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909D158PC6 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

909D158PC6: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.656 INCHES NOMINAL IN, outside_diameter: 1.250 INCHES NOMINAL IN, special_features: 0.125 IN. WIDE SLOT 0.875 IN.

LENGTH ON CENTERLINE OF WEDGE KEY IN, style_designator: KEY, material_thickness: 0.062 INCHES NOMINAL IN. This part is cataloged in the U.S. Government catalog under NSN 5310-00-558-7542, 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
909D158PC6
NSN: 5310-00-558-7542
FSC: 5310 — Nuts and Washers
CAGE: 79500 — WESTINGHOUSE ELECTRIC CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.656 INCHES NOMINAL IN
outside_diameter1.250 INCHES NOMINAL IN
special_features0.125 IN. WIDE SLOT 0.875 IN. LENGTH ON CENTERLINE OF WEDGE KEY IN
style_designatorKEY
material_thickness0.062 INCHES NOMINAL IN
third_hole_diameter0.875 INCHES NOMINAL IN
tapered_key_major_width1.125 INCHES NOMINAL IN
tapered_key_minor_width0.875 INCHES NOMINAL IN
overall_distance_including_keys2.000 INCHES NOMINAL IN
NSN5310-00-558-7542
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 909D158PC6 · 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
•
OVERALL DISTANCE INCLUDING KEYS: 2.000 INCHES NOMINAL IN
•
THIRD HOLE DIAMETER: 0.875 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
OUTSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
•
TAPERED KEY MINOR WIDTH: 0.875 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
OVERALL DISTANCE INCLUDING KEYS2.000 INCHES NOMINAL IN
THIRD HOLE DIAMETER0.875 INCHES NOMINAL IN
STYLE DESIGNATORKEY
OUTSIDE DIAMETER1.250 INCHES NOMINAL IN
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
TAPERED KEY MINOR WIDTH0.875 INCHES NOMINAL IN
SPECIAL FEATURES0.125 IN. WIDE SLOT 0.875 IN. LENGTH ON CENTERLINE OF WEDGE KEY IN
MATERIALSTEEL OVERALL
TAPERED KEY MAJOR WIDTH1.125 INCHES NOMINAL IN
HOLE DIAMETER0.656 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
317088-BReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 909D158PC6?
909D158PC6 is a WASHER,KEY.
What parts can replace 909D158PC6?
There is 1 known substitute for 909D158PC6: 317088-B. Substitute compatibility should be verified for your specific system.
What is the NSN for 909D158PC6?
909D158PC6 is cataloged in the U.S. Government catalog under NSN 5310-00-558-7542. 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.