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A547-661 — KEY,WOODRUFF

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A547-661: KEY,WOODRUFF.

The KEY,WOODRUFF is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, thickness: 0.0898 INCHES NOMINAL IN, key_height: 0.199 INCHES NOMINAL IN, circle_diameter: 0.490 INCHES NOMINAL IN, style_designator: ROUND BOTTOM, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-808-0046, 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
A547-661
NSN: 5315-00-808-0046
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 34228 — L3 TECHNOLOGIES, INC. DIV L3 KEO (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
thickness0.0898 INCHES NOMINAL IN
key_height0.199 INCHES NOMINAL IN
circle_diameter0.490 INCHES NOMINAL IN
style_designatorROUND BOTTOM
surface_treatmentPASSIVATE OVERALL
starting_edge_shapeSTRAIGHT
key_size_designationNONSTANDARD SIZE
NSN5315-00-808-0046
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A547-661 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STARTING EDGE SHAPE: STRAIGHT
•
STYLE DESIGNATOR: ROUND BOTTOM
•
CIRCLE DIAMETER: 0.490 INCHES NOMINAL IN
•
KEY HEIGHT: 0.199 INCHES NOMINAL IN
•
KEY SIZE DESIGNATION: NONSTANDARD SIZE
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 304 OVERALL
•
THICKNESS: 0.0898 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STARTING EDGE SHAPESTRAIGHT
STYLE DESIGNATORROUND BOTTOM
CIRCLE DIAMETER0.490 INCHES NOMINAL IN
KEY HEIGHT0.199 INCHES NOMINAL IN
KEY SIZE DESIGNATIONNONSTANDARD SIZE
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 304 OVERALL
THICKNESS0.0898 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES 2
003102Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
547A003102Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 A547-661?
A547-661 is a KEY,WOODRUFF.
What parts can replace A547-661?
There are 2 known substitutes for A547-661: 003102, 547A003102. Substitute compatibility should be verified for your specific system.
What is the NSN for A547-661?
A547-661 is cataloged in the U.S. Government catalog under NSN 5315-00-808-0046. 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.