PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3780 5/16Drill,twist

Greenfield Industries Inc · NSN 5133-01-399-1226 · FSC 5133 · No Item Name Available
Verified by PartsTable
NSN 5133-01-399-1226 — this item is cataloged by the U.S. Government under National Stock Number 5133-01-399-1226. Primary manufacturer part number: 3780 5/16.
Features
  • Drill,twist — FSC 5133
  • Cutting Rotation Direction: RIGHT-HAND
  • Flute Quantity: 2
  • Point Angle: 135.0 DEGREES NOMINAL
  • Nondefinitive Spec/std Data: D TYPE AND 5/16 SIZE
  • Material: STEEL ALLOY OVERALL
  • Specification/standard Data: 80205-NAS907 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Shank Diameter: 0.312 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Alloy Overall construction
General Description

The Drill,twist, cataloged under National Stock Number 5133-01-399-1226, 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 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5133-01-399-1226
Primary Part Number3780 5/16
Item NameDrill,twist
FSC / FSG5133 / 51 — No Item Name Available
ManufacturerGreenfield Industries Inc
StatusACTIVE
Cutting Rotation DirectionRIGHT-HAND
Flute Quantity2
Point Angle135.0 DEGREES NOMINAL
Nondefinitive Spec/std DataD TYPE AND 5/16 SIZE
MaterialSTEEL ALLOY OVERALL
Specification/standard Data80205-NAS907 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Shank Diameter0.312 INCHES NOMINAL IN
Point TypeSPLIT
Cutting End StyleGENERAL PURPOSE
Flute Length1.625 INCHES NOMINAL IN
Shank StyleSTRAIGHT ROUND
Nominal Cutting Diameter0.3125 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4810-00-440-786315970 INTERCHANGEABLE
Valve,linear,directional Control
Moog Inc
5950-00-497-5800712073-10 INTERCHANGEABLE
Transformer,radio Frequency
Raytheon Company Div Rmd Strategic
5950-00-539-789215970 INTERCHANGEABLE
Transformer,power
Freed Transformer Co
5331-00-618-2516 INTERCHANGEABLE
O-Ring
3110-01-063-513815970 INTERCHANGEABLE
Bearing,ball,annular
Tld Wollard Llc
5325-01-123-6224476252 INTERCHANGEABLE
Ring,retaining
Rotron Incorporated
5950-01-159-554015970 INTERCHANGEABLE
Transformer,radio
Raytheon Company Div Rmd Strategic
4810-01-192-09671311-516 INTERCHANGEABLE
Valve,solenoid
Woodward, Inc. Div Fuel Systems and Controls
8145-01-615-902819294-0100 INTERCHANGEABLE
Nrp,shipping and St
Hardigg Industries, Llc Div Hardigg Cases
1560-01-674-146315970 INTERCHANGEABLE
Bracket,structural Component,air
Northrop Grumman Systems Corporation
Cross-Reference Index
Part NumberManufacturer
3780 5/16 Greenfield Industries Inc (USA)
C15970 Greenfield Industries Inc (USA)
NAS907 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
3780 5/16 Kennametal Inc. Div Kennametal Industrial Products Group (USA)
NAS907 TYDSZ5/16 General Services Administration Federal Supply Service (USA)
15970 Cleveland Twist Drill Co Div of Greenfield Industries Inc (USA)
15970 Kennametal Inc. Div Kennametal Industrial Products Group (USA)
3780 5/16 Cleveland Twist Drill Co Div of Greenfield Industries Inc (USA)
Related Parts
4810-00-440-7863INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
15970
5950-00-497-5800INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
712073-10
5950-00-539-7892INTERCHANGEABLE
TRANSFORMER,POWER
15970
5331-00-618-2516INTERCHANGEABLE
O-RING
3110-01-063-5138INTERCHANGEABLE
BEARING,BALL,ANNULAR
15970
5325-01-123-6224INTERCHANGEABLE
RING,RETAINING
476252
5950-01-159-5540INTERCHANGEABLE
TRANSFORMER,RADIO
15970
4810-01-192-0967INTERCHANGEABLE
VALVE,SOLENOID
1311-516
8145-01-615-9028INTERCHANGEABLE
NRP,SHIPPING AND ST
19294-0100
1560-01-674-1463INTERCHANGEABLE
BRACKET,STRUCTURAL COMPONENT,AIR
15970

Frequently Asked Questions

What is NSN 5133-01-399-1226?

NSN 5133-01-399-1226 is a Drill,twist, manufactured by Greenfield Industries Inc, classified under FSC 5133 (No Item Name Available). Status: active.

What are the part numbers for NSN 5133-01-399-1226?

NSN 5133-01-399-1226 has 8 cross-referenced part numbers: 3780 5/16 (Greenfield Industries Inc), C15970 (Greenfield Industries Inc), NAS907 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 3780 5/16 (Kennametal Inc. Div Kennametal Industrial Products Group), NAS907 TYDSZ5/16 (General Services Administration Federal Supply Service) and 3 more.

What NSN replaces 5133-01-399-1226?

There are 10 known substitutes for 5133-01-399-1226: 4810-00-440-7863, 5950-00-497-5800, 5950-00-539-7892 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3780 5/16?

Key specifications for 3780 5/16: Cutting Rotation Direction: RIGHT-HAND; Flute Quantity: 2; Special Features: JOBBERS LG; SCREW MACHINE FLUTE LG; FRACTIONAL SIZE 5/16; Point Angle: 135.0 DEGREES NOMINAL. 14 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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