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999C0529 PIECE 18 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

999C0529 PIECE 18: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY R-405 AND NICKEL ALLOY 400 OVERALL, overall_width: 0.188 INCHES NOMINAL IN, overall_height: 0.188 INCHES NOMINAL IN, overall_length: 1.812 INCHES NOMINAL IN, style_designator: PLAIN, starting_edge_shape: STRAIGHT. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-124-1333, 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
999C0529 PIECE 18
NSN: 5315-01-124-1333
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialNICKEL ALLOY R-405 AND NICKEL ALLOY 400 OVERALL
overall_width0.188 INCHES NOMINAL IN
overall_height0.188 INCHES NOMINAL IN
overall_length1.812 INCHES NOMINAL IN
style_designatorPLAIN
starting_edge_shapeSTRAIGHT
material_document_and_classificationASTM-B164 CL A COLD DRAWN ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN5315-01-124-1333
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 999C0529 PIECE 18 · 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: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-B164 CL A COLD DRAWN ASSN STD ALL MATERIAL RESPONSES OVERALL
•
MATERIAL: NICKEL ALLOY R-405 AND NICKEL ALLOY 400 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.188 INCHES NOMINAL IN
STARTING EDGE SHAPESTRAIGHT
STYLE DESIGNATORPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-B164 CL A COLD DRAWN ASSN STD ALL MATERIAL RESPONSES OVERALL
OVERALL LENGTH1.812 INCHES NOMINAL IN
OVERALL WIDTH0.188 INCHES NOMINAL IN
MATERIALNICKEL ALLOY R-405 AND NICKEL ALLOY 400 OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
N142Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 999C0529 PIECE 18?
999C0529 PIECE 18 is a KEY,MACHINE.
What parts can replace 999C0529 PIECE 18?
There is 1 known substitute for 999C0529 PIECE 18: N142. Substitute compatibility should be verified for your specific system.
What is the NSN for 999C0529 PIECE 18?
999C0529 PIECE 18 is cataloged in the U.S. Government catalog under NSN 5315-01-124-1333. 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.