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10291909 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10291909: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_width: 0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN, overall_height: 0.126 INCHES NOMINAL IN, overall_length: 0.250 INCHES NOMINAL IN, style_designator: PLAIN, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-021-2384, 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
10291909
NSN: 5315-01-021-2384
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN
overall_height0.126 INCHES NOMINAL IN
overall_length0.250 INCHES NOMINAL IN
style_designatorPLAIN
surface_treatmentCADMIUM OVERALL
starting_edge_shapeROUND
starting_edge_radius0.062 INCHES NOMINAL IN
mounting_hole_thread_class2B
mounting_hole_type_and_quantity1 THREADED
mounting_hole_nominal_thread_size0.086 INCHES IN
material_document_and_classificationAISI 1018 THRU 1035 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-01-021-2384
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10291909 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MOUNTING HOLE TYPE AND QUANTITY: 1 THREADED
•
STARTING EDGE SHAPE: ROUND
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI 1018 THRU 1035 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.126 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MOUNTING HOLE TYPE AND QUANTITY1 THREADED
STARTING EDGE SHAPEROUND
STYLE DESIGNATORPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 1018 THRU 1035 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH0.250 INCHES NOMINAL IN
OVERALL WIDTH0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN
MOUNTING HOLE THREAD CLASS2B
MOUNTING HOLE NOMINAL THREAD SIZE0.086 INCHES 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 1
5315010212384Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 10291909?
10291909 is a KEY,MACHINE.
What parts can replace 10291909?
There is 1 known substitute for 10291909: 5315010212384. Substitute compatibility should be verified for your specific system.
What is the NSN for 10291909?
10291909 is cataloged in the U.S. Government catalog under NSN 5315-01-021-2384. 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.