PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BM20-3Screw,machine

Eastman Machine Company Dba Eastman Machine Co Div Eastman · NSN 5305-00-206-0540 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-206-0540 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-206-0540. Primary manufacturer part number: BM20-3.
Features
  • Screw,machine — FSC 5305
  • Internal Drive Style: SLOT
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Screw Surface Treatment: CADMIUM
  • Screw Material: STEEL
  • Screw Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
  • Head Style: ROUND
  • Nondefinitive Spec/std Data: 3 TYPE AND 1S STYLE
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-206-0540, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eastman Machine Company Dba Eastman Machine Co Div Eastman. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 19 commercial cross-references from 15 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-206-0540
Primary Part NumberBM20-3
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerEastman Machine Company Dba Eastman Machine Co Div Eastman
StatusACTIVE
Internal Drive StyleSLOT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Screw Surface TreatmentCADMIUM
Screw MaterialSTEEL
Screw Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
Head StyleROUND
Nondefinitive Spec/std Data3 TYPE AND 1S STYLE
Fastener Length0.375 INCHES NOMINAL IN
Head Height0.107 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
Thread Quantity Per Inch32
Screw Material Document and ClassificationQQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE
Nominal Thread Diameter0.164 INCHES IN
Head Diameter0.287 INCHES MINIMUM AND 0.309 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Thread Class2A A
Thread Length0.375 INCHES MINIMUM IN
Minimum Tensile Strength60000 POUNDS PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5307-00-017-6398S9-2 INTERCHANGEABLE
Stud,continuous Thread
Norwalk Compreseer Company Inc Dba Norwalk Compressor Company
3110-00-100-0208344 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
4310-00-167-9748 INTERCHANGEABLE
Crankshaft
9540-00-222-0467 INTERCHANGEABLE
Angle,structural
6640-00-228-0423 INTERCHANGEABLE
Film,pressure Sensitive
2530-00-391-4345FD3406 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
2910-00-477-817533044 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
9540-00-555-1081 INTERCHANGEABLE
Angle,structural
6920-00-674-1756 INTERCHANGEABLE
Blade Assembly,turb
5340-00-989-1771MS21333-123 INTERCHANGEABLE
Clamp,loop
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
BM20-3 Eastman Machine Co (USA)
3300684A0300P042 General Electric Company (USA)
BS214E02 Interlake Inc (USA)
BM20-3 PRIMARY Eastman Machine Company Dba Eastman Machine Co Div Eastman (USA)
3300C84A0300P042 General Electric Company (USA)
3300C84A0300P042 PRIMARY General Electric Co Motor Business Group (USA)
11D16 PRIMARY Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
525896 Raytheon Technical Services Company (USA)
3044 Prestolite Electric Inc (USA)
3044 Prestolite Electric Inc (USA)
X12 Worthington Compressors Inc Air Power and Construction Equip Div (USA)
6026-8362-5 Raytheon Technical Services Company (USA)
83-3063 Northern Telecom Inc Telecom Distribution Div (USA)
FFS92 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
525896 Cae Usa Inc. (USA)
S92 Utah-American Corp (USA)
3300684A0300P042 PRIMARY General Electric Co Motor Business Group (USA)
285-16A PRIMARY Hamilton Sundstrand Corporation (USA)
0884 Power Industries Inc (USA)
Related Parts
5307-00-017-6398INTERCHANGEABLE
STUD,CONTINUOUS THREAD
S9-2
3110-00-100-0208INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
344
4310-00-167-9748INTERCHANGEABLE
CRANKSHAFT
9540-00-222-0467INTERCHANGEABLE
ANGLE,STRUCTURAL
6640-00-228-0423INTERCHANGEABLE
FILM,PRESSURE SENSITIVE
2530-00-391-4345INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
FD3406
2910-00-477-8175INTERCHANGEABLE
FILTER ELEMENT,FLUID
33044
9540-00-555-1081INTERCHANGEABLE
ANGLE,STRUCTURAL
6920-00-674-1756INTERCHANGEABLE
BLADE ASSEMBLY,TURB
5340-00-989-1771INTERCHANGEABLE
CLAMP,LOOP
MS21333-123
5895-01-082-3638INTERCHANGEABLE
MONITOR,RADIO FREQUENCY
SM-A-794126
5340-01-094-8282INTERCHANGEABLE
DISK,SOLID,PLAIN
3044

Frequently Asked Questions

What is NSN 5305-00-206-0540?

NSN 5305-00-206-0540 is a Screw,machine, manufactured by Eastman Machine Company Dba Eastman Machine Co Div Eastman, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-206-0540?

NSN 5305-00-206-0540 has 19 cross-referenced part numbers: BM20-3 (Eastman Machine Co), 3300684A0300P042 (General Electric Company), BS214E02 (Interlake Inc), BM20-3 (Eastman Machine Company Dba Eastman Machine Co Div Eastman), 3300C84A0300P042 (General Electric Company) and 14 more.

What NSN replaces 5305-00-206-0540?

There are 12 known substitutes for 5305-00-206-0540: 5307-00-017-6398, 3110-00-100-0208, 4310-00-167-9748 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BM20-3?

Key specifications for BM20-3: Internal Drive Style: SLOT; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Screw Surface Treatment: CADMIUM; Screw Material: STEEL. 17 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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