2357SAE J514-3 8-8 140239C INTERCHANGEABLE
Elbow,pipe
Sae International Dba Sae International
6210-00-299-3941209-0206-0137-201 INTERCHANGEABLE
Light,indicator
Dialight Corporation
4510-00-451-2791SC3 INTERCHANGEABLE
Seat Unit,mixing Valve
Symmons Industries Inc
3455-00-455-544681828 INTERCHANGEABLE
Cutter Bit,tool Holder
Kennametal Inc.
5950-00-465-317617-139 INTERCHANGEABLE
Reactor
L3harris Maritime Power & Energy Solutions, Inc
6625-00-553-0846 INTERCHANGEABLE
Voltmeter
5950-00-583-4835 INTERCHANGEABLE
Reactor
5305-00-655-9584 INTERCHANGEABLE
Screw,cap,socket Head
Cross-Reference Index
Part NumberManufacturer
550 28 Greenfield Industries Inc (USA)
46698 Greenfield Industries Inc (USA)
2330 Morse Cutting Tools Div of Morse Cutting Tool Corp (USA)
3012 28 New York Twist Drill Inc (USA)
04185 Cleveland Twist Drill Co Div of Greenfield Industries Inc (USA)
46698 Kennametal Inc. Div Kennametal Industrial Products Group (USA)
NAS907 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
2013 28 Cleveland Twist Drill Co Div of Greenfield Industries Inc (USA)
2013 28 Kennametal Inc. Div Kennametal Industrial Products Group (USA)
17139 Morse Cutting Tools Div of Morse Cutting Tool Corp (USA)
46698 Greenfield Industries Inc (USA)
NAS907 TYJSZ28 General Services Administration Federal Supply Service (USA)
818 28 Cleveland Twist Drill Co Div of Greenfield Industries Inc (USA)
18328 Precision Twist Drill Co (USA)
550 28 Greenfield Industries Inc (USA)
550 28 Kennametal Inc. Div Kennametal Industrial Products Group (USA)
17139 Morse Cutting Tools (USA)
04185 Kennametal Inc. Div Kennametal Industrial Products Group (USA)
R18CO 28 Precision Twist Drill Co (USA)
3701-0140 Cleveland Twist Drill Co Div of Greenfield Industries Inc (USA)
Related Parts
5365-00-003-9656INTERCHANGEABLE
RING,EXTERNALLY THREADED
301228
5330-00-178-4627INTERCHANGEABLE
SEAL,PLAIN ENCASED
0S507
4730-00-289-2357INTERCHANGEABLE
ELBOW,PIPE
SAE J514-3 8-8 140239C
6210-00-299-3941INTERCHANGEABLE
LIGHT,INDICATOR
209-0206-0137-201
4510-00-451-2791INTERCHANGEABLE
SEAT UNIT,MIXING VALVE
SC3
3455-00-455-5446INTERCHANGEABLE
CUTTER BIT,TOOL HOLDER
81828
5950-00-465-3176INTERCHANGEABLE
REACTOR
17-139
6625-00-553-0846INTERCHANGEABLE
VOLTMETER
5950-00-583-4835INTERCHANGEABLE
REACTOR
5305-00-655-9584INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
6615-00-983-1031INTERCHANGEABLE
FITTING ASSEMBLY
55028
6685-00-983-2781INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
58FMS

Frequently Asked Questions

What is NSN 5133-01-045-4943?

NSN 5133-01-045-4943 is a Drill,twist, manufactured by Greenfield Industries Inc, classified under FSC 5133 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5133-01-045-4943?

NSN 5133-01-045-4943 has 22 cross-referenced part numbers: 550 28 (Greenfield Industries Inc), 46698 (Greenfield Industries Inc), 2330 (Morse Cutting Tools Div of Morse Cutting Tool Corp), 3012 28 (New York Twist Drill Inc), 04185 (Cleveland Twist Drill Co Div of Greenfield Industries Inc) and 17 more.

What NSN replaces 5133-01-045-4943?

There are 12 known substitutes for 5133-01-045-4943: 5365-00-003-9656, 5330-00-178-4627, 4730-00-289-2357 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 550 28?

Key specifications for 550 28: Shank Style: STRAIGHT ROUND; Flute Quantity: 2; Specification/standard Data: 80205-NAS907 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Special Features: JOBBERS LG; WIRE SIZE 28. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5133-01-045-4943 still in active supply?

NSN 5133-01-045-4943 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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