PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

58121Drill,twist

Precision Twist Drill Co · NSN 5133-01-443-6304 · FSC 5133 · No Item Name Available
Verified by PartsTable
NSN 5133-01-443-6304 — this item is cataloged by the U.S. Government under National Stock Number 5133-01-443-6304. Primary manufacturer part number: 58121.
Features
  • Drill,twist — FSC 5133
  • Cutting Rotation Direction: RIGHT-HAND
  • Point Angle: 135.0 DEGREES NOMINAL
  • Material: STEEL OVERALL
  • Flute Quantity: 2
  • Shank Style: STRAIGHT ROUND
  • Point Type: SPLIT
  • Flute Length: 2.125 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Drill,twist, cataloged under National Stock Number 5133-01-443-6304, is classified within Federal Supply Class 5133 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Precision Twist Drill Co. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5133-01-443-6304
Primary Part Number58121
Item NameDrill,twist
FSC / FSG5133 / 51 — No Item Name Available
ManufacturerPrecision Twist Drill Co
StatusACTIVE
Cutting Rotation DirectionRIGHT-HAND
Point Angle135.0 DEGREES NOMINAL
MaterialSTEEL OVERALL
Flute Quantity2
Shank StyleSTRAIGHT ROUND
Point TypeSPLIT
Flute Length2.125 INCHES NOMINAL IN
Nominal Cutting Diameter0.1590 INCHES IN
Shank Diameter0.1590 INCHES NOMINAL IN
Cutting End StyleGENERAL PURPOSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-00-550-3715MS35333-70 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5935-00-811-71125812-1 INTERCHANGEABLE
Connector,plug,electrical
Microwave Devices Inc
4730-01-060-9647500621 INTERCHANGEABLE
Reducer,tube
Mirion Technologies (canberra), Inc.
5935-01-148-0989153704-09 INTERCHANGEABLE
Connector Body,plug,electrical
Ge Aviation Systems Llc
2940-01-414-769246263 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
5315-01-522-3102500621 INTERCHANGEABLE
Pin,spring
Huck International, Inc. Div Kingston Operations
Cross-Reference Index
Part NumberManufacturer
3947-6 21 Cleveland Twist Drill Co Div of Greenfield Industries Inc (USA)
C05855 Kennametal Inc. Div Kennametal Industrial Products Group (USA)
05855 Cleveland Twist Drill Co Div of Greenfield Industries Inc (USA)
500-6 21 Precision Twist Drill Co (USA)
3947-6 21 Kennametal Inc. Div Kennametal Industrial Products Group (USA)
58121 PRIMARY Precision Twist Drill Co (USA)
05855 Kennametal Inc. Div Kennametal Industrial Products Group (USA)
Related Parts
5310-00-550-3715INTERCHANGEABLE
WASHER,LOCK
MS35333-70
5935-00-811-7112INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5812-1
4730-01-060-9647INTERCHANGEABLE
REDUCER,TUBE
500621
5935-01-148-0989INTERCHANGEABLE
CONNECTOR BODY,PLUG,ELECTRICAL
153704-09
2940-01-414-7692INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
46263
5315-01-522-3102INTERCHANGEABLE
PIN,SPRING
500621

Frequently Asked Questions

What is NSN 5133-01-443-6304?

NSN 5133-01-443-6304 is a Drill,twist, manufactured by Precision Twist Drill Co, classified under FSC 5133 (No Item Name Available). Status: active.

What are the part numbers for NSN 5133-01-443-6304?

NSN 5133-01-443-6304 has 7 cross-referenced part numbers: 3947-6 21 (Cleveland Twist Drill Co Div of Greenfield Industries Inc), C05855 (Kennametal Inc. Div Kennametal Industrial Products Group), 05855 (Cleveland Twist Drill Co Div of Greenfield Industries Inc), 500-6 21 (Precision Twist Drill Co), 3947-6 21 (Kennametal Inc. Div Kennametal Industrial Products Group) and 2 more.

What NSN replaces 5133-01-443-6304?

There are 6 known substitutes for 5133-01-443-6304: 5310-00-550-3715, 5935-00-811-7112, 4730-01-060-9647 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 58121?

Key specifications for 58121: Special Features: AIRCRAFT EXTENSION TYPE; WIRE SIZE 21; Cutting Rotation Direction: RIGHT-HAND; Point Angle: 135.0 DEGREES NOMINAL; Material: STEEL OVERALL. 12 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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