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BL-646 171 PITCHES — CHAIN,LEAF

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

BL-646 171 PITCHES: CHAIN,LEAF.

The CHAIN,LEAF is a the manufacturer industrial component. Key specifications include material: STEEL, link_style: 4 X 6, effective_length: 10.6875 FEET NOMINAL FT, link_plate_width: 0.700 INCHES NOMINAL IN, link_nominal_width: 1.2500 INCHES IN, pin_overall_length: 1.4410 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-293-4427, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
BL-646 171 PITCHES
NSN: 3020-01-293-4427
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 76474 — EMERSON POWER TRANSMISSION CORPORATION DIV EPT (USA)
SPECIFICATIONS
materialSTEEL
link_style4 X 6
effective_length10.6875 FEET NOMINAL FT
link_plate_width0.700 INCHES NOMINAL IN
link_row_quantity1
link_nominal_width1.2500 INCHES IN
pin_overall_length1.4410 INCHES NOMINAL IN
pin_fastening_methodRIVETED
minimum_tensile_strength22000 POUNDS PER SQUARE INCH LBS
link_pin_nominal_diameter0.3120 INCHES IN
link_plate_nominal_thickness0.1250 INCHES IN
NSN3020-01-293-4427
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CHAIN,LEAF TITLE COMPONENT PN BL-646 171 PITCHES MFR CHAIN,LEAF
KEY FEATURES
•
LINK PLATE NOMINAL THICKNESS: 0.1250 INCHES IN
•
LINK STYLE: 4 X 6
•
LINK NOMINAL WIDTH: 1.2500 INCHES IN
•
LINK PIN NOMINAL DIAMETER: 0.3120 INCHES IN
•
PIN OVERALL LENGTH: 1.4410 INCHES NOMINAL IN
•
EFFECTIVE LENGTH: 10.6875 FEET NOMINAL FT
•
PIN FASTENING METHOD: RIVETED
•
MINIMUM TENSILE STRENGTH: 22000 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS
LINK PLATE NOMINAL THICKNESS0.1250 INCHES IN
LINK STYLE4 X 6
LINK NOMINAL WIDTH1.2500 INCHES IN
LINK PIN NOMINAL DIAMETER0.3120 INCHES IN
PIN OVERALL LENGTH1.4410 INCHES NOMINAL IN
EFFECTIVE LENGTH10.6875 FEET NOMINAL FT
PIN FASTENING METHODRIVETED
MINIMUM TENSILE STRENGTH22000 POUNDS PER SQUARE INCH LBS
LINK ROW QUANTITY1
MATERIALSTEEL
OTHER ITEMS IN FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3020-00-000-0091 3020-00-001-0027 3020-00-001-0028 3020-00-001-0063 3020-00-001-0064 3020-00-001-0066 3020-00-001-0071 3020-00-001-0072
SUBSTITUTES & CROSS-REFERENCES 1
333125Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BL-646 171 PITCHES?
BL-646 171 PITCHES is a CHAIN,LEAF.
What parts can replace BL-646 171 PITCHES?
There is 1 known substitute for BL-646 171 PITCHES: 333125. Substitute compatibility should be verified for your specific system.
What is the NSN for BL-646 171 PITCHES?
BL-646 171 PITCHES is cataloged in the U.S. Government catalog under NSN 3020-01-293-4427. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.