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HAN 3997PC4 — KEY,WOODRUFF

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

HAN 3997PC4: KEY,WOODRUFF.

The KEY,WOODRUFF is a the manufacturer industrial component. Key specifications include thickness: 0.312 INCHES MINIMUM AND 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM0.313 INCHES MAXIMUM IN, key_height: 0.542 INCHES MINIMUM AND 0.542 INCHES MINIMUM AND 0.547 INCHES MAXIMUM0.547 INCHES MAXIMUM IN, circle_diameter: 1.240 INCHES MINIMUM AND 1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM1.250 INCHES MAXIMUM IN, style_designator: ROUND BOTTOMROUND BOTTOM, starting_edge_shape: STRAIGHTSTRAIGHT, key_size_designation: WOODRUFF DWOODRUFF D. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-343-2607, 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
HAN 3997PC4
NSN: 5315-01-343-2607
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 51802 — HANSOME ENERGY SYSTEMS INC (USA)
SPECIFICATIONS
thickness0.312 INCHES MINIMUM AND 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM0.313 INCHES MAXIMUM IN
key_height0.542 INCHES MINIMUM AND 0.542 INCHES MINIMUM AND 0.547 INCHES MAXIMUM0.547 INCHES MAXIMUM IN
circle_diameter1.240 INCHES MINIMUM AND 1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM1.250 INCHES MAXIMUM IN
style_designatorROUND BOTTOMROUND BOTTOM
starting_edge_shapeSTRAIGHTSTRAIGHT
key_size_designationWOODRUFF DWOODRUFF D
NSN5315-01-343-2607
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: HAN 3997PC4 · 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: STRAIGHTSTRAIGHT
•
STYLE DESIGNATOR: ROUND BOTTOMROUND BOTTOM
•
CIRCLE DIAMETER: 1.240 INCHES MINIMUM AND 1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM1.250 INCHES MAXIMUM IN
•
KEY HEIGHT: 0.542 INCHES MINIMUM AND 0.542 INCHES MINIMUM AND 0.547 INCHES MAXIMUM0.547 INCHES MAXIMUM IN
•
KEY SIZE DESIGNATION: WOODRUFF DWOODRUFF D
•
THICKNESS: 0.312 INCHES MINIMUM AND 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM0.313 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STARTING EDGE SHAPESTRAIGHTSTRAIGHT
STYLE DESIGNATORROUND BOTTOMROUND BOTTOM
CIRCLE DIAMETER1.240 INCHES MINIMUM AND 1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM1.250 INCHES MAXIMUM IN
KEY HEIGHT0.542 INCHES MINIMUM AND 0.542 INCHES MINIMUM AND 0.547 INCHES MAXIMUM0.547 INCHES MAXIMUM IN
KEY SIZE DESIGNATIONWOODRUFF DWOODRUFF D
THICKNESS0.312 INCHES MINIMUM AND 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM0.313 INCHES MAXIMUM 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HAN 3997PC4?
HAN 3997PC4 is a KEY,WOODRUFF.
What is the NSN for HAN 3997PC4?
HAN 3997PC4 is cataloged in the U.S. Government catalog under NSN 5315-01-343-2607. 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.