PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25621Drill,twist

Time Fastener Co Inc · NSN 5133-01-443-3077 · FSC 5133 · No Item Name Available
Verified by PartsTable
NSN 5133-01-443-3077 — this item is cataloged by the U.S. Government under National Stock Number 5133-01-443-3077. Primary manufacturer part number: 25621.
Features
  • Drill,twist — FSC 5133
  • Material: STEEL OVERALL
  • Cutting Rotation Direction: RIGHT-HAND
  • Nominal Cutting Diameter: 0.3125 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 5133-01-443-3077, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5133-01-443-3077
Primary Part Number25621
Item NameDrill,twist
FSC / FSG5133 / 51 — No Item Name Available
ManufacturerTime Fastener Co Inc
StatusACTIVE
MaterialSTEEL OVERALL
Cutting Rotation DirectionRIGHT-HAND
Nominal Cutting Diameter0.3125 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2920-00-229-55469-29210 INTERCHANGEABLE
Rotor,ignition Distributor
Thermo Power Corp Engine Div
5999-00-238-1213A23-1131 INTERCHANGEABLE
Contact,electrical
Eaton Corp Opns & Technical Center
5133-00-266-946811/16 2510/950 INTERCHANGEABLE
Drill,twist
Greenfield Industries Inc
3110-01-012-747125621 INTERCHANGEABLE
Plate,retaining,bearing
Williams International Co., L.l.c.
5310-01-032-352425621 INTERCHANGEABLE
Washer,flat
Triumph Engine Control Systems Llc
5325-01-257-672025621 INTERCHANGEABLE
Ring,retaining
Bowmar Llc Dba Bowmar Instrument Corp
6635-01-585-47212562-1 INTERCHANGEABLE
Reference Standard,physical Prop
Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division
Cross-Reference Index
Part NumberManufacturer
0661-951-61 Wurth Uk Ltd (GBR)
25621 PRIMARY Time Fastener Co Inc (USA)
Related Parts
2920-00-229-5546INTERCHANGEABLE
ROTOR,IGNITION DISTRIBUTOR
9-29210
5999-00-238-1213INTERCHANGEABLE
CONTACT,ELECTRICAL
A23-1131
5133-00-266-9468INTERCHANGEABLE
DRILL,TWIST
11/16 2510/950
3110-01-012-7471INTERCHANGEABLE
PLATE,RETAINING,BEARING
25621
5310-01-032-3524INTERCHANGEABLE
WASHER,FLAT
25621
5325-01-257-6720INTERCHANGEABLE
RING,RETAINING
25621
6635-01-585-4721INTERCHANGEABLE
REFERENCE STANDARD,PHYSICAL PROP
2562-1

Frequently Asked Questions

What is NSN 5133-01-443-3077?

NSN 5133-01-443-3077 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 5133-01-443-3077?

NSN 5133-01-443-3077 has 2 cross-referenced part numbers: 0661-951-61 (Wurth Uk Ltd), 25621 (Time Fastener Co Inc).

What NSN replaces 5133-01-443-3077?

There are 7 known substitutes for 5133-01-443-3077: 2920-00-229-5546, 5999-00-238-1213, 5133-00-266-9468 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25621?

Key specifications for 25621: Material: STEEL OVERALL; Cutting Rotation Direction: RIGHT-HAND; Nominal Cutting Diameter: 0.3125 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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