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12008603 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12008603: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include taper: 2.197 PER FOOT IN INCHES, material: STEEL OVERALL, taper_height: 2.197 INCHES NOMINAL IN, taper_length: 6.970 INCHES MINIMUM AND 7.030 INCHES MAXIMUM IN, overall_width: 1.660 INCHES MINIMUM AND 1.720 INCHES MAXIMUM IN, overall_height: 4.470 INCHES MINIMUM AND 4.530 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-039-6773, 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
12008603
NSN: 5315-01-039-6773
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
taper2.197 PER FOOT IN INCHES
materialSTEEL OVERALL
taper_height2.197 INCHES NOMINAL IN
taper_length6.970 INCHES MINIMUM AND 7.030 INCHES MAXIMUM IN
overall_width1.660 INCHES MINIMUM AND 1.720 INCHES MAXIMUM IN
overall_height4.470 INCHES MINIMUM AND 4.530 INCHES MAXIMUM IN
overall_length8.220 INCHES MINIMUM AND 8.280 INCHES MAXIMUM IN
hardness_rating35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
style_designatorTAPERED
key_chamfer_angle45.0 DEGREES NOMINAL
surface_treatmentPHOSPHATE OVERALL
key_chamfer_length0.120 INCHES NOMINAL IN
NSN5315-01-039-6773
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12008603 · 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
•
HARDNESS RATING: 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
•
STARTING EDGE SHAPE: CHAMFERED
•
STYLE DESIGNATOR: TAPERED
•
KEY CHAMFER LENGTH: 0.120 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT4.470 INCHES MINIMUM AND 4.530 INCHES MAXIMUM IN
KEY CHAMFER ANGLE45.0 DEGREES NOMINAL
HARDNESS RATING35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
STARTING EDGE SHAPECHAMFERED
STYLE DESIGNATORTAPERED
OVERALL LENGTH8.220 INCHES MINIMUM AND 8.280 INCHES MAXIMUM IN
OVERALL WIDTH1.660 INCHES MINIMUM AND 1.720 INCHES MAXIMUM IN
KEY CHAMFER LENGTH0.120 INCHES NOMINAL IN
TAPER LENGTH6.970 INCHES MINIMUM AND 7.030 INCHES MAXIMUM IN
SURFACE TREATMENTPHOSPHATE OVERALL
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

No substitute or cross-reference records for this part.

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 12008603?
12008603 is a KEY,MACHINE.
What is the NSN for 12008603?
12008603 is cataloged in the U.S. Government catalog under NSN 5315-01-039-6773. 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.