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2817938 — KEY,WOODRUFF

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2817938: KEY,WOODRUFF.

The KEY,WOODRUFF is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN, key_height: 0.4784 INCHES MINIMUM AND 0.4834 INCHES MAXIMUM IN, overall_length: 1.188 INCHES NOMINAL IN, circle_diameter: 1.125 INCHES NOMINAL IN, shoulder_height: 0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-281-7938, 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
2817938
NSN: 5315-00-281-7938
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
key_height0.4784 INCHES MINIMUM AND 0.4834 INCHES MAXIMUM IN
overall_length1.188 INCHES NOMINAL IN
circle_diameter1.125 INCHES NOMINAL IN
shoulder_height0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
style_designatorROUND SHOULDERED ENDS
starting_edge_shapeSTRAIGHT
key_size_designationWOODRUFF 18
NSN5315-00-281-7938
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2817938 · 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
•
SHOULDER HEIGHT: 0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
•
STARTING EDGE SHAPE: STRAIGHT
•
STYLE DESIGNATOR: ROUND SHOULDERED ENDS
•
CIRCLE DIAMETER: 1.125 INCHES NOMINAL IN
•
KEY HEIGHT: 0.4784 INCHES MINIMUM AND 0.4834 INCHES MAXIMUM IN
•
KEY SIZE DESIGNATION: WOODRUFF 18
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SHOULDER HEIGHT0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
STARTING EDGE SHAPESTRAIGHT
STYLE DESIGNATORROUND SHOULDERED ENDS
OVERALL LENGTH1.188 INCHES NOMINAL IN
CIRCLE DIAMETER1.125 INCHES NOMINAL IN
KEY HEIGHT0.4784 INCHES MINIMUM AND 0.4834 INCHES MAXIMUM IN
KEY SIZE DESIGNATIONWOODRUFF 18
MATERIALSTEEL OVERALL
THICKNESS0.250 INCHES MINIMUM AND 0.251 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 2
HP908Reference document
Same NSN cross-reference
Reference document — Secondary reference
62531VReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2817938?
2817938 is a KEY,WOODRUFF.
What parts can replace 2817938?
There are 2 known substitutes for 2817938: HP908, 62531V. Substitute compatibility should be verified for your specific system.
What is the NSN for 2817938?
2817938 is cataloged in the U.S. Government catalog under NSN 5315-00-281-7938. 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.