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135839-1 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

135839-1: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-155-7235, 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
135839-1
NSN: 5315-01-155-7235
NIINs: 011557235, 013430312
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 13030 — LOCKHEED MARTIN SIPPICAN, INC. DIV COMMUNICATION DIVISION (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
NSN5315-01-155-7235
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 135839-1 · 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
•
KEY CHAMFER ANGLE: 45.0 DEGREES NOMINAL
•
STARTING EDGE SHAPE: CHAMFERED
•
STYLE DESIGNATOR: OCTAGON SHAPE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
KEY CHAMFER LENGTH: 0.060 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.997 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
KEY CHAMFER ANGLE45.0 DEGREES NOMINAL
STARTING EDGE SHAPECHAMFERED
STYLE DESIGNATOROCTAGON SHAPE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH2.920 INCHES MINIMUM AND 2.960 INCHES MAXIMUM IN
OVERALL WIDTH0.997 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
KEY CHAMFER LENGTH0.060 INCHES NOMINAL IN
MATERIALNICKEL ALLOY K-500 OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
B135839-1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 135839-1?
135839-1 is a KEY,MACHINE.
What parts can replace 135839-1?
There is 1 known substitute for 135839-1: B135839-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 135839-1?
135839-1 is cataloged in the U.S. Government catalog under NSN 5315-01-155-7235. 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.