PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BF10 3/4-3/4Coupling,shaft,flexible

Altra Industrial Motion Corp. · NSN 3010-01-174-9555 · FSC 3010 · No Item Name Available
Verified by PartsTable
NSN 3010-01-174-9555 — this item is cataloged by the U.S. Government under National Stock Number 3010-01-174-9555. Primary manufacturer part number: BF10 3/4-3/4.
Features
  • Coupling,shaft,flexible — FSC 3010
  • Keying Facility Spacing in Deg: 360.0 BOTH ENDS
  • Securing Method: THREADED HOLE(S) BOTH ENDS
  • Keyway Width: 0.188 INCHES NOMINAL BOTH ENDS IN
  • Thread Size Designator: 5/16-18 BOTH ENDS
  • Threaded Hole Quantity: 1 BOTH ENDS
  • Keying Facility Type: KEYWAY BOTH ENDS
  • Features Provided: KEYWAY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-174-9555, is classified within Federal Supply Class 3010 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3010-01-174-9555
Primary Part NumberBF10 3/4-3/4
Item NameCoupling,shaft,flexible
FSC / FSG3010 / 30 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusCANCELLED
Keying Facility Spacing in Deg360.0 BOTH ENDS
Securing MethodTHREADED HOLE(S) BOTH ENDS
Keyway Width0.188 INCHES NOMINAL BOTH ENDS IN
Thread Size Designator5/16-18 BOTH ENDS
Threaded Hole Quantity1 BOTH ENDS
Keying Facility TypeKEYWAY BOTH ENDS
Features ProvidedKEYWAY
Furnished Items and QuantitySETSCREW 2
Design TypeINSERT
Outside Diameter1.5937 INCHES NOMINAL IN
Bore Length1.1875 INCHES NOMINAL BOTH ENDS IN
Bore ShapeSTRAIGHT BOTH ENDS
Bore Diameter0.7500 INCHES NOMINAL BOTH ENDS IN
Insert MaterialPLASTIC
Keyway Depth0.0937 INCHES NOMINAL BOTH ENDS IN
Threaded Hole LocationBOTH ENDS: HUB FACE OPPOSITE KEYWAY
Keying Facility Quantity1 BOTH ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-142-4034 INTERCHANGEABLE
Tool,cam Setting
5945-00-189-455111740 INTERCHANGEABLE
Relay,electromagnetic
Thales Usa, Inc. Div Air Mobility Solutions ("ams")
3455-00-243-217416291 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
5999-00-283-399816T1879 INTERCHANGEABLE
Cap,electrical
Chief of Engineers Dept of Army
5950-00-646-5522 INTERCHANGEABLE
Transformer,power
5930-00-777-603610272-1 INTERCHANGEABLE
Guard,switch
Grimes Aerospace Company
6125-00-869-433610272-1 INTERCHANGEABLE
Circuit Board,stati
Kurz & Root Generator Company, Llc
5815-00-975-9698 INTERCHANGEABLE
Shaft
6680-01-021-219411740 INTERCHANGEABLE
Meter,flow Rate Indicating
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
5305-01-035-6705102721 INTERCHANGEABLE
Screw,cap,socket Head
Triumph Engine Control Systems Llc
Cross-Reference Index
Part NumberManufacturer
BF10 3/4-3/4 PRIMARY Altra Industrial Motion Corp. (USA)
102721 Cal-West-Fab Inc (USA)
BF10-3/4 Altra Industrial Motion Corp. (USA)
BFL0-L-1 Altra Industrial Motion Corp. (USA)
02721 Altra Industrial Motion Corp. (USA)
11740 Altra Industrial Motion Corp. (USA)
Related Parts
5120-00-142-4034INTERCHANGEABLE
TOOL,CAM SETTING
5945-00-189-4551INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
11740
3455-00-243-2174INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
16291
5999-00-283-3998INTERCHANGEABLE
CAP,ELECTRICAL
16T1879
5950-00-646-5522INTERCHANGEABLE
TRANSFORMER,POWER
5930-00-777-6036INTERCHANGEABLE
GUARD,SWITCH
10272-1
6125-00-869-4336INTERCHANGEABLE
CIRCUIT BOARD,STATI
10272-1
5815-00-975-9698INTERCHANGEABLE
SHAFT
6680-01-021-2194INTERCHANGEABLE
METER,FLOW RATE INDICATING
11740
5305-01-035-6705INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
102721
5310-01-119-3266INTERCHANGEABLE
WASHER,RECESSED
5130-01-130-7197INTERCHANGEABLE
DIE,CRIMPING TOOL
11740

Frequently Asked Questions

What is NSN 3010-01-174-9555?

NSN 3010-01-174-9555 is a Coupling,shaft,flexible, manufactured by Altra Industrial Motion Corp., classified under FSC 3010 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3010-01-174-9555?

NSN 3010-01-174-9555 has 6 cross-referenced part numbers: BF10 3/4-3/4 (Altra Industrial Motion Corp.), 102721 (Cal-West-Fab Inc), BF10-3/4 (Altra Industrial Motion Corp.), BFL0-L-1 (Altra Industrial Motion Corp.), 02721 (Altra Industrial Motion Corp.) and 1 more.

What NSN replaces 3010-01-174-9555?

There are 12 known substitutes for 3010-01-174-9555: 5120-00-142-4034, 5945-00-189-4551, 3455-00-243-2174 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BF10 3/4-3/4?

Key specifications for BF10 3/4-3/4: Keying Facility Spacing in Deg: 360.0 BOTH ENDS; Securing Method: THREADED HOLE(S) BOTH ENDS; Keyway Width: 0.188 INCHES NOMINAL BOTH ENDS IN; Thread Size Designator: 5/16-18 BOTH ENDS. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3010-01-174-9555 still in active supply?

NSN 3010-01-174-9555 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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