PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21481Drill,twist

Time Fastener Co Inc · NSN 5133-01-443-3076 · FSC 5133 · No Item Name Available
Verified by PartsTable
NSN 5133-01-443-3076 — this item is cataloged by the U.S. Government under National Stock Number 5133-01-443-3076. Primary manufacturer part number: 21481.
Features
  • Drill,twist — FSC 5133
  • Material: STEEL OVERALL
  • Cutting Rotation Direction: RIGHT-HAND
  • Nominal Cutting Diameter: 0.2500 INCHES IN
  • 2 verified cross-references
  • Primary manufacturer: Time Fastener Co Inc
Applications
  • Applications requiring Steel Overall construction
General Description

The Drill,twist, cataloged under National Stock Number 5133-01-443-3076, is classified within Federal Supply Class 5133 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Time Fastener Co Inc. Government technical data includes 3 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5133-01-443-3076
Primary Part Number21481
Item NameDrill,twist
FSC / FSG5133 / 51 — No Item Name Available
ManufacturerTime Fastener Co Inc
StatusACTIVE
MaterialSTEEL OVERALL
Cutting Rotation DirectionRIGHT-HAND
Nominal Cutting Diameter0.2500 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4820-00-305-44282148-1 INTERCHANGEABLE
Valve,stop-Check
Tactair Fluid Controls Inc Western Hydraulics Div
5999-00-419-195321-481 INTERCHANGEABLE
Contact,electrical
Eaton Corp Opns & Technical Center
1660-00-520-5598 INTERCHANGEABLE
Cable Assy,housing
6130-01-102-6740 INTERCHANGEABLE
Power Supply
5905-01-178-4025 INTERCHANGEABLE
Resistor,variable,wire Wound,non
5985-01-696-50002148-1 INTERCHANGEABLE
Antenna
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
Cross-Reference Index
Part NumberManufacturer
0661-914-1 Wurth Uk Ltd (GBR)
21481 PRIMARY Time Fastener Co Inc (USA)
Related Parts
4820-00-305-4428INTERCHANGEABLE
VALVE,STOP-CHECK
2148-1
5999-00-419-1953INTERCHANGEABLE
CONTACT,ELECTRICAL
21-481
1660-00-520-5598INTERCHANGEABLE
CABLE ASSY,HOUSING
6130-01-102-6740INTERCHANGEABLE
POWER SUPPLY
5905-01-178-4025INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
5985-01-696-5000INTERCHANGEABLE
ANTENNA
2148-1

Frequently Asked Questions

What is NSN 5133-01-443-3076?

NSN 5133-01-443-3076 is a Drill,twist, manufactured by Time Fastener Co Inc, classified under FSC 5133 (No Item Name Available). Status: active.

What are the part numbers for NSN 5133-01-443-3076?

NSN 5133-01-443-3076 has 2 cross-referenced part numbers: 0661-914-1 (Wurth Uk Ltd), 21481 (Time Fastener Co Inc).

What NSN replaces 5133-01-443-3076?

There are 6 known substitutes for 5133-01-443-3076: 4820-00-305-4428, 5999-00-419-1953, 1660-00-520-5598 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21481?

Key specifications for 21481: Material: STEEL OVERALL; Cutting Rotation Direction: RIGHT-HAND; Nominal Cutting Diameter: 0.2500 INCHES IN. 3 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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